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Merge branch 'ino-alloc' of git://repo.or.cz/linux-btrfs-devel into inode_numbers 

Conflicts:
	fs/btrfs/free-space-cache.c

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2011-05-21 09:27:38 -04:00
parent 61c4f2c81c 82d5902d9c
commit 0965537308
19 changed files with 1408 additions and 638 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
fs/btrfs/btrfs_inode.h
View File

@ -166,6 +166,15 @@ static inline struct btrfs_inode *BTRFS_I(struct inode *inode)
return container_of(inode, struct btrfs_inode, vfs_inode);
}
static inline u64 btrfs_ino(struct inode *inode)
{
u64 ino = BTRFS_I(inode)->location.objectid;
if (ino <= BTRFS_FIRST_FREE_OBJECTID)
ino = inode->i_ino;
return ino;
}
static inline void btrfs_i_size_write(struct inode *inode, u64 size)
{
i_size_write(inode, size);

5
fs/btrfs/compression.c
View File

@ -125,9 +125,10 @@ static int check_compressed_csum(struct inode *inode,
kunmap_atomic(kaddr, KM_USER0);
if (csum != *cb_sum) {
printk(KERN_INFO "btrfs csum failed ino %lu "
printk(KERN_INFO "btrfs csum failed ino %llu "
"extent %llu csum %u "
"wanted %u mirror %d\n", inode->i_ino,
"wanted %u mirror %d\n",
(unsigned long long)btrfs_ino(inode),
(unsigned long long)disk_start,
csum, *cb_sum, cb->mirror_num);
ret = -EIO;

29
fs/btrfs/ctree.h
View File

@ -105,6 +105,12 @@ struct btrfs_ordered_sum;
/* For storing free space cache */
#define BTRFS_FREE_SPACE_OBJECTID -11ULL
/*
* The inode number assigned to the special inode for sotring
* free ino cache
*/
#define BTRFS_FREE_INO_OBJECTID -12ULL
/* dummy objectid represents multiple objectids */
#define BTRFS_MULTIPLE_OBJECTIDS -255ULL
@ -830,9 +836,6 @@ struct btrfs_block_group_cache {
u64 bytes_super;
u64 flags;
u64 sectorsize;
int extents_thresh;
int free_extents;
int total_bitmaps;
unsigned int ro:1;
unsigned int dirty:1;
unsigned int iref:1;
@ -847,9 +850,7 @@ struct btrfs_block_group_cache {
struct btrfs_space_info *space_info;
/* free space cache stuff */
spinlock_t tree_lock;
struct rb_root free_space_offset;
u64 free_space;
struct btrfs_free_space_ctl *free_space_ctl;
/* block group cache stuff */
struct rb_node cache_node;
@ -1107,6 +1108,16 @@ struct btrfs_root {
spinlock_t accounting_lock;
struct btrfs_block_rsv *block_rsv;
/* free ino cache stuff */
struct mutex fs_commit_mutex;
struct btrfs_free_space_ctl *free_ino_ctl;
enum btrfs_caching_type cached;
spinlock_t cache_lock;
wait_queue_head_t cache_wait;
struct btrfs_free_space_ctl *free_ino_pinned;
u64 cache_progress;
struct inode *cache_inode;
struct mutex log_mutex;
wait_queue_head_t log_writer_wait;
wait_queue_head_t log_commit_wait[2];
@ -2413,12 +2424,6 @@ int btrfs_del_orphan_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 offset);
int btrfs_find_orphan_item(struct btrfs_root *root, u64 offset);
/* inode-map.c */
int btrfs_find_free_objectid(struct btrfs_trans_handle *trans,
struct btrfs_root *fs_root,
u64 dirid, u64 *objectid);
int btrfs_find_highest_inode(struct btrfs_root *fs_root, u64 *objectid);
/* inode-item.c */
int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *root,

19
fs/btrfs/disk-io.c
View File

@ -41,6 +41,7 @@
#include "locking.h"
#include "tree-log.h"
#include "free-space-cache.h"
#include "inode-map.h"
static struct extent_io_ops btree_extent_io_ops;
static void end_workqueue_fn(struct btrfs_work *work);
@ -1326,6 +1327,19 @@ again:
if (IS_ERR(root))
return root;
root->free_ino_ctl = kzalloc(sizeof(*root->free_ino_ctl), GFP_NOFS);
if (!root->free_ino_ctl)
goto fail;
root->free_ino_pinned = kzalloc(sizeof(*root->free_ino_pinned),
GFP_NOFS);
if (!root->free_ino_pinned)
goto fail;
btrfs_init_free_ino_ctl(root);
mutex_init(&root->fs_commit_mutex);
spin_lock_init(&root->cache_lock);
init_waitqueue_head(&root->cache_wait);
set_anon_super(&root->anon_super, NULL);
if (btrfs_root_refs(&root->root_item) == 0) {
@ -2404,12 +2418,15 @@ int btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root)
if (btrfs_root_refs(&root->root_item) == 0)
synchronize_srcu(&fs_info->subvol_srcu);
__btrfs_remove_free_space_cache(root->free_ino_pinned);
__btrfs_remove_free_space_cache(root->free_ino_ctl);
free_fs_root(root);
return 0;
}
static void free_fs_root(struct btrfs_root *root)
{
iput(root->cache_inode);
WARN_ON(!RB_EMPTY_ROOT(&root->inode_tree));
if (root->anon_super.s_dev) {
down_write(&root->anon_super.s_umount);
@ -2417,6 +2434,8 @@ static void free_fs_root(struct btrfs_root *root)
}
free_extent_buffer(root->node);
free_extent_buffer(root->commit_root);
kfree(root->free_ino_ctl);
kfree(root->free_ino_pinned);
kfree(root->name);
kfree(root);
}

25
fs/btrfs/export.c
View File

@ -32,7 +32,7 @@ static int btrfs_encode_fh(struct dentry *dentry, u32 *fh, int *max_len,
len = BTRFS_FID_SIZE_NON_CONNECTABLE;
type = FILEID_BTRFS_WITHOUT_PARENT;
fid->objectid = inode->i_ino;
fid->objectid = btrfs_ino(inode);
fid->root_objectid = BTRFS_I(inode)->root->objectid;
fid->gen = inode->i_generation;
@ -178,13 +178,13 @@ static struct dentry *btrfs_get_parent(struct dentry *child)
if (!path)
return ERR_PTR(-ENOMEM);
if (dir->i_ino == BTRFS_FIRST_FREE_OBJECTID) {
if (btrfs_ino(dir) == BTRFS_FIRST_FREE_OBJECTID) {
key.objectid = root->root_key.objectid;
key.type = BTRFS_ROOT_BACKREF_KEY;
key.offset = (u64)-1;
root = root->fs_info->tree_root;
} else {
key.objectid = dir->i_ino;
key.objectid = btrfs_ino(dir);
key.type = BTRFS_INODE_REF_KEY;
key.offset = (u64)-1;
}
@ -244,6 +244,7 @@ static int btrfs_get_name(struct dentry *parent, char *name,
struct btrfs_key key;
int name_len;
int ret;
u64 ino;
if (!dir || !inode)
return -EINVAL;
@ -251,19 +252,21 @@ static int btrfs_get_name(struct dentry *parent, char *name,
if (!S_ISDIR(dir->i_mode))
return -EINVAL;
ino = btrfs_ino(inode);
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
path->leave_spinning = 1;
if (inode->i_ino == BTRFS_FIRST_FREE_OBJECTID) {
if (ino == BTRFS_FIRST_FREE_OBJECTID) {
key.objectid = BTRFS_I(inode)->root->root_key.objectid;
key.type = BTRFS_ROOT_BACKREF_KEY;
key.offset = (u64)-1;
root = root->fs_info->tree_root;
} else {
key.objectid = inode->i_ino;
key.offset = dir->i_ino;
key.objectid = ino;
key.offset = btrfs_ino(dir);
key.type = BTRFS_INODE_REF_KEY;
}
@ -272,7 +275,7 @@ static int btrfs_get_name(struct dentry *parent, char *name,
btrfs_free_path(path);
return ret;
} else if (ret > 0) {
if (inode->i_ino == BTRFS_FIRST_FREE_OBJECTID) {
if (ino == BTRFS_FIRST_FREE_OBJECTID) {
path->slots[0]--;
} else {
btrfs_free_path(path);
@ -281,11 +284,11 @@ static int btrfs_get_name(struct dentry *parent, char *name,
}
leaf = path->nodes[0];
if (inode->i_ino == BTRFS_FIRST_FREE_OBJECTID) {
rref = btrfs_item_ptr(leaf, path->slots[0],
if (ino == BTRFS_FIRST_FREE_OBJECTID) {
rref = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_root_ref);
name_ptr = (unsigned long)(rref + 1);
name_len = btrfs_root_ref_name_len(leaf, rref);
name_ptr = (unsigned long)(rref + 1);
name_len = btrfs_root_ref_name_len(leaf, rref);
} else {
iref = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_inode_ref);

