diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-03-29 09:13:05 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-04-06 16:34:13 +0200 |
| commit | 68d99ab0e9221ef54506f827576c5a914680eeaf (patch) | |
| tree | 6623b6e1eecc2f17a20d80f071d5c894161c120a /fs/btrfs/super.c | |
| parent | 40fac6472f22a59f5694496e179988ab4a1dfe07 (diff) | |
btrfs: fix fast csum implementation detection
The BTRFS_FS_CSUM_IMPL_FAST flag is currently set whenever a non-generic
crc32c is detected, which is the incorrect check if the file system uses
a different checksumming algorithm. Refactor the code to only check
this if crc32c is actually used. Note that in an ideal world the
information if an algorithm is hardware accelerated or not should be
provided by the crypto API instead, but that's left for another day.
CC: stable@vger.kernel.org # 5.4.x: c8a5f8ca9a9c: btrfs: print checksum type and implementation at mount time
CC: stable@vger.kernel.org # 5.4.x
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index dd6d5b6844f1..366fb4cde145 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1516,8 +1516,6 @@ static struct dentry *btrfs_mount_root(struct file_system_type *fs_type, shrinker_debugfs_rename(&s->s_shrink, "sb-%s:%s", fs_type->name, s->s_id); btrfs_sb(s)->bdev_holder = fs_type; - if (!strstr(crc32c_impl(), "generic")) - set_bit(BTRFS_FS_CSUM_IMPL_FAST, &fs_info->flags); error = btrfs_fill_super(s, fs_devices, data); } if (!error) |