diff options
| -rw-r--r-- | fs/btrfs/compression.h | 3 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h index 84600b284e1e..973530e9ce6c 100644 --- a/fs/btrfs/compression.h +++ b/fs/btrfs/compression.h @@ -36,6 +36,9 @@ struct btrfs_ordered_extent; #define BTRFS_MAX_COMPRESSED_PAGES (BTRFS_MAX_COMPRESSED / PAGE_SIZE) static_assert((BTRFS_MAX_COMPRESSED % PAGE_SIZE) == 0); +/* The max size for a single worker to compress. */ +#define BTRFS_COMPRESSION_CHUNK_SIZE (SZ_512K) + /* Maximum size of data before compression */ #define BTRFS_MAX_UNCOMPRESSED (SZ_128K) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index ea3746c14760..89ab33c5b940 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1691,7 +1691,7 @@ static bool run_delalloc_compressed(struct btrfs_inode *inode, struct async_cow *ctx; struct async_chunk *async_chunk; unsigned long nr_pages; - u64 num_chunks = DIV_ROUND_UP(end - start, SZ_512K); + u64 num_chunks = DIV_ROUND_UP(end - start, BTRFS_COMPRESSION_CHUNK_SIZE); int i; unsigned nofs_flag; const blk_opf_t write_flags = wbc_to_write_flags(wbc); @@ -1708,7 +1708,7 @@ static bool run_delalloc_compressed(struct btrfs_inode *inode, atomic_set(&ctx->num_chunks, num_chunks); for (i = 0; i < num_chunks; i++) { - u64 cur_end = min(end, start + SZ_512K - 1); + u64 cur_end = min(end, start + BTRFS_COMPRESSION_CHUNK_SIZE - 1); /* * igrab is called higher up in the call chain, take only the |