50
fs/btrfs/extent-tree.c
View File

@ -105,6 +105,7 @@ void btrfs_put_block_group(struct btrfs_block_group_cache *cache)
WARN_ON(cache->pinned > 0);
WARN_ON(cache->reserved > 0);
WARN_ON(cache->reserved_pinned > 0);
kfree(cache->free_space_ctl);
kfree(cache);
}
}
@ -3144,7 +3145,8 @@ int btrfs_check_data_free_space(struct inode *inode, u64 bytes)
/* make sure bytes are sectorsize aligned */
bytes = (bytes + root->sectorsize - 1) & ~((u64)root->sectorsize - 1);
if (root == root->fs_info->tree_root) {
if (root == root->fs_info->tree_root ||
BTRFS_I(inode)->location.objectid == BTRFS_FREE_INO_OBJECTID) {
alloc_chunk = 0;
committed = 1;
}
@ -4893,7 +4895,7 @@ wait_block_group_cache_progress(struct btrfs_block_group_cache *cache,
return 0;
wait_event(caching_ctl->wait, block_group_cache_done(cache) ||
(cache->free_space >= num_bytes));
(cache->free_space_ctl->free_space >= num_bytes));
put_caching_control(caching_ctl);
return 0;
@ -7008,8 +7010,8 @@ static noinline int get_new_locations(struct inode *reloc_inode,
cur_pos = extent_key->objectid - offset;
last_byte = extent_key->objectid + extent_key->offset;
ret = btrfs_lookup_file_extent(NULL, root, path, reloc_inode->i_ino,
cur_pos, 0);
ret = btrfs_lookup_file_extent(NULL, root, path,
btrfs_ino(reloc_inode), cur_pos, 0);
if (ret < 0)
goto out;
if (ret > 0) {
@ -7032,7 +7034,7 @@ static noinline int get_new_locations(struct inode *reloc_inode,
btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
if (found_key.offset != cur_pos ||
found_key.type != BTRFS_EXTENT_DATA_KEY ||
found_key.objectid != reloc_inode->i_ino)
found_key.objectid != btrfs_ino(reloc_inode))
break;
fi = btrfs_item_ptr(leaf, path->slots[0],
@ -7178,7 +7180,7 @@ next:
break;
}
if (inode && key.objectid != inode->i_ino) {
if (inode && key.objectid != btrfs_ino(inode)) {
BUG_ON(extent_locked);
btrfs_release_path(root, path);
mutex_unlock(&inode->i_mutex);
@ -7487,7 +7489,7 @@ static noinline int invalidate_extent_cache(struct btrfs_root *root,
continue;
if (btrfs_file_extent_disk_bytenr(leaf, fi) == 0)
continue;
if (!inode || inode->i_ino != key.objectid) {
if (!inode || btrfs_ino(inode) != key.objectid) {
iput(inode);
inode = btrfs_ilookup(target_root->fs_info->sb,
key.objectid, target_root, 1);
@ -8555,10 +8557,16 @@ int btrfs_read_block_groups(struct btrfs_root *root)
ret = -ENOMEM;
goto error;
}
cache->free_space_ctl = kzalloc(sizeof(*cache->free_space_ctl),
GFP_NOFS);
if (!cache->free_space_ctl) {
kfree(cache);
ret = -ENOMEM;
goto error;
}
atomic_set(&cache->count, 1);
spin_lock_init(&cache->lock);
spin_lock_init(&cache->tree_lock);
cache->fs_info = info;
INIT_LIST_HEAD(&cache->list);
INIT_LIST_HEAD(&cache->cluster_list);
@ -8566,14 +8574,6 @@ int btrfs_read_block_groups(struct btrfs_root *root)
if (need_clear)
cache->disk_cache_state = BTRFS_DC_CLEAR;
/*
* we only want to have 32k of ram per block group for keeping
* track of free space, and if we pass 1/2 of that we want to
* start converting things over to using bitmaps
*/
cache->extents_thresh = ((1024 * 32) / 2) /
sizeof(struct btrfs_free_space);
read_extent_buffer(leaf, &cache->item,
btrfs_item_ptr_offset(leaf, path->slots[0]),
sizeof(cache->item));
@ -8584,6 +8584,8 @@ int btrfs_read_block_groups(struct btrfs_root *root)
cache->flags = btrfs_block_group_flags(&cache->item);
cache->sectorsize = root->sectorsize;
btrfs_init_free_space_ctl(cache);
/*
* We need to exclude the super stripes now so that the space
* info has super bytes accounted for, otherwise we'll think
@ -8670,6 +8672,12 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
cache = kzalloc(sizeof(*cache), GFP_NOFS);
if (!cache)
return -ENOMEM;
cache->free_space_ctl = kzalloc(sizeof(*cache->free_space_ctl),
GFP_NOFS);
if (!cache->free_space_ctl) {
kfree(cache);
return -ENOMEM;
}
cache->key.objectid = chunk_offset;
cache->key.offset = size;
@ -8677,19 +8685,13 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
cache->sectorsize = root->sectorsize;
cache->fs_info = root->fs_info;
/*
* we only want to have 32k of ram per block group for keeping track
* of free space, and if we pass 1/2 of that we want to start
* converting things over to using bitmaps
*/
cache->extents_thresh = ((1024 * 32) / 2) /
sizeof(struct btrfs_free_space);
atomic_set(&cache->count, 1);
spin_lock_init(&cache->lock);
spin_lock_init(&cache->tree_lock);
INIT_LIST_HEAD(&cache->list);
INIT_LIST_HEAD(&cache->cluster_list);
btrfs_init_free_space_ctl(cache);
btrfs_set_block_group_used(&cache->item, bytes_used);
btrfs_set_block_group_chunk_objectid(&cache->item, chunk_objectid);
cache->flags = type;

4
fs/btrfs/extent_io.c
View File

@ -3030,7 +3030,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
* because there might be preallocation past i_size
*/
ret = btrfs_lookup_file_extent(NULL, BTRFS_I(inode)->root,
path, inode->i_ino, -1, 0);
path, btrfs_ino(inode), -1, 0);
if (ret < 0) {
btrfs_free_path(path);
return ret;
@ -3043,7 +3043,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
found_type = btrfs_key_type(&found_key);
/* No extents, but there might be delalloc bits */
if (found_key.objectid != inode->i_ino ||
if (found_key.objectid != btrfs_ino(inode) ||
found_type != BTRFS_EXTENT_DATA_KEY) {
/* have to trust i_size as the end */
last = (u64)-1;

5
fs/btrfs/file-item.c
View File

@ -208,8 +208,9 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
EXTENT_NODATASUM, GFP_NOFS);
} else {
printk(KERN_INFO "btrfs no csum found "
"for inode %lu start %llu\n",
inode->i_ino,
"for inode %llu start %llu\n",
(unsigned long long)
btrfs_ino(inode),
(unsigned long long)offset);
}
item = NULL;

27
fs/btrfs/file.c
View File

@ -298,6 +298,7 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
struct btrfs_path *path;
struct btrfs_key key;
struct btrfs_key new_key;
u64 ino = btrfs_ino(inode);
u64 search_start = start;
u64 disk_bytenr = 0;
u64 num_bytes = 0;
@ -318,14 +319,14 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
while (1) {
recow = 0;
ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino,
ret = btrfs_lookup_file_extent(trans, root, path, ino,
search_start, -1);
if (ret < 0)
break;
if (ret > 0 && path->slots[0] > 0 && search_start == start) {
leaf = path->nodes[0];
btrfs_item_key_to_cpu(leaf, &key, path->slots[0] - 1);
if (key.objectid == inode->i_ino &&
if (key.objectid == ino &&
key.type == BTRFS_EXTENT_DATA_KEY)
path->slots[0]--;
}
@ -346,7 +347,7 @@ next_slot:
}
btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
if (key.objectid > inode->i_ino ||
if (key.objectid > ino ||
key.type > BTRFS_EXTENT_DATA_KEY || key.offset >= end)
break;
@ -592,6 +593,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
int del_slot = 0;
int recow;
int ret;
u64 ino = btrfs_ino(inode);
btrfs_drop_extent_cache(inode, start, end - 1, 0);
@ -600,7 +602,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
again:
recow = 0;
split = start;
key.objectid = inode->i_ino;
key.objectid = ino;
key.type = BTRFS_EXTENT_DATA_KEY;
key.offset = split;
@ -612,8 +614,7 @@ again:
leaf = path->nodes[0];
btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
BUG_ON(key.objectid != inode->i_ino ||
key.type != BTRFS_EXTENT_DATA_KEY);
BUG_ON(key.objectid != ino || key.type != BTRFS_EXTENT_DATA_KEY);
fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item);
BUG_ON(btrfs_file_extent_type(leaf, fi) !=
@ -630,7 +631,7 @@ again:
other_start = 0;
other_end = start;
if (extent_mergeable(leaf, path->slots[0] - 1,
inode->i_ino, bytenr, orig_offset,
ino, bytenr, orig_offset,
&other_start, &other_end)) {
new_key.offset = end;
btrfs_set_item_key_safe(trans, root, path, &new_key);
@ -653,7 +654,7 @@ again:
other_start = end;
other_end = 0;
if (extent_mergeable(leaf, path->slots[0] + 1,
inode->i_ino, bytenr, orig_offset,
ino, bytenr, orig_offset,
&other_start, &other_end)) {
fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item);
@ -702,7 +703,7 @@ again:
ret = btrfs_inc_extent_ref(trans, root, bytenr, num_bytes, 0,
root->root_key.objectid,
inode->i_ino, orig_offset);
ino, orig_offset);
BUG_ON(ret);
if (split == start) {
@ -718,7 +719,7 @@ again:
other_start = end;
other_end = 0;
if (extent_mergeable(leaf, path->slots[0] + 1,
inode->i_ino, bytenr, orig_offset,
ino, bytenr, orig_offset,
&other_start, &other_end)) {
if (recow) {
btrfs_release_path(root, path);
@ -729,13 +730,13 @@ again:
del_nr++;
ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
0, root->root_key.objectid,
inode->i_ino, orig_offset);
ino, orig_offset);
BUG_ON(ret);
}
other_start = 0;
other_end = start;
if (extent_mergeable(leaf, path->slots[0] - 1,
inode->i_ino, bytenr, orig_offset,
ino, bytenr, orig_offset,
&other_start, &other_end)) {
if (recow) {
btrfs_release_path(root, path);
@ -746,7 +747,7 @@ again:
del_nr++;
ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
0, root->root_key.objectid,
inode->i_ino, orig_offset);
ino, orig_offset);
BUG_ON(ret);
}
if (del_nr == 0) {

978
fs/btrfs/free-space-cache.c
View File

File diff suppressed because it is too large Load Diff

48
fs/btrfs/free-space-cache.h
View File

@ -27,6 +27,25 @@ struct btrfs_free_space {
struct list_head list;
};
struct btrfs_free_space_ctl {
spinlock_t tree_lock;
struct rb_root free_space_offset;
u64 free_space;
int extents_thresh;
int free_extents;
int total_bitmaps;
int unit;
u64 start;
struct btrfs_free_space_op *op;
void *private;
};
struct btrfs_free_space_op {
void (*recalc_thresholds)(struct btrfs_free_space_ctl *ctl);
bool (*use_bitmap)(struct btrfs_free_space_ctl *ctl,
struct btrfs_free_space *info);
};
struct inode *lookup_free_space_inode(struct btrfs_root *root,
struct btrfs_block_group_cache
*block_group, struct btrfs_path *path);
@ -45,17 +64,38 @@ int btrfs_write_out_cache(struct btrfs_root *root,
struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path);
int btrfs_add_free_space(struct btrfs_block_group_cache *block_group,
u64 bytenr, u64 size);
struct inode *lookup_free_ino_inode(struct btrfs_root *root,
struct btrfs_path *path);
int create_free_ino_inode(struct btrfs_root *root,
struct btrfs_trans_handle *trans,
struct btrfs_path *path);
int load_free_ino_cache(struct btrfs_fs_info *fs_info,
struct btrfs_root *root);
int btrfs_write_out_ino_cache(struct btrfs_root *root,
struct btrfs_trans_handle *trans,
struct btrfs_path *path);
void btrfs_init_free_space_ctl(struct btrfs_block_group_cache *block_group);
int __btrfs_add_free_space(struct btrfs_free_space_ctl *ctl,
u64 bytenr, u64 size);
static inline int
btrfs_add_free_space(struct btrfs_block_group_cache *block_group,
u64 bytenr, u64 size)
{
return __btrfs_add_free_space(block_group->free_space_ctl,
bytenr, size);
}
int btrfs_remove_free_space(struct btrfs_block_group_cache *block_group,
u64 bytenr, u64 size);
void __btrfs_remove_free_space_cache(struct btrfs_free_space_ctl *ctl);
void btrfs_remove_free_space_cache(struct btrfs_block_group_cache
*block_group);
*block_group);
u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group,
u64 offset, u64 bytes, u64 empty_size);
u64 btrfs_find_ino_for_alloc(struct btrfs_root *fs_root);
void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group,
u64 bytes);
u64 btrfs_block_group_free_space(struct btrfs_block_group_cache *block_group);
int btrfs_find_space_cluster(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_block_group_cache *block_group,

