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Merge branch 'cleanup/misc-for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus 

Signed-off-by: Chris Mason <clm@fb.com>

Conflicts:
	fs/btrfs/extent_io.c
This commit is contained in:
Chris Mason 2014-10-04 09:56:45 -07:00
parent bf8e8ca6fd fccb84c94a
commit bbf65cf0b5
17 changed files with 130 additions and 135 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
fs/btrfs/compression.c
View File

@ -388,7 +388,8 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
* freed before we're done setting it up
*/
atomic_inc(&cb->pending_bios);
ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
ret = btrfs_bio_wq_end_io(root->fs_info, bio,
BTRFS_WQ_ENDIO_DATA);
BUG_ON(ret); /* -ENOMEM */
if (!skip_sum) {
@ -419,7 +420,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
}
bio_get(bio);
ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
ret = btrfs_bio_wq_end_io(root->fs_info, bio, BTRFS_WQ_ENDIO_DATA);
BUG_ON(ret); /* -ENOMEM */
if (!skip_sum) {
@ -668,7 +669,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
PAGE_CACHE_SIZE) {
bio_get(comp_bio);
ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,
BTRFS_WQ_ENDIO_DATA);
BUG_ON(ret); /* -ENOMEM */
/*
@ -706,7 +708,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
}
bio_get(comp_bio);
ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,
BTRFS_WQ_ENDIO_DATA);
BUG_ON(ret); /* -ENOMEM */
if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {

8
fs/btrfs/ctree.c
View File

@ -1506,10 +1506,9 @@ static inline int should_cow_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *buf)
{
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state)))
if (btrfs_test_is_dummy_root(root))
return 0;
#endif
/* ensure we can see the force_cow */
smp_rmb();
@ -4625,8 +4624,7 @@ void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path,
ptr = btrfs_item_ptr_offset(leaf, slot);
memmove_extent_buffer(leaf, ptr,
(unsigned long)fi,
offsetof(struct btrfs_file_extent_item,
disk_bytenr));
BTRFS_FILE_EXTENT_INLINE_DATA_START);
}
}

26
fs/btrfs/ctree.h
View File

@ -385,9 +385,11 @@ struct btrfs_header {
sizeof(struct btrfs_key_ptr))
#define __BTRFS_LEAF_DATA_SIZE(bs) ((bs) - sizeof(struct btrfs_header))
#define BTRFS_LEAF_DATA_SIZE(r) (__BTRFS_LEAF_DATA_SIZE(r->nodesize))
#define BTRFS_FILE_EXTENT_INLINE_DATA_START \
(offsetof(struct btrfs_file_extent_item, disk_bytenr))
#define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \
sizeof(struct btrfs_item) - \
offsetof(struct btrfs_file_extent_item, disk_bytenr))
BTRFS_FILE_EXTENT_INLINE_DATA_START)
#define BTRFS_MAX_XATTR_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \
sizeof(struct btrfs_item) -\
sizeof(struct btrfs_dir_item))
@ -896,6 +898,8 @@ struct btrfs_file_extent_item {
/*
* disk space consumed by the extent, checksum blocks are included
* in these numbers
*
* At this offset in the structure, the inline extent data start.
*/
__le64 disk_bytenr;
__le64 disk_num_bytes;
@ -2089,6 +2093,7 @@ struct btrfs_ioctl_defrag_range_args {
#define BTRFS_MOUNT_CHANGE_INODE_CACHE (1 << 24)
#define BTRFS_DEFAULT_COMMIT_INTERVAL (30)
#define BTRFS_DEFAULT_MAX_INLINE (8192)
#define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt)
#define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt)
@ -3042,14 +3047,12 @@ BTRFS_SETGET_STACK_FUNCS(stack_file_extent_compression,
static inline unsigned long
btrfs_file_extent_inline_start(struct btrfs_file_extent_item *e)
{
unsigned long offset = (unsigned long)e;
offset += offsetof(struct btrfs_file_extent_item, disk_bytenr);
return offset;
return (unsigned long)e + BTRFS_FILE_EXTENT_INLINE_DATA_START;
}
static inline u32 btrfs_file_extent_calc_inline_size(u32 datasize)
{
return offsetof(struct btrfs_file_extent_item, disk_bytenr) + datasize;
return BTRFS_FILE_EXTENT_INLINE_DATA_START + datasize;
}
BTRFS_SETGET_FUNCS(file_extent_disk_bytenr, struct btrfs_file_extent_item,
@ -3079,9 +3082,7 @@ BTRFS_SETGET_FUNCS(file_extent_other_encoding, struct btrfs_file_extent_item,
static inline u32 btrfs_file_extent_inline_item_len(struct extent_buffer *eb,
struct btrfs_item *e)
{
unsigned long offset;
offset = offsetof(struct btrfs_file_extent_item, disk_bytenr);
return btrfs_item_size(eb, e) - offset;
return btrfs_item_size(eb, e) - BTRFS_FILE_EXTENT_INLINE_DATA_START;
}
/* this returns the number of file bytes represented by the inline item.
@ -4128,4 +4129,13 @@ static inline int btrfs_defrag_cancelled(struct btrfs_fs_info *fs_info)
void btrfs_test_destroy_inode(struct inode *inode);
#endif
static inline int btrfs_test_is_dummy_root(struct btrfs_root *root)
{
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state)))
return 1;
#endif
return 0;
}
#endif

