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| author | David Sterba <dsterba@suse.com> | 2023-09-14 17:24:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-03 16:32:29 +0300 |
| commit | d9e95b0a3285b1a47e3aad011f6cfb8baf014d94 (patch) | |
| tree | 1c35a537c1a9f8a795c8de8f7d2c72f39fe99c42 /fs/btrfs/compression.c | |
| parent | 9d2ed098768453d38c28b2ec14ad53d5ab994c86 (diff) | |
| download | linux-d9e95b0a3285b1a47e3aad011f6cfb8baf014d94.tar.xz | |
btrfs: add helpers to get fs_info from page/folio pointers
[ Upstream commit b33d2e535f9b2a1c4210cfc4843ac0dbacbeebcc ]
Add convenience helpers to get a fs_info from a page or folio pointer
instead of open coding the chain or using btrfs_sb() that in some cases
does one more pointer hop. This is implemented as a macro (still with
type checking) so we don't need full definitions of struct page, folio,
btrfs_root and btrfs_fs_info. The latter can't be static inlines as this
would create loop between ctree.h <-> fs.h, or the headers would have to
be restructured.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Stable-dep-of: 86211eea8ae1 ("btrfs: qgroup: validate btrfs_qgroup_inherit parameter")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 68345f73d429..aeb3b2aa7331 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -1039,7 +1039,7 @@ static int btrfs_decompress_bio(struct compressed_bio *cb) int btrfs_decompress(int type, const u8 *data_in, struct page *dest_page, unsigned long dest_pgoff, size_t srclen, size_t destlen) { - struct btrfs_fs_info *fs_info = btrfs_sb(dest_page->mapping->host->i_sb); + struct btrfs_fs_info *fs_info = page_to_fs_info(dest_page); struct list_head *workspace; const u32 sectorsize = fs_info->sectorsize; int ret; |