428
fs/btrfs/inode-map.c
View File

@ -16,11 +16,430 @@
* Boston, MA 021110-1307, USA.
*/
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/pagemap.h>
#include "ctree.h"
#include "disk-io.h"
#include "free-space-cache.h"
#include "inode-map.h"
#include "transaction.h"
int btrfs_find_highest_inode(struct btrfs_root *root, u64 *objectid)
static int caching_kthread(void *data)
{
struct btrfs_root *root = data;
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
struct btrfs_key key;
struct btrfs_path *path;
struct extent_buffer *leaf;
u64 last = (u64)-1;
int slot;
int ret;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
/* Since the commit root is read-only, we can safely skip locking. */
path->skip_locking = 1;
path->search_commit_root = 1;
path->reada = 2;
key.objectid = BTRFS_FIRST_FREE_OBJECTID;
key.offset = 0;
key.type = BTRFS_INODE_ITEM_KEY;
again:
/* need to make sure the commit_root doesn't disappear */
mutex_lock(&root->fs_commit_mutex);
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
if (ret < 0)
goto out;
while (1) {
smp_mb();
if (fs_info->closing > 1)
goto out;
leaf = path->nodes[0];
slot = path->slots[0];
if (path->slots[0] >= btrfs_header_nritems(leaf)) {
ret = btrfs_next_leaf(root, path);
if (ret < 0)
goto out;
else if (ret > 0)
break;
if (need_resched() ||
btrfs_transaction_in_commit(fs_info)) {
leaf = path->nodes[0];
if (btrfs_header_nritems(leaf) == 0) {
WARN_ON(1);
break;
}
/*
* Save the key so we can advances forward
* in the next search.
*/
btrfs_item_key_to_cpu(leaf, &key, 0);
btrfs_release_path(root, path);
root->cache_progress = last;
mutex_unlock(&root->fs_commit_mutex);
schedule_timeout(1);
goto again;
} else
continue;
}
btrfs_item_key_to_cpu(leaf, &key, slot);
if (key.type != BTRFS_INODE_ITEM_KEY)
goto next;
if (key.objectid >= BTRFS_LAST_FREE_OBJECTID)
break;
if (last != (u64)-1 && last + 1 != key.objectid) {
__btrfs_add_free_space(ctl, last + 1,
key.objectid - last - 1);
wake_up(&root->cache_wait);
}
last = key.objectid;
next:
path->slots[0]++;
}
if (last < BTRFS_LAST_FREE_OBJECTID - 1) {
__btrfs_add_free_space(ctl, last + 1,
BTRFS_LAST_FREE_OBJECTID - last - 1);
}
spin_lock(&root->cache_lock);
root->cached = BTRFS_CACHE_FINISHED;
spin_unlock(&root->cache_lock);
root->cache_progress = (u64)-1;
btrfs_unpin_free_ino(root);
out:
wake_up(&root->cache_wait);
mutex_unlock(&root->fs_commit_mutex);
btrfs_free_path(path);
return ret;
}
static void start_caching(struct btrfs_root *root)
{
struct task_struct *tsk;
int ret;
spin_lock(&root->cache_lock);
if (root->cached != BTRFS_CACHE_NO) {
spin_unlock(&root->cache_lock);
return;
}
root->cached = BTRFS_CACHE_STARTED;
spin_unlock(&root->cache_lock);
ret = load_free_ino_cache(root->fs_info, root);
if (ret == 1) {
spin_lock(&root->cache_lock);
root->cached = BTRFS_CACHE_FINISHED;
spin_unlock(&root->cache_lock);
return;
}
tsk = kthread_run(caching_kthread, root, "btrfs-ino-cache-%llu\n",
root->root_key.objectid);
BUG_ON(IS_ERR(tsk));
}
int btrfs_find_free_ino(struct btrfs_root *root, u64 *objectid)
{
again:
*objectid = btrfs_find_ino_for_alloc(root);
if (*objectid != 0)
return 0;
start_caching(root);
wait_event(root->cache_wait,
root->cached == BTRFS_CACHE_FINISHED ||
root->free_ino_ctl->free_space > 0);
if (root->cached == BTRFS_CACHE_FINISHED &&
root->free_ino_ctl->free_space == 0)
return -ENOSPC;
else
goto again;
}
void btrfs_return_ino(struct btrfs_root *root, u64 objectid)
{
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
struct btrfs_free_space_ctl *pinned = root->free_ino_pinned;
again:
if (root->cached == BTRFS_CACHE_FINISHED) {
__btrfs_add_free_space(ctl, objectid, 1);
} else {
/*
* If we are in the process of caching free ino chunks,
* to avoid adding the same inode number to the free_ino
* tree twice due to cross transaction, we'll leave it
* in the pinned tree until a transaction is committed
* or the caching work is done.
*/
mutex_lock(&root->fs_commit_mutex);
spin_lock(&root->cache_lock);
if (root->cached == BTRFS_CACHE_FINISHED) {
spin_unlock(&root->cache_lock);
mutex_unlock(&root->fs_commit_mutex);
goto again;
}
spin_unlock(&root->cache_lock);
start_caching(root);
if (objectid <= root->cache_progress)
__btrfs_add_free_space(ctl, objectid, 1);
else
__btrfs_add_free_space(pinned, objectid, 1);
mutex_unlock(&root->fs_commit_mutex);
}
}
/*
* When a transaction is committed, we'll move those inode numbers which
* are smaller than root->cache_progress from pinned tree to free_ino tree,
* and others will just be dropped, because the commit root we were
* searching has changed.
*
* Must be called with root->fs_commit_mutex held
*/
void btrfs_unpin_free_ino(struct btrfs_root *root)
{
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
struct rb_root *rbroot = &root->free_ino_pinned->free_space_offset;
struct btrfs_free_space *info;
struct rb_node *n;
u64 count;
while (1) {
n = rb_first(rbroot);
if (!n)
break;
info = rb_entry(n, struct btrfs_free_space, offset_index);
BUG_ON(info->bitmap);
if (info->offset > root->cache_progress)
goto free;
else if (info->offset + info->bytes > root->cache_progress)
count = root->cache_progress - info->offset + 1;
else
count = info->bytes;
__btrfs_add_free_space(ctl, info->offset, count);
free:
rb_erase(&info->offset_index, rbroot);
kfree(info);
}
}
#define INIT_THRESHOLD (((1024 * 32) / 2) / sizeof(struct btrfs_free_space))
#define INODES_PER_BITMAP (PAGE_CACHE_SIZE * 8)
/*
* The goal is to keep the memory used by the free_ino tree won't
* exceed the memory if we use bitmaps only.
*/
static void recalculate_thresholds(struct btrfs_free_space_ctl *ctl)
{
struct btrfs_free_space *info;
struct rb_node *n;
int max_ino;
int max_bitmaps;
n = rb_last(&ctl->free_space_offset);
if (!n) {
ctl->extents_thresh = INIT_THRESHOLD;
return;
}
info = rb_entry(n, struct btrfs_free_space, offset_index);
/*
* Find the maximum inode number in the filesystem. Note we
* ignore the fact that this can be a bitmap, because we are
* not doing precise calculation.
*/
max_ino = info->bytes - 1;
max_bitmaps = ALIGN(max_ino, INODES_PER_BITMAP) / INODES_PER_BITMAP;
if (max_bitmaps <= ctl->total_bitmaps) {
ctl->extents_thresh = 0;
return;
}
ctl->extents_thresh = (max_bitmaps - ctl->total_bitmaps) *
PAGE_CACHE_SIZE / sizeof(*info);
}
/*
* We don't fall back to bitmap, if we are below the extents threshold
* or this chunk of inode numbers is a big one.
*/
static bool use_bitmap(struct btrfs_free_space_ctl *ctl,
struct btrfs_free_space *info)
{
if (ctl->free_extents < ctl->extents_thresh ||
info->bytes > INODES_PER_BITMAP / 10)
return false;
return true;
}
static struct btrfs_free_space_op free_ino_op = {
.recalc_thresholds = recalculate_thresholds,
.use_bitmap = use_bitmap,
};
static void pinned_recalc_thresholds(struct btrfs_free_space_ctl *ctl)
{
}
static bool pinned_use_bitmap(struct btrfs_free_space_ctl *ctl,
struct btrfs_free_space *info)
{
/*
* We always use extents for two reasons:
*
* - The pinned tree is only used during the process of caching
* work.
* - Make code simpler. See btrfs_unpin_free_ino().
*/
return false;
}
static struct btrfs_free_space_op pinned_free_ino_op = {
.recalc_thresholds = pinned_recalc_thresholds,
.use_bitmap = pinned_use_bitmap,
};
void btrfs_init_free_ino_ctl(struct btrfs_root *root)
{
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
struct btrfs_free_space_ctl *pinned = root->free_ino_pinned;
spin_lock_init(&ctl->tree_lock);
ctl->unit = 1;
ctl->start = 0;
ctl->private = NULL;
ctl->op = &free_ino_op;
/*
* Initially we allow to use 16K of ram to cache chunks of
* inode numbers before we resort to bitmaps. This is somewhat
* arbitrary, but it will be adjusted in runtime.
*/
ctl->extents_thresh = INIT_THRESHOLD;
spin_lock_init(&pinned->tree_lock);
pinned->unit = 1;
pinned->start = 0;
pinned->private = NULL;
pinned->extents_thresh = 0;
pinned->op = &pinned_free_ino_op;
}
int btrfs_save_ino_cache(struct btrfs_root *root,
struct btrfs_trans_handle *trans)
{
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
struct btrfs_path *path;
struct inode *inode;
u64 alloc_hint = 0;
int ret;
int prealloc;
bool retry = false;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
again:
inode = lookup_free_ino_inode(root, path);
if (IS_ERR(inode) && PTR_ERR(inode) != -ENOENT) {
ret = PTR_ERR(inode);
goto out;
}
if (IS_ERR(inode)) {
BUG_ON(retry);
retry = true;
ret = create_free_ino_inode(root, trans, path);
if (ret)
goto out;
goto again;
}
BTRFS_I(inode)->generation = 0;
ret = btrfs_update_inode(trans, root, inode);
WARN_ON(ret);
if (i_size_read(inode) > 0) {
ret = btrfs_truncate_free_space_cache(root, trans, path, inode);
if (ret)
goto out_put;
}
spin_lock(&root->cache_lock);
if (root->cached != BTRFS_CACHE_FINISHED) {
ret = -1;
spin_unlock(&root->cache_lock);
goto out_put;
}
spin_unlock(&root->cache_lock);
spin_lock(&ctl->tree_lock);
prealloc = sizeof(struct btrfs_free_space) * ctl->free_extents;
prealloc = ALIGN(prealloc, PAGE_CACHE_SIZE);
prealloc += ctl->total_bitmaps * PAGE_CACHE_SIZE;
spin_unlock(&ctl->tree_lock);
/* Just to make sure we have enough space */
prealloc += 8 * PAGE_CACHE_SIZE;
ret = btrfs_check_data_free_space(inode, prealloc);
if (ret)
goto out_put;
ret = btrfs_prealloc_file_range_trans(inode, trans, 0, 0, prealloc,
prealloc, prealloc, &alloc_hint);
if (ret)
goto out_put;
btrfs_free_reserved_data_space(inode, prealloc);
out_put:
iput(inode);
out:
if (ret == 0)
ret = btrfs_write_out_ino_cache(root, trans, path);
btrfs_free_path(path);
return ret;
}
static int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid)
{
struct btrfs_path *path;
int ret;
@ -55,15 +474,14 @@ error:
return ret;
}
int btrfs_find_free_objectid(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 dirid, u64 *objectid)
int btrfs_find_free_objectid(struct btrfs_root *root, u64 *objectid)
{
int ret;
mutex_lock(&root->objectid_mutex);
if (unlikely(root->highest_objectid < BTRFS_FIRST_FREE_OBJECTID)) {
ret = btrfs_find_highest_inode(root, &root->highest_objectid);
ret = btrfs_find_highest_objectid(root,
&root->highest_objectid);
if (ret)
goto out;
}

