[PATCH v2] fs/ext4: replace ternary operator with min() and max()

Jiangshan Yi posted 1 patch 3 years, 7 months ago
fs/ext4/extents.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
[PATCH v2] fs/ext4: replace ternary operator with min() and max()
Posted by Jiangshan Yi 3 years, 7 months ago
From: Jiangshan Yi <yijiangshan@kylinos.cn>

Fix the following coccicheck warning:

fs/ext4/extents.c:2631: WARNING opportunity for max().
fs/ext4/extents.c:2632: WARNING opportunity for min().

min() and max() macro is defined in include/linux/minmax.h. It avoids
multiple evaluations of the arguments when non-constant and performs
strict type-checking.

Suggested-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Jiangshan Yi <yijiangshan@kylinos.cn>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
---
 fs/ext4/extents.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index c148bb97b527..fabace690318 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2628,9 +2628,8 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
 			  unwritten, ex_ee_len);
 		path[depth].p_ext = ex;
 
-		a = ex_ee_block > start ? ex_ee_block : start;
-		b = ex_ee_block+ex_ee_len - 1 < end ?
-			ex_ee_block+ex_ee_len - 1 : end;
+		a = max(ex_ee_block, start);
+		b = min(ex_ee_block + ex_ee_len - 1, end);
 
 		ext_debug(inode, "  border %u:%u\n", a, b);
 
-- 
2.25.1


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