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btrfs: make extent_fiemap take btrfs_inode 

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2020-08-31 14:42:49 +03:00 committed by David Sterba
parent 948dfeb86b
commit facee0a09c
3 changed files with 15 additions and 17 deletions
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28
fs/btrfs/extent_io.c
View File

@ -4696,7 +4696,7 @@ static int emit_last_fiemap_cache(struct fiemap_extent_info *fieinfo,
return ret;
}
int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len)
{
int ret = 0;
@ -4707,12 +4707,12 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 last;
u64 last_for_get_extent = 0;
u64 disko = 0;
u64 isize = i_size_read(inode);
u64 isize = i_size_read(&inode->vfs_inode);
struct btrfs_key found_key;
struct extent_map *em = NULL;
struct extent_state *cached_state = NULL;
struct btrfs_path *path;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_root *root = inode->root;
struct fiemap_cache cache = { 0 };
struct ulist *roots;
struct ulist *tmp_ulist;
@ -4736,15 +4736,15 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
goto out_free_ulist;
}
start = round_down(start, btrfs_inode_sectorsize(BTRFS_I(inode)));
len = round_up(max, btrfs_inode_sectorsize(BTRFS_I(inode))) - start;
start = round_down(start, btrfs_inode_sectorsize(inode));
len = round_up(max, btrfs_inode_sectorsize(inode)) - start;
/*
* lookup the last file extent. We're not using i_size here
* because there might be preallocation past i_size
*/
ret = btrfs_lookup_file_extent(NULL, root, path,
btrfs_ino(BTRFS_I(inode)), -1, 0);
ret = btrfs_lookup_file_extent(NULL, root, path, btrfs_ino(inode), -1,
0);
if (ret < 0) {
goto out_free_ulist;
} else {
@ -4758,7 +4758,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
found_type = found_key.type;
/* No extents, but there might be delalloc bits */
if (found_key.objectid != btrfs_ino(BTRFS_I(inode)) ||
if (found_key.objectid != btrfs_ino(inode) ||
found_type != BTRFS_EXTENT_DATA_KEY) {
/* have to trust i_size as the end */
last = (u64)-1;
@ -4784,10 +4784,10 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
last_for_get_extent = isize;
}
lock_extent_bits(&BTRFS_I(inode)->io_tree, start, start + len - 1,
lock_extent_bits(&inode->io_tree, start, start + len - 1,
&cached_state);
em = get_extent_skip_holes(BTRFS_I(inode), start, last_for_get_extent);
em = get_extent_skip_holes(inode, start, last_for_get_extent);
if (!em)
goto out;
if (IS_ERR(em)) {
@ -4853,8 +4853,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
* then we're just getting a count and we can skip the
* lookup stuff.
*/
ret = btrfs_check_shared(root,
btrfs_ino(BTRFS_I(inode)),
ret = btrfs_check_shared(root, btrfs_ino(inode),
bytenr, roots, tmp_ulist);
if (ret < 0)
goto out_free;
@ -4876,8 +4875,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
}
/* now scan forward to see if this is really the last extent. */
em = get_extent_skip_holes(BTRFS_I(inode), off,
last_for_get_extent);
em = get_extent_skip_holes(inode, off, last_for_get_extent);
if (IS_ERR(em)) {
ret = PTR_ERR(em);
goto out;
@ -4899,7 +4897,7 @@ out_free:
ret = emit_last_fiemap_cache(fieinfo, &cache);
free_extent_map(em);
out:
unlock_extent_cached(&BTRFS_I(inode)->io_tree, start, start + len - 1,
unlock_extent_cached(&inode->io_tree, start, start + len - 1,
&cached_state);
out_free_ulist:

2
fs/btrfs/extent_io.h
View File

@ -203,7 +203,7 @@ int extent_writepages(struct address_space *mapping,
int btree_write_cache_pages(struct address_space *mapping,
struct writeback_control *wbc);
void extent_readahead(struct readahead_control *rac);
int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len);
void set_page_extent_mapped(struct page *page);

2
fs/btrfs/inode.c
View File

@ -8035,7 +8035,7 @@ static int btrfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
if (ret)
return ret;
return extent_fiemap(inode, fieinfo, start, len);
return extent_fiemap(BTRFS_I(inode), fieinfo, start, len);
}
int btrfs_readpage(struct file *file, struct page *page)