13
fs/btrfs/inode-map.h Normal file
View File

@ -0,0 +1,13 @@
#ifndef __BTRFS_INODE_MAP
#define __BTRFS_INODE_MAP
void btrfs_init_free_ino_ctl(struct btrfs_root *root);
void btrfs_unpin_free_ino(struct btrfs_root *root);
void btrfs_return_ino(struct btrfs_root *root, u64 objectid);
int btrfs_find_free_ino(struct btrfs_root *root, u64 *objectid);
int btrfs_save_ino_cache(struct btrfs_root *root,
struct btrfs_trans_handle *trans);
int btrfs_find_free_objectid(struct btrfs_root *root, u64 *objectid);
#endif

282
fs/btrfs/inode.c
View File

@ -51,6 +51,7 @@
#include "compression.h"
#include "locking.h"
#include "free-space-cache.h"
#include "inode-map.h"
struct btrfs_iget_args {
u64 ino;
@ -138,7 +139,7 @@ static noinline int insert_inline_extent(struct btrfs_trans_handle *trans,
path->leave_spinning = 1;
btrfs_set_trans_block_group(trans, inode);
key.objectid = inode->i_ino;
key.objectid = btrfs_ino(inode);
key.offset = start;
btrfs_set_key_type(&key, BTRFS_EXTENT_DATA_KEY);
datasize = btrfs_file_extent_calc_inline_size(cur_size);
@ -745,6 +746,15 @@ static u64 get_extent_allocation_hint(struct inode *inode, u64 start,
return alloc_hint;
}
static inline bool is_free_space_inode(struct btrfs_root *root,
struct inode *inode)
{
if (root == root->fs_info->tree_root ||
BTRFS_I(inode)->location.objectid == BTRFS_FREE_INO_OBJECTID)
return true;
return false;
}
/*
* when extent_io.c finds a delayed allocation range in the file,
* the call backs end up in this code. The basic idea is to
@ -777,7 +787,7 @@ static noinline int cow_file_range(struct inode *inode,
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
int ret = 0;
BUG_ON(root == root->fs_info->tree_root);
BUG_ON(is_free_space_inode(root, inode));
trans = btrfs_join_transaction(root, 1);
BUG_ON(IS_ERR(trans));
btrfs_set_trans_block_group(trans, inode);
@ -1049,29 +1059,31 @@ static noinline int run_delalloc_nocow(struct inode *inode,
int type;
int nocow;
int check_prev = 1;
bool nolock = false;
bool nolock;
u64 ino = btrfs_ino(inode);
path = btrfs_alloc_path();
BUG_ON(!path);
if (root == root->fs_info->tree_root) {
nolock = true;
nolock = is_free_space_inode(root, inode);
if (nolock)
trans = btrfs_join_transaction_nolock(root, 1);
} else {
else
trans = btrfs_join_transaction(root, 1);
}
BUG_ON(IS_ERR(trans));
cow_start = (u64)-1;
cur_offset = start;
while (1) {
ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino,
ret = btrfs_lookup_file_extent(trans, root, path, ino,
cur_offset, 0);
BUG_ON(ret < 0);
if (ret > 0 && path->slots[0] > 0 && check_prev) {
leaf = path->nodes[0];
btrfs_item_key_to_cpu(leaf, &found_key,
path->slots[0] - 1);
if (found_key.objectid == inode->i_ino &&
if (found_key.objectid == ino &&
found_key.type == BTRFS_EXTENT_DATA_KEY)
path->slots[0]--;
}
@ -1092,7 +1104,7 @@ next_slot:
num_bytes = 0;
btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
if (found_key.objectid > inode->i_ino ||
if (found_key.objectid > ino ||
found_key.type > BTRFS_EXTENT_DATA_KEY ||
found_key.offset > end)
break;
@ -1127,7 +1139,7 @@ next_slot:
goto out_check;
if (btrfs_extent_readonly(root, disk_bytenr))
goto out_check;
if (btrfs_cross_ref_exist(trans, root, inode->i_ino,
if (btrfs_cross_ref_exist(trans, root, ino,
found_key.offset -
extent_offset, disk_bytenr))
goto out_check;
@ -1316,8 +1328,7 @@ static int btrfs_set_bit_hook(struct inode *inode,
if (!(state->state & EXTENT_DELALLOC) && (*bits & EXTENT_DELALLOC)) {
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 len = state->end + 1 - state->start;
int do_list = (root->root_key.objectid !=
BTRFS_ROOT_TREE_OBJECTID);
bool do_list = !is_free_space_inode(root, inode);
if (*bits & EXTENT_FIRST_DELALLOC)
*bits &= ~EXTENT_FIRST_DELALLOC;
@ -1350,8 +1361,7 @@ static int btrfs_clear_bit_hook(struct inode *inode,
if ((state->state & EXTENT_DELALLOC) && (*bits & EXTENT_DELALLOC)) {
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 len = state->end + 1 - state->start;
int do_list = (root->root_key.objectid !=
BTRFS_ROOT_TREE_OBJECTID);
bool do_list = !is_free_space_inode(root, inode);
if (*bits & EXTENT_FIRST_DELALLOC)
*bits &= ~EXTENT_FIRST_DELALLOC;
@ -1458,7 +1468,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM;
if (root == root->fs_info->tree_root)
if (is_free_space_inode(root, inode))
ret = btrfs_bio_wq_end_io(root->fs_info, bio, 2);
else
ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
@ -1644,7 +1654,7 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
&hint, 0);
BUG_ON(ret);
ins.objectid = inode->i_ino;
ins.objectid = btrfs_ino(inode);
ins.offset = file_pos;
ins.type = BTRFS_EXTENT_DATA_KEY;
ret = btrfs_insert_empty_item(trans, root, path, &ins, sizeof(*fi));
@ -1675,7 +1685,7 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
ins.type = BTRFS_EXTENT_ITEM_KEY;
ret = btrfs_alloc_reserved_file_extent(trans, root,
root->root_key.objectid,
inode->i_ino, file_pos, &ins);
btrfs_ino(inode), file_pos, &ins);
BUG_ON(ret);
btrfs_free_path(path);
@ -1701,7 +1711,7 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end)
struct extent_state *cached_state = NULL;
int compress_type = 0;
int ret;
bool nolock = false;
bool nolock;
ret = btrfs_dec_test_ordered_pending(inode, &ordered_extent, start,
end - start + 1);
@ -1709,7 +1719,7 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end)
return 0;
BUG_ON(!ordered_extent);
nolock = (root == root->fs_info->tree_root);
nolock = is_free_space_inode(root, inode);
if (test_bit(BTRFS_ORDERED_NOCOW, &ordered_extent->flags)) {
BUG_ON(!list_empty(&ordered_extent->list));
@ -2005,8 +2015,9 @@ good:
zeroit:
if (printk_ratelimit()) {
printk(KERN_INFO "btrfs csum failed ino %lu off %llu csum %u "
"private %llu\n", page->mapping->host->i_ino,
printk(KERN_INFO "btrfs csum failed ino %llu off %llu csum %u "
"private %llu\n",
(unsigned long long)btrfs_ino(page->mapping->host),
(unsigned long long)start, csum,
(unsigned long long)private);
}
@ -2244,7 +2255,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
/* insert an orphan item to track this unlinked/truncated file */
if (insert >= 1) {
ret = btrfs_insert_orphan_item(trans, root, inode->i_ino);
ret = btrfs_insert_orphan_item(trans, root, btrfs_ino(inode));
BUG_ON(ret);
}
@ -2281,7 +2292,7 @@ int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode)
spin_unlock(&root->orphan_lock);
if (trans && delete_item) {
ret = btrfs_del_orphan_item(trans, root, inode->i_ino);
ret = btrfs_del_orphan_item(trans, root, btrfs_ino(inode));
BUG_ON(ret);
}
@ -2543,7 +2554,8 @@ static void btrfs_read_locked_inode(struct inode *inode)
* try to precache a NULL acl entry for files that don't have
* any xattrs or acls
*/
maybe_acls = acls_after_inode_item(leaf, path->slots[0], inode->i_ino);
maybe_acls = acls_after_inode_item(leaf, path->slots[0],
btrfs_ino(inode));
if (!maybe_acls)
cache_no_acl(inode);
@ -2689,6 +2701,8 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
struct btrfs_dir_item *di;
struct btrfs_key key;
u64 index;
u64 ino = btrfs_ino(inode);
u64 dir_ino = btrfs_ino(dir);
path = btrfs_alloc_path();
if (!path) {
@ -2697,7 +2711,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
}
path->leave_spinning = 1;
di = btrfs_lookup_dir_item(trans, root, path, dir->i_ino,
di = btrfs_lookup_dir_item(trans, root, path, dir_ino,
name, name_len, -1);
if (IS_ERR(di)) {
ret = PTR_ERR(di);
@ -2714,17 +2728,16 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
goto err;
btrfs_release_path(root, path);
ret = btrfs_del_inode_ref(trans, root, name, name_len,
inode->i_ino,
dir->i_ino, &index);
ret = btrfs_del_inode_ref(trans, root, name, name_len, ino,
dir_ino, &index);
if (ret) {
printk(KERN_INFO "btrfs failed to delete reference to %.*s, "
"inode %lu parent %lu\n", name_len, name,
inode->i_ino, dir->i_ino);
"inode %llu parent %llu\n", name_len, name,
(unsigned long long)ino, (unsigned long long)dir_ino);
goto err;
}
di = btrfs_lookup_dir_index_item(trans, root, path, dir->i_ino,
di = btrfs_lookup_dir_index_item(trans, root, path, dir_ino,
index, name, name_len, -1);
if (IS_ERR(di)) {
ret = PTR_ERR(di);
@ -2738,7 +2751,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
btrfs_release_path(root, path);
ret = btrfs_del_inode_ref_in_log(trans, root, name, name_len,
inode, dir->i_ino);
inode, dir_ino);
BUG_ON(ret != 0 && ret != -ENOENT);
ret = btrfs_del_dir_entries_in_log(trans, root, name, name_len,
@ -2816,12 +2829,14 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
int check_link = 1;
int err = -ENOSPC;
int ret;
u64 ino = btrfs_ino(inode);
u64 dir_ino = btrfs_ino(dir);
trans = btrfs_start_transaction(root, 10);
if (!IS_ERR(trans) || PTR_ERR(trans) != -ENOSPC)
return trans;
if (inode->i_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
if (ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
return ERR_PTR(-ENOSPC);
/* check if there is someone else holds reference */
@ -2880,7 +2895,7 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
if (ret == 0 && S_ISREG(inode->i_mode)) {
ret = btrfs_lookup_file_extent(trans, root, path,
inode->i_ino, (u64)-1, 0);
ino, (u64)-1, 0);
if (ret < 0) {
err = ret;
goto out;
@ -2896,7 +2911,7 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
goto out;
}
di = btrfs_lookup_dir_item(trans, root, path, dir->i_ino,
di = btrfs_lookup_dir_item(trans, root, path, dir_ino,
dentry->d_name.name, dentry->d_name.len, 0);
if (IS_ERR(di)) {
err = PTR_ERR(di);
@ -2913,7 +2928,7 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
ref = btrfs_lookup_inode_ref(trans, root, path,
dentry->d_name.name, dentry->d_name.len,
inode->i_ino, dir->i_ino, 0);
ino, dir_ino, 0);
if (IS_ERR(ref)) {
err = PTR_ERR(ref);
goto out;