61
fs/btrfs/disk-io.c
View File

@ -72,21 +72,41 @@ static int btrfs_cleanup_transaction(struct btrfs_root *root);
static void btrfs_error_commit_super(struct btrfs_root *root);
/*
* end_io_wq structs are used to do processing in task context when an IO is
* complete. This is used during reads to verify checksums, and it is used
* btrfs_end_io_wq structs are used to do processing in task context when an IO
* is complete. This is used during reads to verify checksums, and it is used
* by writes to insert metadata for new file extents after IO is complete.
*/
struct end_io_wq {
struct btrfs_end_io_wq {
struct bio *bio;
bio_end_io_t *end_io;
void *private;
struct btrfs_fs_info *info;
int error;
int metadata;
enum btrfs_wq_endio_type metadata;
struct list_head list;
struct btrfs_work work;
};
static struct kmem_cache *btrfs_end_io_wq_cache;
int __init btrfs_end_io_wq_init(void)
{
btrfs_end_io_wq_cache = kmem_cache_create("btrfs_end_io_wq",
sizeof(struct btrfs_end_io_wq),
0,
SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD,
NULL);
if (!btrfs_end_io_wq_cache)
return -ENOMEM;
return 0;
}
void btrfs_end_io_wq_exit(void)
{
if (btrfs_end_io_wq_cache)
kmem_cache_destroy(btrfs_end_io_wq_cache);
}
/*
* async submit bios are used to offload expensive checksumming
* onto the worker threads. They checksum file and metadata bios
@ -327,8 +347,7 @@ static int verify_parent_transid(struct extent_io_tree *io_tree,
{
struct extent_state *cached_state = NULL;
int ret;
bool need_lock = (current->journal_info ==
(void *)BTRFS_SEND_TRANS_STUB);
bool need_lock = (current->journal_info == BTRFS_SEND_TRANS_STUB);
if (!parent_transid || btrfs_header_generation(eb) == parent_transid)
return 0;
@ -690,7 +709,7 @@ static int btree_io_failed_hook(struct page *page, int failed_mirror)
static void end_workqueue_bio(struct bio *bio, int err)
{
struct end_io_wq *end_io_wq = bio->bi_private;
struct btrfs_end_io_wq *end_io_wq = bio->bi_private;
struct btrfs_fs_info *fs_info;
struct btrfs_workqueue *wq;
btrfs_work_func_t func;
@ -733,20 +752,12 @@ static void end_workqueue_bio(struct bio *bio, int err)
btrfs_queue_work(wq, &end_io_wq->work);
}
/*
* For the metadata arg you want
*
* 0 - if data
* 1 - if normal metadta
* 2 - if writing to the free space cache area
* 3 - raid parity work
*/
int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
int metadata)
enum btrfs_wq_endio_type metadata)
{
struct end_io_wq *end_io_wq;
struct btrfs_end_io_wq *end_io_wq;
end_io_wq = kmalloc(sizeof(*end_io_wq), GFP_NOFS);
end_io_wq = kmem_cache_alloc(btrfs_end_io_wq_cache, GFP_NOFS);
if (!end_io_wq)
return -ENOMEM;
@ -930,7 +941,7 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
* can happen in the async kernel threads
*/
ret = btrfs_bio_wq_end_io(BTRFS_I(inode)->root->fs_info,
bio, 1);
bio, BTRFS_WQ_ENDIO_METADATA);
if (ret)
goto out_w_error;
ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio,
@ -1119,11 +1130,9 @@ struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root,
struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
u64 bytenr, u32 blocksize)
{
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state)))
if (btrfs_test_is_dummy_root(root))
return alloc_test_extent_buffer(root->fs_info, bytenr,
blocksize);
#endif
return alloc_extent_buffer(root->fs_info, bytenr, blocksize);
}
@ -1731,16 +1740,16 @@ static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi)
static void end_workqueue_fn(struct btrfs_work *work)
{
struct bio *bio;
struct end_io_wq *end_io_wq;
struct btrfs_end_io_wq *end_io_wq;
int error;
end_io_wq = container_of(work, struct end_io_wq, work);
end_io_wq = container_of(work, struct btrfs_end_io_wq, work);
bio = end_io_wq->bio;
error = end_io_wq->error;
bio->bi_private = end_io_wq->private;
bio->bi_end_io = end_io_wq->end_io;
kfree(end_io_wq);
kmem_cache_free(btrfs_end_io_wq_cache, end_io_wq);
bio_endio_nodec(bio, error);
}
@ -2260,7 +2269,7 @@ int open_ctree(struct super_block *sb,
atomic_set(&fs_info->qgroup_op_seq, 0);
atomic64_set(&fs_info->tree_mod_seq, 0);
fs_info->sb = sb;
fs_info->max_inline = 8192 * 1024;
fs_info->max_inline = BTRFS_DEFAULT_MAX_INLINE;
fs_info->metadata_ratio = 0;
fs_info->defrag_inodes = RB_ROOT;
fs_info->free_chunk_space = 0;

6
fs/btrfs/disk-io.h
View File

@ -25,7 +25,7 @@
#define BTRFS_SUPER_MIRROR_MAX 3
#define BTRFS_SUPER_MIRROR_SHIFT 12
enum {
enum btrfs_wq_endio_type {
BTRFS_WQ_ENDIO_DATA = 0,
BTRFS_WQ_ENDIO_METADATA = 1,
BTRFS_WQ_ENDIO_FREE_SPACE = 2,
@ -120,7 +120,7 @@ int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid);
u32 btrfs_csum_data(char *data, u32 seed, size_t len);
void btrfs_csum_final(u32 crc, char *result);
int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
int metadata);
enum btrfs_wq_endio_type metadata);
int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
int rw, struct bio *bio, int mirror_num,
unsigned long bio_flags, u64 bio_offset,
@ -142,6 +142,8 @@ int btree_lock_page_hook(struct page *page, void *data,
void (*flush_fn)(void *));
int btrfs_calc_num_tolerated_disk_barrier_failures(
struct btrfs_fs_info *fs_info);
int __init btrfs_end_io_wq_init(void);
void btrfs_end_io_wq_exit(void);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
void btrfs_init_lockdep(void);

