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authorDavid Sterba <dsterba@suse.com>2017-02-14 19:45:05 +0100
committerDavid Sterba <dsterba@suse.com>2017-02-28 14:26:36 +0100
commite5d74902362f1a06ea3674042d09f1af178c0a20 (patch)
tree18b3bf38ac7e1d72923e423156f5e1843317f695 /fs/btrfs/compression.c
parent069eac7850890acf0d3c21a6c8ca9f33ddb34a0d (diff)
downloadlinux-e5d74902362f1a06ea3674042d09f1af178c0a20.tar.gz
btrfs: derive maximum output size in the compression implementation
The value of max_out can be calculated from the parameters passed to the
compressors, which is number of pages and the page size, and we don't
have to needlessly pass it around.

Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/compression.c')
-rw-r--r--fs/btrfs/compression.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 11dcda57e15c..c7721a6aa3bb 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -932,8 +932,7 @@ int btrfs_compress_pages(int type, struct address_space *mapping,
 			 u64 start, struct page **pages,
 			 unsigned long *out_pages,
 			 unsigned long *total_in,
-			 unsigned long *total_out,
-			 unsigned long max_out)
+			 unsigned long *total_out)
 {
 	struct list_head *workspace;
 	int ret;
@@ -943,8 +942,7 @@ int btrfs_compress_pages(int type, struct address_space *mapping,
 	ret = btrfs_compress_op[type-1]->compress_pages(workspace, mapping,
 						      start, pages,
 						      out_pages,
-						      total_in, total_out,
-						      max_out);
+						      total_in, total_out);
 	free_workspace(type, workspace);
 	return ret;
 }