@ -2924,7 +2939,7 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
index = btrfs_inode_ref_index(path->nodes[0], ref);
btrfs_release_path(root, path);
di = btrfs_lookup_dir_index_item(trans, root, path, dir->i_ino, index,
di = btrfs_lookup_dir_index_item(trans, root, path, dir_ino, index,
dentry->d_name.name, dentry->d_name.len, 0);
if (IS_ERR(di)) {
err = PTR_ERR(di);
@ -2999,12 +3014,13 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
struct btrfs_key key;
u64 index;
int ret;
u64 dir_ino = btrfs_ino(dir);
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
di = btrfs_lookup_dir_item(trans, root, path, dir->i_ino,
di = btrfs_lookup_dir_item(trans, root, path, dir_ino,
name, name_len, -1);
BUG_ON(!di || IS_ERR(di));
@ -3017,10 +3033,10 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
ret = btrfs_del_root_ref(trans, root->fs_info->tree_root,
objectid, root->root_key.objectid,
dir->i_ino, &index, name, name_len);
dir_ino, &index, name, name_len);
if (ret < 0) {
BUG_ON(ret != -ENOENT);
di = btrfs_search_dir_index_item(root, path, dir->i_ino,
di = btrfs_search_dir_index_item(root, path, dir_ino,
name, name_len);
BUG_ON(!di || IS_ERR(di));
@ -3030,7 +3046,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
index = key.offset;
}
di = btrfs_lookup_dir_index_item(trans, root, path, dir->i_ino,
di = btrfs_lookup_dir_index_item(trans, root, path, dir_ino,
index, name, name_len, -1);
BUG_ON(!di || IS_ERR(di));
@ -3059,7 +3075,7 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
unsigned long nr = 0;
if (inode->i_size > BTRFS_EMPTY_DIR_SIZE ||
inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
btrfs_ino(inode) == BTRFS_FIRST_FREE_OBJECTID)
return -ENOTEMPTY;
trans = __unlink_start_trans(dir, dentry);
@ -3068,7 +3084,7 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
btrfs_set_trans_block_group(trans, dir);
if (unlikely(inode->i_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
if (unlikely(btrfs_ino(inode) == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
err = btrfs_unlink_subvol(trans, root, dir,
BTRFS_I(inode)->location.objectid,
dentry->d_name.name,
@ -3300,6 +3316,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
int encoding;
int ret;
int err = 0;
u64 ino = btrfs_ino(inode);
BUG_ON(new_size > 0 && min_type != BTRFS_EXTENT_DATA_KEY);
@ -3310,7 +3327,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
BUG_ON(!path);
path->reada = -1;
key.objectid = inode->i_ino;
key.objectid = ino;
key.offset = (u64)-1;
key.type = (u8)-1;
@ -3338,7 +3355,7 @@ search_again:
found_type = btrfs_key_type(&found_key);
encoding = 0;
if (found_key.objectid != inode->i_ino)
if (found_key.objectid != ino)
break;
if (found_type < min_type)
@ -3457,7 +3474,7 @@ delete:
ret = btrfs_free_extent(trans, root, extent_start,
extent_num_bytes, 0,
btrfs_header_owner(leaf),
inode->i_ino, extent_offset);
ino, extent_offset);
BUG_ON(ret);
}
@ -3466,7 +3483,9 @@ delete:
if (path->slots[0] == 0 ||
path->slots[0] != pending_del_slot) {
if (root->ref_cows) {
if (root->ref_cows &&
BTRFS_I(inode)->location.objectid !=
BTRFS_FREE_INO_OBJECTID) {
err = -EAGAIN;
goto out;
}
@ -3656,7 +3675,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
break;
err = btrfs_insert_file_extent(trans, root,
inode->i_ino, cur_offset, 0,
btrfs_ino(inode), cur_offset, 0,
0, hole_size, 0, hole_size,
0, 0, 0);
if (err)
@ -3758,7 +3777,7 @@ void btrfs_evict_inode(struct inode *inode)
truncate_inode_pages(&inode->i_data, 0);
if (inode->i_nlink && (btrfs_root_refs(&root->root_item) != 0 ||
root == root->fs_info->tree_root))
is_free_space_inode(root, inode)))
goto no_delete;
if (is_bad_inode(inode)) {
@ -3811,6 +3830,10 @@ void btrfs_evict_inode(struct inode *inode)
BUG_ON(ret);
}
if (!(root == root->fs_info->tree_root ||
root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID))
btrfs_return_ino(root, btrfs_ino(inode));
nr = trans->blocks_used;
btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root, nr);
@ -3836,7 +3859,7 @@ static int btrfs_inode_by_name(struct inode *dir, struct dentry *dentry,
path = btrfs_alloc_path();
BUG_ON(!path);
di = btrfs_lookup_dir_item(NULL, root, path, dir->i_ino, name,
di = btrfs_lookup_dir_item(NULL, root, path, btrfs_ino(dir), name,
namelen, 0);
if (IS_ERR(di))
ret = PTR_ERR(di);
@ -3889,7 +3912,7 @@ static int fixup_tree_root_location(struct btrfs_root *root,
leaf = path->nodes[0];
ref = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_root_ref);
if (btrfs_root_ref_dirid(leaf, ref) != dir->i_ino ||
if (btrfs_root_ref_dirid(leaf, ref) != btrfs_ino(dir) ||
btrfs_root_ref_name_len(leaf, ref) != dentry->d_name.len)
goto out;
@ -3928,6 +3951,7 @@ static void inode_tree_add(struct inode *inode)
struct btrfs_inode *entry;
struct rb_node **p;
struct rb_node *parent;
u64 ino = btrfs_ino(inode);
again:
p = &root->inode_tree.rb_node;
parent = NULL;
@ -3940,9 +3964,9 @@ again:
parent = *p;
entry = rb_entry(parent, struct btrfs_inode, rb_node);
if (inode->i_ino < entry->vfs_inode.i_ino)
if (ino < btrfs_ino(&entry->vfs_inode))
p = &parent->rb_left;
else if (inode->i_ino > entry->vfs_inode.i_ino)
else if (ino > btrfs_ino(&entry->vfs_inode))
p = &parent->rb_right;
else {
WARN_ON(!(entry->vfs_inode.i_state &
@ -4006,9 +4030,9 @@ again:
prev = node;
entry = rb_entry(node, struct btrfs_inode, rb_node);
if (objectid < entry->vfs_inode.i_ino)
if (objectid < btrfs_ino(&entry->vfs_inode))
node = node->rb_left;
else if (objectid > entry->vfs_inode.i_ino)
else if (objectid > btrfs_ino(&entry->vfs_inode))
node = node->rb_right;
else
break;
@ -4016,7 +4040,7 @@ again:
if (!node) {
while (prev) {
entry = rb_entry(prev, struct btrfs_inode, rb_node);
if (objectid <= entry->vfs_inode.i_ino) {
if (objectid <= btrfs_ino(&entry->vfs_inode)) {
node = prev;
break;
}
@ -4025,7 +4049,7 @@ again:
}
while (node) {
entry = rb_entry(node, struct btrfs_inode, rb_node);
objectid = entry->vfs_inode.i_ino + 1;
objectid = btrfs_ino(&entry->vfs_inode) + 1;
inode = igrab(&entry->vfs_inode);
if (inode) {
spin_unlock(&root->inode_lock);
@ -4063,7 +4087,7 @@ static int btrfs_init_locked_inode(struct inode *inode, void *p)
static int btrfs_find_actor(struct inode *inode, void *opaque)
{
struct btrfs_iget_args *args = opaque;
return args->ino == inode->i_ino &&
return args->ino == btrfs_ino(inode) &&
args->root == BTRFS_I(inode)->root;
}
@ -4241,9 +4265,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
/* special case for "." */
if (filp->f_pos == 0) {
over = filldir(dirent, ".", 1,
1, inode->i_ino,
DT_DIR);
over = filldir(dirent, ".", 1, 1, btrfs_ino(inode), DT_DIR);
if (over)
return 0;
filp->f_pos = 1;
@ -4262,7 +4284,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
btrfs_set_key_type(&key, key_type);
key.offset = filp->f_pos;
key.objectid = inode->i_ino;
key.objectid = btrfs_ino(inode);
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
if (ret < 0)
@ -4372,7 +4394,8 @@ int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc)
return 0;
smp_mb();
nolock = (root->fs_info->closing && root == root->fs_info->tree_root);
if (root->fs_info->closing && is_free_space_inode(root, inode))
nolock = true;
if (wbc->sync_mode == WB_SYNC_ALL) {
if (nolock)
@ -4417,8 +4440,9 @@ void btrfs_dirty_inode(struct inode *inode)
if (IS_ERR(trans)) {
if (printk_ratelimit()) {
printk(KERN_ERR "btrfs: fail to "
"dirty inode %lu error %ld\n",
inode->i_ino, PTR_ERR(trans));
"dirty inode %llu error %ld\n",
(unsigned long long)btrfs_ino(inode),
PTR_ERR(trans));
}
return;
}
@ -4428,8 +4452,9 @@ void btrfs_dirty_inode(struct inode *inode)
if (ret) {
if (printk_ratelimit()) {
printk(KERN_ERR "btrfs: fail to "
"dirty inode %lu error %d\n",
inode->i_ino, ret);
"dirty inode %llu error %d\n",
(unsigned long long)btrfs_ino(inode),
ret);
}
}
}
@ -4449,7 +4474,7 @@ static int btrfs_set_inode_index_count(struct inode *inode)
struct extent_buffer *leaf;
int ret;
key.objectid = inode->i_ino;
key.objectid = btrfs_ino(inode);
btrfs_set_key_type(&key, BTRFS_DIR_INDEX_KEY);
key.offset = (u64)-1;
@ -4481,7 +4506,7 @@ static int btrfs_set_inode_index_count(struct inode *inode)
leaf = path->nodes[0];
btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
if (found_key.objectid != inode->i_ino ||
if (found_key.objectid != btrfs_ino(inode) ||
btrfs_key_type(&found_key) != BTRFS_DIR_INDEX_KEY) {
BTRFS_I(inode)->index_cnt = 2;
goto out;
@ -4540,6 +4565,12 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
return ERR_PTR(-ENOMEM);
}
/*
* we have to initialize this early, so we can reclaim the inode
* number if we fail afterwards in this function.
*/
inode->i_ino = objectid;
if (dir) {
trace_btrfs_inode_request(dir);
@ -4585,7 +4616,6 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
goto fail;
inode_init_owner(inode, dir, mode);
inode->i_ino = objectid;
inode_set_bytes(inode, 0);
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
@ -4649,29 +4679,29 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
int ret = 0;
struct btrfs_key key;
struct btrfs_root *root = BTRFS_I(parent_inode)->root;
u64 ino = btrfs_ino(inode);
u64 parent_ino = btrfs_ino(parent_inode);
if (unlikely(inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)) {
if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
memcpy(&key, &BTRFS_I(inode)->root->root_key, sizeof(key));
} else {
key.objectid = inode->i_ino;
key.objectid = ino;
btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY);
key.offset = 0;
}
if (unlikely(inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)) {
if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,
key.objectid, root->root_key.objectid,
parent_inode->i_ino,
index, name, name_len);
parent_ino, index, name, name_len);
} else if (add_backref) {
