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| author | David Sterba <dsterba@suse.com> | 2020-06-30 02:01:31 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-12-08 15:53:59 +0100 |
| commit | 55fc29bed8ddb4c3848ecf8cf7133e34c946f223 (patch) | |
| tree | c7174086f876963be22ca15e63e05560378d4518 /fs/btrfs/btrfs_inode.h | |
| parent | btrfs: precalculate checksums per leaf once (diff) | |
| download | linux-55fc29bed8ddb4c3848ecf8cf7133e34c946f223.tar.xz linux-55fc29bed8ddb4c3848ecf8cf7133e34c946f223.zip | |
btrfs: use cached value of fs_info::csum_size everywhere
btrfs_get_16 shows up in the system performance profiles (helper to read
16bit values from on-disk structures). This is partially because of the
checksum size that's frequently read along with data reads/writes, other
u16 uses are from item size or directory entries.
Replace all calls to btrfs_super_csum_size by the cached value from
fs_info.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/btrfs_inode.h')
| -rw-r--r-- | fs/btrfs/btrfs_inode.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index 16c50a438f70..a31b7e32dd60 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -331,8 +331,7 @@ static inline void btrfs_print_data_csum_error(struct btrfs_inode *inode, u64 logical_start, u8 *csum, u8 *csum_expected, int mirror_num) { struct btrfs_root *root = inode->root; - struct btrfs_super_block *sb = root->fs_info->super_copy; - const u16 csum_size = btrfs_super_csum_size(sb); + const u16 csum_size = root->fs_info->csum_size; /* Output minus objectid, which is more meaningful */ if (root->root_key.objectid >= BTRFS_LAST_FREE_OBJECTID) |