diff options
| author | Nikolay Borisov <nborisov@suse.com> | 2019-07-17 14:41:44 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-09-09 14:58:59 +0200 |
| commit | ac3e99334d640b6dc8d2d8cbc57e080ba308b4c0 (patch) | |
| tree | 6f018e0666c7dd4df49f6250773fa19d501bfadd /fs/btrfs/inode.c | |
| parent | 40cf931fa81bedea08823dda9e6e73630db41b70 (diff) | |
btrfs: Return number of compressed extents directly in compress_file_range
compress_file_range returns a void, yet uses a function parameter as a
return value. Make that more idiomatic by simply returning the number
of compressed extents directly. Also track such extents in more aptly
named variables. No functional changes.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index ee582a36653d..db814f555b26 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -462,8 +462,7 @@ static inline void inode_should_defrag(struct btrfs_inode *inode, * are written in the same order that the flusher thread sent them * down. */ -static noinline void compress_file_range(struct async_chunk *async_chunk, - int *num_added) +static noinline int compress_file_range(struct async_chunk *async_chunk) { struct inode *inode = async_chunk->inode; struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); @@ -479,6 +478,7 @@ static noinline void compress_file_range(struct async_chunk *async_chunk, int i; int will_compress; int compress_type = fs_info->compress_type; + int compressed_extents = 0; int redirty = 0; inode_should_defrag(BTRFS_I(inode), start, end, end - start + 1, @@ -641,7 +641,7 @@ cont: */ total_in = ALIGN(total_in, PAGE_SIZE); if (total_compressed + blocksize <= total_in) { - *num_added += 1; + compressed_extents++; /* * The async work queues will take care of doing actual @@ -658,7 +658,7 @@ cont: cond_resched(); goto again; } - return; + return compressed_extents; } } if (pages) { @@ -697,9 +697,9 @@ cleanup_and_bail_uncompressed: extent_range_redirty_for_io(inode, start, end); add_async_extent(async_chunk, start, end - start + 1, 0, NULL, 0, BTRFS_COMPRESS_NONE); - *num_added += 1; + compressed_extents++; - return; + return compressed_extents; free_pages_out: for (i = 0; i < nr_pages; i++) { @@ -707,6 +707,8 @@ free_pages_out: put_page(pages[i]); } kfree(pages); + + return 0; } static void free_async_extent_pages(struct async_extent *async_extent) @@ -1144,12 +1146,12 @@ out_unlock: static noinline void async_cow_start(struct btrfs_work *work) { struct async_chunk *async_chunk; - int num_added = 0; + int compressed_extents; async_chunk = container_of(work, struct async_chunk, work); - compress_file_range(async_chunk, &num_added); - if (num_added == 0) { + compressed_extents = compress_file_range(async_chunk); + if (compressed_extents == 0) { btrfs_add_delayed_iput(async_chunk->inode); async_chunk->inode = NULL; } |