ret = btrfs_insert_inode_ref(trans, root,
name, name_len, inode->i_ino,
parent_inode->i_ino, index);
ret = btrfs_insert_inode_ref(trans, root, name, name_len, ino,
parent_ino, index);
}
if (ret == 0) {
ret = btrfs_insert_dir_item(trans, root, name, name_len,
parent_inode->i_ino, &key,
parent_ino, &key,
btrfs_inode_type(inode), index);
BUG_ON(ret);
@ -4714,10 +4744,6 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
if (!new_valid_dev(rdev))
return -EINVAL;
err = btrfs_find_free_objectid(NULL, root, dir->i_ino, &objectid);
if (err)
return err;
/*
* 2 for inode item and ref
* 2 for dir items
@ -4729,8 +4755,12 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
btrfs_set_trans_block_group(trans, dir);
err = btrfs_find_free_ino(root, &objectid);
if (err)
goto out_unlock;
inode = btrfs_new_inode(trans, root, dir, dentry->d_name.name,
dentry->d_name.len, dir->i_ino, objectid,
dentry->d_name.len, btrfs_ino(dir), objectid,
BTRFS_I(dir)->block_group, mode, &index);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
@ -4777,9 +4807,6 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
u64 objectid;
u64 index = 0;
err = btrfs_find_free_objectid(NULL, root, dir->i_ino, &objectid);
if (err)
return err;
/*
* 2 for inode item and ref
* 2 for dir items
@ -4791,8 +4818,12 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
btrfs_set_trans_block_group(trans, dir);
err = btrfs_find_free_ino(root, &objectid);
if (err)
goto out_unlock;
inode = btrfs_new_inode(trans, root, dir, dentry->d_name.name,
dentry->d_name.len, dir->i_ino, objectid,
dentry->d_name.len, btrfs_ino(dir), objectid,
BTRFS_I(dir)->block_group, mode, &index);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
@ -4903,10 +4934,6 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
u64 index = 0;
unsigned long nr = 1;
err = btrfs_find_free_objectid(NULL, root, dir->i_ino, &objectid);
if (err)
return err;
/*
* 2 items for inode and ref
* 2 items for dir items
@ -4917,8 +4944,12 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
return PTR_ERR(trans);
btrfs_set_trans_block_group(trans, dir);
err = btrfs_find_free_ino(root, &objectid);
if (err)
goto out_fail;
inode = btrfs_new_inode(trans, root, dir, dentry->d_name.name,
dentry->d_name.len, dir->i_ino, objectid,
dentry->d_name.len, btrfs_ino(dir), objectid,
BTRFS_I(dir)->block_group, S_IFDIR | mode,
&index);
if (IS_ERR(inode)) {
@ -5041,7 +5072,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
u64 bytenr;
u64 extent_start = 0;
u64 extent_end = 0;
u64 objectid = inode->i_ino;
u64 objectid = btrfs_ino(inode);
u32 found_type;
struct btrfs_path *path = NULL;
struct btrfs_root *root = BTRFS_I(inode)->root;
@ -5549,7 +5580,7 @@ static noinline int can_nocow_odirect(struct btrfs_trans_handle *trans,
if (!path)
return -ENOMEM;
ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino,
ret = btrfs_lookup_file_extent(trans, root, path, btrfs_ino(inode),
offset, 0);
if (ret < 0)
goto out;
@ -5566,7 +5597,7 @@ static noinline int can_nocow_odirect(struct btrfs_trans_handle *trans,
ret = 0;
leaf = path->nodes[0];
btrfs_item_key_to_cpu(leaf, &key, slot);
if (key.objectid != inode->i_ino ||
if (key.objectid != btrfs_ino(inode) ||
key.type != BTRFS_EXTENT_DATA_KEY) {
/* not our file or wrong item type, must cow */
goto out;
@ -5600,7 +5631,7 @@ static noinline int can_nocow_odirect(struct btrfs_trans_handle *trans,
* look for other files referencing this extent, if we
* find any we must cow
*/
if (btrfs_cross_ref_exist(trans, root, inode->i_ino,
if (btrfs_cross_ref_exist(trans, root, btrfs_ino(inode),
key.offset - backref_offset, disk_bytenr))
goto out;
@ -5790,9 +5821,10 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
flush_dcache_page(bvec->bv_page);
if (csum != *private) {
printk(KERN_ERR "btrfs csum failed ino %lu off"
printk(KERN_ERR "btrfs csum failed ino %llu off"
" %llu csum %u private %u\n",
inode->i_ino, (unsigned long long)start,
(unsigned long long)btrfs_ino(inode),
(unsigned long long)start,
csum, *private);
err = -EIO;
}
@ -5939,9 +5971,9 @@ static void btrfs_end_dio_bio(struct bio *bio, int err)
struct btrfs_dio_private *dip = bio->bi_private;
if (err) {
printk(KERN_ERR "btrfs direct IO failed ino %lu rw %lu "
printk(KERN_ERR "btrfs direct IO failed ino %llu rw %lu "
"sector %#Lx len %u err no %d\n",
dip->inode->i_ino, bio->bi_rw,
(unsigned long long)btrfs_ino(dip->inode), bio->bi_rw,
(unsigned long long)bio->bi_sector, bio->bi_size, err);
dip->errors = 1;
@ -6851,8 +6883,8 @@ void btrfs_destroy_inode(struct inode *inode)
spin_lock(&root->orphan_lock);
if (!list_empty(&BTRFS_I(inode)->i_orphan)) {
printk(KERN_INFO "BTRFS: inode %lu still on the orphan list\n",
inode->i_ino);
printk(KERN_INFO "BTRFS: inode %llu still on the orphan list\n",
(unsigned long long)btrfs_ino(inode));
list_del_init(&BTRFS_I(inode)->i_orphan);
}
spin_unlock(&root->orphan_lock);
@ -6882,7 +6914,7 @@ int btrfs_drop_inode(struct inode *inode)
struct btrfs_root *root = BTRFS_I(inode)->root;
if (btrfs_root_refs(&root->root_item) == 0 &&
root != root->fs_info->tree_root)
!is_free_space_inode(root, inode))
return 1;
else
return generic_drop_inode(inode);
@ -6991,16 +7023,17 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
u64 index = 0;
u64 root_objectid;
int ret;
u64 old_ino = btrfs_ino(old_inode);
if (new_dir->i_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
if (btrfs_ino(new_dir) == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
return -EPERM;
/* we only allow rename subvolume link between subvolumes */
if (old_inode->i_ino != BTRFS_FIRST_FREE_OBJECTID && root != dest)
if (old_ino != BTRFS_FIRST_FREE_OBJECTID && root != dest)
return -EXDEV;
if (old_inode->i_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID ||
(new_inode && new_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID))
if (old_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID ||
(new_inode && btrfs_ino(new_inode) == BTRFS_FIRST_FREE_OBJECTID))
return -ENOTEMPTY;
if (S_ISDIR(old_inode->i_mode) && new_inode &&
@ -7016,7 +7049,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
filemap_flush(old_inode->i_mapping);
/* close the racy window with snapshot create/destroy ioctl */
if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
down_read(&root->fs_info->subvol_sem);
/*
* We want to reserve the absolute worst case amount of items. So if
@ -7041,15 +7074,15 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (ret)
goto out_fail;
if (unlikely(old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)) {
if (unlikely(old_ino == BTRFS_FIRST_FREE_OBJECTID)) {
/* force full log commit if subvolume involved. */
root->fs_info->last_trans_log_full_commit = trans->transid;
} else {
ret = btrfs_insert_inode_ref(trans, dest,
new_dentry->d_name.name,
new_dentry->d_name.len,
old_inode->i_ino,
new_dir->i_ino, index);
old_ino,
btrfs_ino(new_dir), index);
if (ret)
goto out_fail;
/*
@ -7065,10 +7098,8 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
* make sure the inode gets flushed if it is replacing
* something.
*/
if (new_inode && new_inode->i_size &&
old_inode && S_ISREG(old_inode->i_mode)) {
if (new_inode && new_inode->i_size && S_ISREG(old_inode->i_mode))
btrfs_add_ordered_operation(trans, root, old_inode);
}
old_dir->i_ctime = old_dir->i_mtime = ctime;
new_dir->i_ctime = new_dir->i_mtime = ctime;
@ -7077,7 +7108,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (old_dentry->d_parent != new_dentry->d_parent)
btrfs_record_unlink_dir(trans, old_dir, old_inode, 1);
if (unlikely(old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)) {
if (unlikely(old_ino == BTRFS_FIRST_FREE_OBJECTID)) {
root_objectid = BTRFS_I(old_inode)->root->root_key.objectid;
ret = btrfs_unlink_subvol(trans, root, old_dir, root_objectid,
old_dentry->d_name.name,
@ -7094,7 +7125,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (new_inode) {
new_inode->i_ctime = CURRENT_TIME;
if (unlikely(new_inode->i_ino ==
if (unlikely(btrfs_ino(new_inode) ==
BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
root_objectid = BTRFS_I(new_inode)->location.objectid;
ret = btrfs_unlink_subvol(trans, dest, new_dir,
@ -7122,7 +7153,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
new_dentry->d_name.len, 0, index);
BUG_ON(ret);
if (old_inode->i_ino != BTRFS_FIRST_FREE_OBJECTID) {
if (old_ino != BTRFS_FIRST_FREE_OBJECTID) {
struct dentry *parent = dget_parent(new_dentry);
btrfs_log_new_name(trans, old_inode, old_dir, parent);
dput(parent);
@ -7131,7 +7162,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
out_fail:
btrfs_end_transaction_throttle(trans, root);
out_notrans:
if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
up_read(&root->fs_info->subvol_sem);
return ret;
@ -7260,9 +7291,6 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(root))
return -ENAMETOOLONG;
err = btrfs_find_free_objectid(NULL, root, dir->i_ino, &objectid);
if (err)
return err;
/*
* 2 items for inode item and ref
* 2 items for dir items
@ -7274,8 +7302,12 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
btrfs_set_trans_block_group(trans, dir);
err = btrfs_find_free_ino(root, &objectid);
if (err)
goto out_unlock;
inode = btrfs_new_inode(trans, root, dir, dentry->d_name.name,
dentry->d_name.len, dir->i_ino, objectid,
dentry->d_name.len, btrfs_ino(dir), objectid,
BTRFS_I(dir)->block_group, S_IFLNK|S_IRWXUGO,
&index);
if (IS_ERR(inode)) {
@ -7307,7 +7339,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
path = btrfs_alloc_path();
BUG_ON(!path);
key.objectid = inode->i_ino;
key.objectid = btrfs_ino(inode);
key.offset = 0;
btrfs_set_key_type(&key, BTRFS_EXTENT_DATA_KEY);
datasize = btrfs_file_extent_calc_inline_size(name_len);