16
fs/btrfs/extent-tree.c
View File

@ -3073,10 +3073,10 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
int (*process_func)(struct btrfs_trans_handle *, struct btrfs_root *,
u64, u64, u64, u64, u64, u64, int);
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state)))
if (btrfs_test_is_dummy_root(root))
return 0;
#endif
ref_root = btrfs_header_owner(buf);
nritems = btrfs_header_nritems(buf);
level = btrfs_header_level(buf);
@ -6264,10 +6264,9 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root,
int ret;
struct btrfs_fs_info *fs_info = root->fs_info;
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state)))
if (btrfs_test_is_dummy_root(root))
return 0;
#endif
add_pinned_bytes(root->fs_info, num_bytes, owner, root_objectid);
/*
@ -7338,15 +7337,14 @@ struct extent_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
bool skinny_metadata = btrfs_fs_incompat(root->fs_info,
SKINNY_METADATA);
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state))) {
if (btrfs_test_is_dummy_root(root)) {
buf = btrfs_init_new_buffer(trans, root, root->alloc_bytenr,
blocksize, level);
if (!IS_ERR(buf))
root->alloc_bytenr += blocksize;
return buf;
}
#endif
block_rsv = use_block_rsv(trans, root, blocksize);
if (IS_ERR(block_rsv))
return ERR_CAST(block_rsv);

