From e5d74902362f1a06ea3674042d09f1af178c0a20 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Tue, 14 Feb 2017 19:45:05 +0100 Subject: 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 --- fs/btrfs/zlib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/btrfs/zlib.c') diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c index e7f2020f8ee7..135b10823c6d 100644 --- a/fs/btrfs/zlib.c +++ b/fs/btrfs/zlib.c @@ -77,8 +77,7 @@ static int zlib_compress_pages(struct list_head *ws, struct page **pages, unsigned long *out_pages, unsigned long *total_in, - unsigned long *total_out, - unsigned long max_out) + unsigned long *total_out) { struct workspace *workspace = list_entry(ws, struct workspace, list); int ret; @@ -90,6 +89,7 @@ static int zlib_compress_pages(struct list_head *ws, unsigned long bytes_left; unsigned long len = *total_out; unsigned long nr_dest_pages = *out_pages; + const unsigned long max_out = nr_dest_pages * PAGE_SIZE; *out_pages = 0; *total_out = 0; -- cgit v1.2.3-70-g09d2