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authorDavid Sterba <dsterba@suse.com>2023-09-14 17:45:41 +0300
committerDavid Sterba <dsterba@suse.com>2024-03-04 18:24:49 +0300
commit41044b41ad2c8c8165a42ec6e9a4096826dcf153 (patch)
tree9c99810f8a8fe29a29410a0b4170c708763e00e4 /fs/btrfs/compression.c
parentb33d2e535f9b2a1c4210cfc4843ac0dbacbeebcc (diff)
downloadlinux-41044b41ad2c8c8165a42ec6e9a4096826dcf153.tar.xz
btrfs: add helper to get fs_info from struct inode pointer
Add a convenience helper to get a fs_info from a VFS inode 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 btrfs_inode, btrfs_root or btrfs_fs_info. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/compression.c')
-rw-r--r--fs/btrfs/compression.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 9cae8542c7e0..0b8833baf404 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -281,7 +281,7 @@ static void end_bbio_comprssed_read(struct btrfs_bio *bbio)
static noinline void end_compressed_writeback(const struct compressed_bio *cb)
{
struct inode *inode = &cb->bbio.inode->vfs_inode;
- struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_fs_info *fs_info = inode_to_fs_info(inode);
unsigned long index = cb->start >> PAGE_SHIFT;
unsigned long end_index = (cb->start + cb->len - 1) >> PAGE_SHIFT;
struct folio_batch fbatch;
@@ -412,7 +412,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
struct compressed_bio *cb,
int *memstall, unsigned long *pflags)
{
- struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_fs_info *fs_info = inode_to_fs_info(inode);
unsigned long end_index;
struct bio *orig_bio = &cb->orig_bbio->bio;
u64 cur = cb->orig_bbio->file_offset + orig_bio->bi_iter.bi_size;
@@ -438,7 +438,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
* This makes readahead less effective, so here disable readahead for
* subpage for now, until full compressed write is supported.
*/
- if (btrfs_sb(inode->i_sb)->sectorsize < PAGE_SIZE)
+ if (fs_info->sectorsize < PAGE_SIZE)
return 0;
end_index = (i_size_read(inode) - 1) >> PAGE_SHIFT;