66
fs/btrfs/extent_io.c
View File

@ -2064,7 +2064,7 @@ int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb,
return -EROFS;
for (i = 0; i < num_pages; i++) {
struct page *p = extent_buffer_page(eb, i);
struct page *p = eb->pages[i];
ret = repair_io_failure(root->fs_info->btree_inode, start,
PAGE_CACHE_SIZE, start, p,
@ -3580,7 +3580,7 @@ lock_extent_buffer_for_io(struct extent_buffer *eb,
num_pages = num_extent_pages(eb->start, eb->len);
for (i = 0; i < num_pages; i++) {
struct page *p = extent_buffer_page(eb, i);
struct page *p = eb->pages[i];
if (!trylock_page(p)) {
if (!flush) {
@ -3712,7 +3712,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
bio_flags = EXTENT_BIO_TREE_LOG;
for (i = 0; i < num_pages; i++) {
struct page *p = extent_buffer_page(eb, i);
struct page *p = eb->pages[i];
clear_page_dirty_for_io(p);
set_page_writeback(p);
@ -3736,7 +3736,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
if (unlikely(ret)) {
for (; i < num_pages; i++) {
struct page *p = extent_buffer_page(eb, i);
struct page *p = eb->pages[i];
clear_page_dirty_for_io(p);
unlock_page(p);
}
@ -4512,24 +4512,21 @@ int extent_buffer_under_io(struct extent_buffer *eb)
/*
* Helper for releasing extent buffer page.
*/
static void btrfs_release_extent_buffer_page(struct extent_buffer *eb,
unsigned long start_idx)
static void btrfs_release_extent_buffer_page(struct extent_buffer *eb)
{
unsigned long index;
unsigned long num_pages;
struct page *page;
int mapped = !test_bit(EXTENT_BUFFER_DUMMY, &eb->bflags);
BUG_ON(extent_buffer_under_io(eb));
num_pages = num_extent_pages(eb->start, eb->len);
index = start_idx + num_pages;
if (start_idx >= index)
index = num_extent_pages(eb->start, eb->len);
if (index == 0)
return;
do {
index--;
page = extent_buffer_page(eb, index);
page = eb->pages[index];
if (page && mapped) {
spin_lock(&page->mapping->private_lock);
/*
@ -4560,7 +4557,7 @@ static void btrfs_release_extent_buffer_page(struct extent_buffer *eb,
/* One for when we alloced the page */
page_cache_release(page);
}
} while (index != start_idx);
} while (index != 0);
}
/*
@ -4568,7 +4565,7 @@ static void btrfs_release_extent_buffer_page(struct extent_buffer *eb,
*/
static inline void btrfs_release_extent_buffer(struct extent_buffer *eb)
{
btrfs_release_extent_buffer_page(eb, 0);
btrfs_release_extent_buffer_page(eb);
__free_extent_buffer(eb);
}
@ -4711,7 +4708,8 @@ static void mark_extent_buffer_accessed(struct extent_buffer *eb,
num_pages = num_extent_pages(eb->start, eb->len);
for (i = 0; i < num_pages; i++) {
struct page *p = extent_buffer_page(eb, i);
struct page *p = eb->pages[i];
if (p != accessed)
mark_page_accessed(p);
}
@ -4880,7 +4878,7 @@ again:
*/
SetPageChecked(eb->pages[0]);
for (i = 1; i < num_pages; i++) {
p = extent_buffer_page(eb, i);
p = eb->pages[i];
ClearPageChecked(p);
unlock_page(p);
}
@ -4925,7 +4923,7 @@ static int release_extent_buffer(struct extent_buffer *eb)
}
/* Should be safe to release our pages at this point */
btrfs_release_extent_buffer_page(eb, 0);
btrfs_release_extent_buffer_page(eb);
call_rcu(&eb->rcu_head, btrfs_release_extent_buffer_rcu);
return 1;
}
@ -4991,7 +4989,7 @@ void clear_extent_buffer_dirty(struct extent_buffer *eb)
num_pages = num_extent_pages(eb->start, eb->len);
for (i = 0; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
if (!PageDirty(page))
continue;
@ -5027,7 +5025,7 @@ int set_extent_buffer_dirty(struct extent_buffer *eb)
WARN_ON(!test_bit(EXTENT_BUFFER_TREE_REF, &eb->bflags));
for (i = 0; i < num_pages; i++)
set_page_dirty(extent_buffer_page(eb, i));
set_page_dirty(eb->pages[i]);
return was_dirty;
}
@ -5040,7 +5038,7 @@ int clear_extent_buffer_uptodate(struct extent_buffer *eb)
clear_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags);
num_pages = num_extent_pages(eb->start, eb->len);
for (i = 0; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
if (page)
ClearPageUptodate(page);
