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| author | David Sterba <dsterba@suse.com> | 2017-02-14 19:04:07 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-02-28 14:26:35 +0100 |
| commit | 38c31464089f639630b7c28ce933a4d60e135a02 (patch) | |
| tree | fd39ede7261635ac2f47ece7139c668820cf9db0 /fs/btrfs/zlib.c | |
| parent | 52f75f4fe74ce86376d68b30c94d5fb11cb4019e (diff) | |
| download | linux-38c31464089f639630b7c28ce933a4d60e135a02.tar.gz | |
btrfs: merge length input and output parameter in compress_pages
The length parameter is basically duplicated for input and output in the top level caller of the compress_pages chain. We can simply use one variable for that and reduce stack consumption. The compression implementation will sink the parameter to a local variable so everything works as before. Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/zlib.c')
| -rw-r--r-- | fs/btrfs/zlib.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c index da497f184ff4..42d76b7824c3 100644 --- a/fs/btrfs/zlib.c +++ b/fs/btrfs/zlib.c @@ -73,7 +73,7 @@ fail: static int zlib_compress_pages(struct list_head *ws, struct address_space *mapping, - u64 start, unsigned long len, + u64 start, struct page **pages, unsigned long nr_dest_pages, unsigned long *out_pages, @@ -89,6 +89,7 @@ static int zlib_compress_pages(struct list_head *ws, struct page *in_page = NULL; struct page *out_page = NULL; unsigned long bytes_left; + unsigned long len = *total_out; *out_pages = 0; *total_out = 0; |