On Mon, 2016-02-22 at 00:26 +0100, Philippe Loctaux wrote:
> Added line after variable declaration, fixing checkpatch warning.
[]
> diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
[]
> @@ -522,6 +522,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
>
> if (zero_offset) {
> int zeros;
> +
> zeros = PAGE_CACHE_SIZE - zero_offset;
> userpage = kmap_atomic(page);
> memset(userpage + zero_offset, 0, zeros);
This zeros temporary is used once.
Perhaps it should just be removed instead.
Maybe the userpage declaration should move too.
Something like:
---
fs/btrfs/compression.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 3346cd8..be41f83 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -517,14 +517,13 @@ static noinline int add_ra_bio_pages(struct inode *inode,
free_extent_map(em);
if (page->index == end_index) {
- char *userpage;
size_t zero_offset = isize & (PAGE_CACHE_SIZE - 1);
if (zero_offset) {
- int zeros;
- zeros = PAGE_CACHE_SIZE - zero_offset;
- userpage = kmap_atomic(page);
- memset(userpage + zero_offset, 0, zeros);
+ char *userpage = kmap_atomic(page);
+
+ memset(userpage + zero_offset, 0,
+ PAGE_CACHE_SIZE - zero_offset);
flush_dcache_page(page);
kunmap_atomic(userpage);
}
--
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