}
@ -5056,7 +5054,7 @@ int set_extent_buffer_uptodate(struct extent_buffer *eb)
set_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags);
num_pages = num_extent_pages(eb->start, eb->len);
for (i = 0; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
SetPageUptodate(page);
}
return 0;
@ -5096,7 +5094,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
num_pages = num_extent_pages(eb->start, eb->len);
for (i = start_i; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
if (wait == WAIT_NONE) {
if (!trylock_page(page))
goto unlock_exit;
@ -5119,7 +5117,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
eb->read_mirror = 0;
atomic_set(&eb->io_pages, num_reads);
for (i = start_i; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
if (!PageUptodate(page)) {
ClearPageError(page);
err = __extent_read_full_page(tree, page,
@ -5144,7 +5142,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
return ret;
for (i = start_i; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
wait_on_page_locked(page);
if (!PageUptodate(page))
ret = -EIO;
@ -5155,7 +5153,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
unlock_exit:
i = start_i;
while (locked_pages > 0) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
i++;
unlock_page(page);
locked_pages--;
@ -5181,7 +5179,7 @@ void read_extent_buffer(struct extent_buffer *eb, void *dstv,
offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
while (len > 0) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
cur = min(len, (PAGE_CACHE_SIZE - offset));
kaddr = page_address(page);
@ -5213,7 +5211,7 @@ int read_extent_buffer_to_user(struct extent_buffer *eb, void __user *dstv,
offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
while (len > 0) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
cur = min(len, (PAGE_CACHE_SIZE - offset));
kaddr = page_address(page);
@ -5262,7 +5260,7 @@ int map_private_extent_buffer(struct extent_buffer *eb, unsigned long start,
return -EINVAL;
}
p = extent_buffer_page(eb, i);
p = eb->pages[i];
kaddr = page_address(p);
*map = kaddr + offset;
*map_len = PAGE_CACHE_SIZE - offset;
@ -5288,7 +5286,7 @@ int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv,
offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
while (len > 0) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
cur = min(len, (PAGE_CACHE_SIZE - offset));
@ -5322,7 +5320,7 @@ void write_extent_buffer(struct extent_buffer *eb, const void *srcv,
offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
while (len > 0) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
WARN_ON(!PageUptodate(page));
cur = min(len, PAGE_CACHE_SIZE - offset);
@ -5352,7 +5350,7 @@ void memset_extent_buffer(struct extent_buffer *eb, char c,
offset = (start_offset + start) & (PAGE_CACHE_SIZE - 1);
while (len > 0) {
page = extent_buffer_page(eb, i);
page = eb->pages[i];
WARN_ON(!PageUptodate(page));
cur = min(len, PAGE_CACHE_SIZE - offset);
@ -5383,7 +5381,7 @@ void copy_extent_buffer(struct extent_buffer *dst, struct extent_buffer *src,
(PAGE_CACHE_SIZE - 1);
while (len > 0) {
page = extent_buffer_page(dst, i);
page = dst->pages[i];
WARN_ON(!PageUptodate(page));
cur = min(len, (unsigned long)(PAGE_CACHE_SIZE - offset));
@ -5461,8 +5459,7 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
cur = min_t(unsigned long, cur,
(unsigned long)(PAGE_CACHE_SIZE - dst_off_in_page));
copy_pages(extent_buffer_page(dst, dst_i),
extent_buffer_page(dst, src_i),
copy_pages(dst->pages[dst_i], dst->pages[src_i],
dst_off_in_page, src_off_in_page, cur);
src_offset += cur;
@ -5508,8 +5505,7 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
cur = min_t(unsigned long, len, src_off_in_page + 1);
cur = min(cur, dst_off_in_page + 1);
copy_pages(extent_buffer_page(dst, dst_i),
extent_buffer_page(dst, src_i),
copy_pages(dst->pages[dst_i], dst->pages[src_i],
dst_off_in_page - cur + 1,
src_off_in_page - cur + 1, cur);

