diff options
| author | David Sterba <dsterba@suse.com> | 2019-10-07 11:11:03 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-11-18 17:51:43 +0100 |
| commit | f7cea56c0fff95bd5a6cd21b9fa299f66193b604 (patch) | |
| tree | e59752010527d9314d500aec9542f17c98279092 /fs/btrfs/ctree.c | |
| parent | 3831bf0094abed51e71cbeca8b6edf8b88c2644b (diff) | |
btrfs: sysfs: export supported checksums
Export supported checksum algorithms via sysfs in the list of static
features:
/sys/fs/btrfs/features/supported_checksums
Space spearated list of checksum algorithm names.
Co-developed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ctree.c')
| -rw-r--r-- | fs/btrfs/ctree.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index bd6ea433ed65..c1561097e5a3 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -53,6 +53,11 @@ const char *btrfs_super_csum_name(u16 csum_type) return btrfs_csums[csum_type].name; } +size_t __const btrfs_get_num_csums(void) +{ + return ARRAY_SIZE(btrfs_csums); +} + struct btrfs_path *btrfs_alloc_path(void) { return kmem_cache_zalloc(btrfs_path_cachep, GFP_NOFS); |