22
fs/btrfs/ioctl.c
View File

@ -50,6 +50,7 @@
#include "print-tree.h"
#include "volumes.h"
#include "locking.h"
#include "inode-map.h"
/* Mask out flags that are inappropriate for the given type of inode. */
static inline __u32 btrfs_mask_flags(umode_t mode, __u32 flags)
@ -329,8 +330,7 @@ static noinline int create_subvol(struct btrfs_root *root,
u64 new_dirid = BTRFS_FIRST_FREE_OBJECTID;
u64 index = 0;
ret = btrfs_find_free_objectid(NULL, root->fs_info->tree_root,
0, &objectid);
ret = btrfs_find_free_objectid(root->fs_info->tree_root, &objectid);
if (ret) {
dput(parent);
return ret;
@ -422,7 +422,7 @@ static noinline int create_subvol(struct btrfs_root *root,
BUG_ON(ret);
ret = btrfs_insert_dir_item(trans, root,
name, namelen, dir->i_ino, &key,
name, namelen, btrfs_ino(dir), &key,
BTRFS_FT_DIR, index);
if (ret)
goto fail;
@ -433,7 +433,7 @@ static noinline int create_subvol(struct btrfs_root *root,
ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,
objectid, root->root_key.objectid,
dir->i_ino, index, name, namelen);
btrfs_ino(dir), index, name, namelen);
BUG_ON(ret);
@ -1129,7 +1129,7 @@ static noinline int btrfs_ioctl_subvol_getflags(struct file *file,
int ret = 0;
u64 flags = 0;
if (inode->i_ino != BTRFS_FIRST_FREE_OBJECTID)
if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID)
return -EINVAL;
down_read(&root->fs_info->subvol_sem);
@ -1156,7 +1156,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
if (root->fs_info->sb->s_flags & MS_RDONLY)
return -EROFS;
if (inode->i_ino != BTRFS_FIRST_FREE_OBJECTID)
if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID)
return -EINVAL;
if (copy_from_user(&flags, arg, sizeof(flags)))
@ -1639,7 +1639,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
goto out_dput;
}
if (inode->i_ino != BTRFS_FIRST_FREE_OBJECTID) {
if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID) {
err = -EINVAL;
goto out_dput;
}
@ -1925,7 +1925,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
}
/* clone data */
key.objectid = src->i_ino;
key.objectid = btrfs_ino(src);
key.type = BTRFS_EXTENT_DATA_KEY;
key.offset = 0;
@ -1952,7 +1952,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
btrfs_item_key_to_cpu(leaf, &key, slot);
if (btrfs_key_type(&key) > BTRFS_EXTENT_DATA_KEY ||
key.objectid != src->i_ino)
key.objectid != btrfs_ino(src))
break;
if (btrfs_key_type(&key) == BTRFS_EXTENT_DATA_KEY) {
@ -1995,7 +1995,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
goto next;
memcpy(&new_key, &key, sizeof(new_key));
new_key.objectid = inode->i_ino;
new_key.objectid = btrfs_ino(inode);
if (off <= key.offset)
new_key.offset = key.offset + destoff - off;
else
@ -2049,7 +2049,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
ret = btrfs_inc_extent_ref(trans, root,
disko, diskl, 0,
root->root_key.objectid,
inode->i_ino,
btrfs_ino(inode),
new_key.offset - datao);
BUG_ON(ret);
}

27
fs/btrfs/relocation.c
View File

@ -30,6 +30,7 @@
#include "btrfs_inode.h"
#include "async-thread.h"
#include "free-space-cache.h"
#include "inode-map.h"
/*
* backref_node, mapping_node and tree_block start with this
@ -1409,9 +1410,9 @@ again:
prev = node;
entry = rb_entry(node, struct btrfs_inode, rb_node);
if (objectid < entry->vfs_inode.i_ino)
if (objectid < btrfs_ino(&entry->vfs_inode))
node = node->rb_left;
else if (objectid > entry->vfs_inode.i_ino)
else if (objectid > btrfs_ino(&entry->vfs_inode))
node = node->rb_right;
else
break;
@ -1419,7 +1420,7 @@ again:
if (!node) {
while (prev) {
entry = rb_entry(prev, struct btrfs_inode, rb_node);
if (objectid <= entry->vfs_inode.i_ino) {
if (objectid <= btrfs_ino(&entry->vfs_inode)) {
node = prev;
break;
}
@ -1434,7 +1435,7 @@ again:
return inode;
}
objectid = entry->vfs_inode.i_ino + 1;
objectid = btrfs_ino(&entry->vfs_inode) + 1;
if (cond_resched_lock(&root->inode_lock))
goto again;
@ -1470,7 +1471,7 @@ static int get_new_location(struct inode *reloc_inode, u64 *new_bytenr,
return -ENOMEM;
bytenr -= BTRFS_I(reloc_inode)->index_cnt;
ret = btrfs_lookup_file_extent(NULL, root, path, reloc_inode->i_ino,
ret = btrfs_lookup_file_extent(NULL, root, path, btrfs_ino(reloc_inode),
bytenr, 0);
if (ret < 0)
goto out;
@ -1558,11 +1559,11 @@ int replace_file_extents(struct btrfs_trans_handle *trans,
if (first) {
inode = find_next_inode(root, key.objectid);
first = 0;
} else if (inode && inode->i_ino < key.objectid) {
} else if (inode && btrfs_ino(inode) < key.objectid) {
btrfs_add_delayed_iput(inode);
inode = find_next_inode(root, key.objectid);
}
if (inode && inode->i_ino == key.objectid) {
if (inode && btrfs_ino(inode) == key.objectid) {
end = key.offset +
btrfs_file_extent_num_bytes(leaf, fi);
WARN_ON(!IS_ALIGNED(key.offset,
@ -1893,6 +1894,7 @@ static int invalidate_extent_cache(struct btrfs_root *root,
struct inode *inode = NULL;
u64 objectid;
u64 start, end;
u64 ino;
objectid = min_key->objectid;
while (1) {
@ -1905,17 +1907,18 @@ static int invalidate_extent_cache(struct btrfs_root *root,
inode = find_next_inode(root, objectid);
if (!inode)
break;
ino = btrfs_ino(inode);
if (inode->i_ino > max_key->objectid) {
if (ino > max_key->objectid) {
iput(inode);
break;
}
objectid = inode->i_ino + 1;
objectid = ino + 1;
if (!S_ISREG(inode->i_mode))
continue;
if (unlikely(min_key->objectid == inode->i_ino)) {
if (unlikely(min_key->objectid == ino)) {
if (min_key->type > BTRFS_EXTENT_DATA_KEY)
continue;
if (min_key->type < BTRFS_EXTENT_DATA_KEY)
@ -1928,7 +1931,7 @@ static int invalidate_extent_cache(struct btrfs_root *root,
start = 0;
}
if (unlikely(max_key->objectid == inode->i_ino)) {
if (unlikely(max_key->objectid == ino)) {
if (max_key->type < BTRFS_EXTENT_DATA_KEY)
continue;
if (max_key->type > BTRFS_EXTENT_DATA_KEY) {
@ -3897,7 +3900,7 @@ struct inode *create_reloc_inode(struct btrfs_fs_info *fs_info,
if (IS_ERR(trans))
return ERR_CAST(trans);
err = btrfs_find_free_objectid(trans, root, objectid, &objectid);
err = btrfs_find_free_objectid(root, &objectid);
if (err)
goto out;

