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| author | Josef Bacik <josef@toxicpanda.com> | 2019-06-20 22:37:48 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-09-09 15:59:04 +0300 |
| commit | 676f1f759fa3f65f8987295c99615c1090e074ea (patch) | |
| tree | c72e47dc48b58576df6a80bcb77a1b926622bd0c /fs/btrfs/block-group.h | |
| parent | 3eeb3226a8891544ea4a9baf27ba3d73e8a42991 (diff) | |
| download | linux-676f1f759fa3f65f8987295c99615c1090e074ea.tar.xz | |
btrfs: export the block group caching helpers
This will make it so we can move them easily.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ coding style updates ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/block-group.h')
| -rw-r--r-- | fs/btrfs/block-group.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h index 73147cce7952..7069bcfc5e8f 100644 --- a/fs/btrfs/block-group.h +++ b/fs/btrfs/block-group.h @@ -165,5 +165,18 @@ void btrfs_wait_block_group_reservations(struct btrfs_block_group_cache *bg); bool btrfs_inc_nocow_writers(struct btrfs_fs_info *fs_info, u64 bytenr); void btrfs_dec_nocow_writers(struct btrfs_fs_info *fs_info, u64 bytenr); void btrfs_wait_nocow_writers(struct btrfs_block_group_cache *bg); +void btrfs_wait_block_group_cache_progress(struct btrfs_block_group_cache *cache, + u64 num_bytes); +int btrfs_wait_block_group_cache_done(struct btrfs_block_group_cache *cache); +int btrfs_cache_block_group(struct btrfs_block_group_cache *cache, + int load_cache_only); + +static inline int btrfs_block_group_cache_done( + struct btrfs_block_group_cache *cache) +{ + smp_mb(); + return cache->cached == BTRFS_CACHE_FINISHED || + cache->cached == BTRFS_CACHE_ERROR; +} #endif /* BTRFS_BLOCK_GROUP_H */ |