10
fs/btrfs/extent_io.h
View File

@ -11,8 +11,6 @@
#define EXTENT_NEW (1 << 4)
#define EXTENT_DELALLOC (1 << 5)
#define EXTENT_DEFRAG (1 << 6)
#define EXTENT_DEFRAG_DONE (1 << 7)
#define EXTENT_BUFFER_FILLED (1 << 8)
#define EXTENT_BOUNDARY (1 << 9)
#define EXTENT_NODATASUM (1 << 10)
#define EXTENT_DO_ACCOUNTING (1 << 11)
@ -34,7 +32,6 @@
/* these are bit numbers for test/set bit */
#define EXTENT_BUFFER_UPTODATE 0
#define EXTENT_BUFFER_BLOCKING 1
#define EXTENT_BUFFER_DIRTY 2
#define EXTENT_BUFFER_CORRUPT 3
#define EXTENT_BUFFER_READAHEAD 4 /* this got triggered by readahead */
@ -58,7 +55,6 @@
* map has page->private set to one.
*/
#define EXTENT_PAGE_PRIVATE 1
#define EXTENT_PAGE_PRIVATE_FIRST_PAGE 3
struct extent_state;
struct btrfs_root;
@ -286,12 +282,6 @@ static inline unsigned long num_extent_pages(u64 start, u64 len)
(start >> PAGE_CACHE_SHIFT);
}
static inline struct page *extent_buffer_page(struct extent_buffer *eb,
unsigned long i)
{
return eb->pages[i];
}
static inline void extent_buffer_get(struct extent_buffer *eb)
{
atomic_inc(&eb->refs);

3
fs/btrfs/inode.c
View File

@ -7721,7 +7721,8 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
bio_get(bio);
if (!write) {
ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
ret = btrfs_bio_wq_end_io(root->fs_info, bio,
BTRFS_WQ_ENDIO_DATA);
if (ret)
goto err;
}