13
fs/btrfs/transaction.c
View File

@ -27,6 +27,7 @@
#include "transaction.h"
#include "locking.h"
#include "tree-log.h"
#include "inode-map.h"
#define BTRFS_ROOT_TRANS_TAG 0
@ -760,8 +761,14 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans,
btrfs_update_reloc_root(trans, root);
btrfs_orphan_commit_root(trans, root);
btrfs_save_ino_cache(root, trans);
if (root->commit_root != root->node) {
mutex_lock(&root->fs_commit_mutex);
switch_commit_root(root);
btrfs_unpin_free_ino(root);
mutex_unlock(&root->fs_commit_mutex);
btrfs_set_root_node(&root->root_item,
root->node);
}
@ -930,7 +937,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
goto fail;
}
ret = btrfs_find_free_objectid(trans, tree_root, 0, &objectid);
ret = btrfs_find_free_objectid(tree_root, &objectid);
if (ret) {
pending->error = ret;
goto fail;
@ -967,7 +974,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
BUG_ON(ret);
ret = btrfs_insert_dir_item(trans, parent_root,
dentry->d_name.name, dentry->d_name.len,
parent_inode->i_ino, &key,
btrfs_ino(parent_inode), &key,
BTRFS_FT_DIR, index);
BUG_ON(ret);
@ -1009,7 +1016,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
*/
ret = btrfs_add_root_ref(trans, tree_root, objectid,
parent_root->root_key.objectid,
parent_inode->i_ino, index,
btrfs_ino(parent_inode), index,
dentry->d_name.name, dentry->d_name.len);
BUG_ON(ret);
dput(parent);

54
fs/btrfs/tree-log.c
View File

@ -519,7 +519,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
* file. This must be done before the btrfs_drop_extents run
* so we don't try to drop this extent.
*/
ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino,
ret = btrfs_lookup_file_extent(trans, root, path, btrfs_ino(inode),
start, 0);
if (ret == 0 &&
@ -832,7 +832,7 @@ again:
read_extent_buffer(eb, name, (unsigned long)(ref + 1), namelen);
/* if we already have a perfect match, we're done */
if (inode_in_dir(root, path, dir->i_ino, inode->i_ino,
if (inode_in_dir(root, path, btrfs_ino(dir), btrfs_ino(inode),
btrfs_inode_ref_index(eb, ref),
name, namelen)) {
goto out;
@ -960,8 +960,9 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans,
unsigned long ptr;
unsigned long ptr_end;
int name_len;
u64 ino = btrfs_ino(inode);
key.objectid = inode->i_ino;
key.objectid = ino;
key.type = BTRFS_INODE_REF_KEY;
key.offset = (u64)-1;
@ -980,7 +981,7 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans,
}
btrfs_item_key_to_cpu(path->nodes[0], &key,
path->slots[0]);
if (key.objectid != inode->i_ino ||
if (key.objectid != ino ||
key.type != BTRFS_INODE_REF_KEY)
break;
ptr = btrfs_item_ptr_offset(path->nodes[0], path->slots[0]);
@ -1011,10 +1012,10 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans,
if (inode->i_nlink == 0) {
if (S_ISDIR(inode->i_mode)) {
ret = replay_dir_deletes(trans, root, NULL, path,
inode->i_ino, 1);
ino, 1);
BUG_ON(ret);
}
ret = insert_orphan_item(trans, root, inode->i_ino);
ret = insert_orphan_item(trans, root, ino);
BUG_ON(ret);
}
btrfs_free_path(path);
@ -2197,6 +2198,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
int ret;
int err = 0;
int bytes_del = 0;
u64 dir_ino = btrfs_ino(dir);
if (BTRFS_I(dir)->logged_trans < trans->transid)
return 0;
@ -2214,7 +2216,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
goto out_unlock;
}
di = btrfs_lookup_dir_item(trans, log, path, dir->i_ino,
di = btrfs_lookup_dir_item(trans, log, path, dir_ino,
name, name_len, -1);
if (IS_ERR(di)) {
err = PTR_ERR(di);
@ -2226,7 +2228,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
BUG_ON(ret);
}
btrfs_release_path(log, path);
di = btrfs_lookup_dir_index_item(trans, log, path, dir->i_ino,
di = btrfs_lookup_dir_index_item(trans, log, path, dir_ino,
index, name, name_len, -1);
if (IS_ERR(di)) {
err = PTR_ERR(di);
@ -2244,7 +2246,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
if (bytes_del) {
struct btrfs_key key;
key.objectid = dir->i_ino;
key.objectid = dir_ino;
key.offset = 0;
key.type = BTRFS_INODE_ITEM_KEY;
btrfs_release_path(log, path);
@ -2303,7 +2305,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
log = root->log_root;
mutex_lock(&BTRFS_I(inode)->log_mutex);
ret = btrfs_del_inode_ref(trans, log, name, name_len, inode->i_ino,
ret = btrfs_del_inode_ref(trans, log, name, name_len, btrfs_ino(inode),
dirid, &index);
mutex_unlock(&BTRFS_I(inode)->log_mutex);
if (ret == -ENOSPC) {
@ -2369,13 +2371,14 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
int nritems;
u64 first_offset = min_offset;
u64 last_offset = (u64)-1;
u64 ino = btrfs_ino(inode);
log = root->log_root;
max_key.objectid = inode->i_ino;
max_key.objectid = ino;
max_key.offset = (u64)-1;
max_key.type = key_type;
min_key.objectid = inode->i_ino;
min_key.objectid = ino;
min_key.type = key_type;
min_key.offset = min_offset;
@ -2388,9 +2391,8 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
* we didn't find anything from this transaction, see if there
* is anything at all
*/
if (ret != 0 || min_key.objectid != inode->i_ino ||
min_key.type != key_type) {
min_key.objectid = inode->i_ino;
if (ret != 0 || min_key.objectid != ino || min_key.type != key_type) {
min_key.objectid = ino;
min_key.type = key_type;
min_key.offset = (u64)-1;
btrfs_release_path(root, path);
@ -2399,7 +2401,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
btrfs_release_path(root, path);
return ret;
}
ret = btrfs_previous_item(root, path, inode->i_ino, key_type);
ret = btrfs_previous_item(root, path, ino, key_type);
/* if ret == 0 there are items for this type,
* create a range to tell us the last key of this type.
@ -2417,7 +2419,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
}
/* go backward to find any previous key */
ret = btrfs_previous_item(root, path, inode->i_ino, key_type);
ret = btrfs_previous_item(root, path, ino, key_type);
if (ret == 0) {
struct btrfs_key tmp;
btrfs_item_key_to_cpu(path->nodes[0], &tmp, path->slots[0]);
@ -2452,8 +2454,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
for (i = path->slots[0]; i < nritems; i++) {
btrfs_item_key_to_cpu(src, &min_key, i);
if (min_key.objectid != inode->i_ino ||
min_key.type != key_type)
if (min_key.objectid != ino || min_key.type != key_type)
goto done;
ret = overwrite_item(trans, log, dst_path, src, i,
&min_key);
@ -2474,7 +2475,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
goto done;
}
btrfs_item_key_to_cpu(path->nodes[0], &tmp, path->slots[0]);
if (tmp.objectid != inode->i_ino || tmp.type != key_type) {
if (tmp.objectid != ino || tmp.type != key_type) {
last_offset = (u64)-1;
goto done;
}
@ -2500,8 +2501,7 @@ done:
* is valid
*/
ret = insert_dir_log_key(trans, log, path, key_type,
inode->i_ino, first_offset,
last_offset);
ino, first_offset, last_offset);
if (ret)
err = ret;
}
@ -2745,6 +2745,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
int nritems;
int ins_start_slot = 0;
int ins_nr;
u64 ino = btrfs_ino(inode);
log = root->log_root;
@ -2757,11 +2758,11 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
return -ENOMEM;
}
min_key.objectid = inode->i_ino;
min_key.objectid = ino;
min_key.type = BTRFS_INODE_ITEM_KEY;
min_key.offset = 0;
max_key.objectid = inode->i_ino;
max_key.objectid = ino;
/* today the code can only do partial logging of directories */
if (!S_ISDIR(inode->i_mode))
@ -2784,8 +2785,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
if (inode_only == LOG_INODE_EXISTS)
max_key_type = BTRFS_XATTR_ITEM_KEY;
ret = drop_objectid_items(trans, log, path,
inode->i_ino, max_key_type);
ret = drop_objectid_items(trans, log, path, ino, max_key_type);
} else {
ret = btrfs_truncate_inode_items(trans, log, inode, 0, 0);
}
@ -2803,7 +2803,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
break;
again:
/* note, ins_nr might be > 0 here, cleanup outside the loop */
if (min_key.objectid != inode->i_ino)
if (min_key.objectid != ino)
break;
if (min_key.type > max_key.type)
break;

8
fs/btrfs/xattr.c
View File

@ -44,7 +44,7 @@ ssize_t __btrfs_getxattr(struct inode *inode, const char *name,
return -ENOMEM;
/* lookup the xattr by name */
di = btrfs_lookup_xattr(NULL, root, path, inode->i_ino, name,
di = btrfs_lookup_xattr(NULL, root, path, btrfs_ino(inode), name,
strlen(name), 0);
if (!di) {
ret = -ENODATA;
@ -103,7 +103,7 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
return -ENOMEM;
/* first lets see if we already have this xattr */
di = btrfs_lookup_xattr(trans, root, path, inode->i_ino, name,
di = btrfs_lookup_xattr(trans, root, path, btrfs_ino(inode), name,
strlen(name), -1);
if (IS_ERR(di)) {
ret = PTR_ERR(di);
@ -136,7 +136,7 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
}
/* ok we have to create a completely new xattr */
ret = btrfs_insert_xattr_item(trans, root, path, inode->i_ino,
ret = btrfs_insert_xattr_item(trans, root, path, btrfs_ino(inode),
name, name_len, value, size);
BUG_ON(ret);
out:
@ -190,7 +190,7 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size)
* NOTE: we set key.offset = 0; because we want to start with the
* first xattr that we find and walk forward
*/
key.objectid = inode->i_ino;
key.objectid = btrfs_ino(inode);
btrfs_set_key_type(&key, BTRFS_XATTR_ITEM_KEY);
key.offset = 0;