8
fs/btrfs/ioctl.c
View File

@ -885,7 +885,7 @@ out_unlock:
* file you want to defrag, we return 0 to let you know to skip this
* part of the file
*/
static int check_defrag_in_cache(struct inode *inode, u64 offset, int thresh)
static int check_defrag_in_cache(struct inode *inode, u64 offset, u32 thresh)
{
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct extent_map *em = NULL;
@ -920,7 +920,7 @@ static int check_defrag_in_cache(struct inode *inode, u64 offset, int thresh)
*/
static int find_new_extents(struct btrfs_root *root,
struct inode *inode, u64 newer_than,
u64 *off, int thresh)
u64 *off, u32 thresh)
{
struct btrfs_path *path;
struct btrfs_key min_key;
@ -1029,7 +1029,7 @@ static bool defrag_check_next_extent(struct inode *inode, struct extent_map *em)
return ret;
}
static int should_defrag_range(struct inode *inode, u64 start, int thresh,
static int should_defrag_range(struct inode *inode, u64 start, u32 thresh,
u64 *last_len, u64 *skip, u64 *defrag_end,
int compress)
{
@ -1259,7 +1259,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
int ret;
int defrag_count = 0;
int compress_type = BTRFS_COMPRESS_ZLIB;
int extent_thresh = range->extent_thresh;
u32 extent_thresh = range->extent_thresh;
unsigned long max_cluster = (256 * 1024) >> PAGE_CACHE_SHIFT;
unsigned long cluster = max_cluster;
u64 new_align = ~((u64)128 * 1024 - 1);

10
fs/btrfs/qgroup.c
View File

@ -539,10 +539,9 @@ static int add_qgroup_item(struct btrfs_trans_handle *trans,
struct extent_buffer *leaf;
struct btrfs_key key;
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &quota_root->state)))
if (btrfs_test_is_dummy_root(quota_root))
return 0;
#endif
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@ -698,10 +697,9 @@ static int update_qgroup_info_item(struct btrfs_trans_handle *trans,
int ret;
int slot;
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state)))
if (btrfs_test_is_dummy_root(root))
return 0;
#endif
key.objectid = 0;
key.type = BTRFS_QGROUP_INFO_KEY;
key.offset = qgroup->qgroupid;

3
fs/btrfs/relocation.c
View File

@ -2349,7 +2349,7 @@ void free_reloc_roots(struct list_head *list)
}
static noinline_for_stack
int merge_reloc_roots(struct reloc_control *rc)
void merge_reloc_roots(struct reloc_control *rc)
{
struct btrfs_root *root;
struct btrfs_root *reloc_root;
@ -2430,7 +2430,6 @@ out:
}
BUG_ON(!RB_EMPTY_ROOT(&rc->reloc_root_tree.rb_root));
return ret;
}
static void free_block_list(struct rb_root *blocks)

17
fs/btrfs/scrub.c
View File

@ -177,17 +177,12 @@ struct scrub_copy_nocow_ctx {
struct scrub_warning {
struct btrfs_path *path;
u64 extent_item_size;
char *scratch_buf;
char *msg_buf;
const char *errstr;
sector_t sector;
u64 logical;
struct btrfs_device *dev;
int msg_bufsize;
int scratch_bufsize;
};
static void scrub_pending_bio_inc(struct scrub_ctx *sctx);
static void scrub_pending_bio_dec(struct scrub_ctx *sctx);
static void scrub_pending_trans_workers_inc(struct scrub_ctx *sctx);
@ -551,7 +546,6 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
u64 ref_root;
u32 item_size;
u8 ref_level;
const int bufsize = 4096;
int ret;
WARN_ON(sblock->page_count < 1);
@ -559,18 +553,13 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
fs_info = sblock->sctx->dev_root->fs_info;
path = btrfs_alloc_path();
if (!path)
return;
swarn.scratch_buf = kmalloc(bufsize, GFP_NOFS);
swarn.msg_buf = kmalloc(bufsize, GFP_NOFS);
swarn.sector = (sblock->pagev[0]->physical) >> 9;
swarn.logical = sblock->pagev[0]->logical;
swarn.errstr = errstr;
swarn.dev = NULL;
swarn.msg_bufsize = bufsize;
swarn.scratch_bufsize = bufsize;
if (!path || !swarn.scratch_buf || !swarn.msg_buf)
goto out;
ret = extent_from_logical(fs_info, swarn.logical, path, &found_key,
&flags);
@ -611,8 +600,6 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
out:
btrfs_free_path(path);
kfree(swarn.scratch_buf);
kfree(swarn.msg_buf);
}
static int scrub_fixup_readpage(u64 inum, u64 offset, u64 root, void *fixup_ctx)

2
fs/btrfs/send.c
View File

@ -5728,7 +5728,7 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
NULL);
sort_clone_roots = 1;
current->journal_info = (void *)BTRFS_SEND_TRANS_STUB;
current->journal_info = BTRFS_SEND_TRANS_STUB;
ret = send_subvol(sctx);
current->journal_info = NULL;
if (ret < 0)

14
fs/btrfs/super.c
View File

@ -395,7 +395,6 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
int ret = 0;
char *compress_type;
bool compress_force = false;
bool compress = false;
cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy);
if (cache_gen)
@ -473,7 +472,6 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
/* Fallthrough */
case Opt_compress:
case Opt_compress_type:
compress = true;
if (token == Opt_compress ||
token == Opt_compress_force ||
strcmp(args[0].from, "zlib") == 0) {
@ -503,7 +501,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
btrfs_set_and_info(root, FORCE_COMPRESS,
"force %s compression",
compress_type);
} else if (compress) {
} else {
if (!btrfs_test_opt(root, COMPRESS))
btrfs_info(root->fs_info,
"btrfs: use %s compression",
@ -1016,7 +1014,7 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
seq_puts(seq, ",nodatacow");
if (btrfs_test_opt(root, NOBARRIER))
seq_puts(seq, ",nobarrier");
if (info->max_inline != 8192 * 1024)
if (info->max_inline != BTRFS_DEFAULT_MAX_INLINE)
seq_printf(seq, ",max_inline=%llu", info->max_inline);
if (info->alloc_start != 0)
seq_printf(seq, ",alloc_start=%llu", info->alloc_start);
@ -2000,12 +1998,16 @@ static int __init init_btrfs_fs(void)
goto free_auto_defrag;
err = btrfs_prelim_ref_init();
if (err)
goto free_delayed_ref;
err = btrfs_end_io_wq_init();
if (err)
goto free_prelim_ref;
err = btrfs_interface_init();
if (err)
goto free_delayed_ref;
goto free_end_io_wq;
btrfs_init_lockdep();
@ -2023,6 +2025,8 @@ static int __init init_btrfs_fs(void)
unregister_ioctl:
btrfs_interface_exit();
free_end_io_wq:
btrfs_end_io_wq_exit();
free_prelim_ref:
btrfs_prelim_ref_exit();
free_delayed_ref:

2
fs/btrfs/transaction.c
View File

@ -386,7 +386,7 @@ start_transaction(struct btrfs_root *root, u64 num_items, unsigned int type,
int ret;
/* Send isn't supposed to start transactions. */
ASSERT(current->journal_info != (void *)BTRFS_SEND_TRANS_STUB);
ASSERT(current->journal_info != BTRFS_SEND_TRANS_STUB);
if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
return ERR_PTR(-EROFS);

2
fs/btrfs/transaction.h
View File

@ -79,7 +79,7 @@ struct btrfs_transaction {
#define TRANS_EXTWRITERS (__TRANS_USERSPACE | __TRANS_START | \
__TRANS_ATTACH)
#define BTRFS_SEND_TRANS_STUB 1
#define BTRFS_SEND_TRANS_STUB ((void *)1)
struct btrfs_trans_handle {
u64 transid;