From: Jiangshan Yi <yijiangshan@xxxxxxxxxx>
Fix the following coccicheck warning:
fs/ext4/inline.c:183: WARNING opportunity for min().
fs/ext4/extents.c:2631: WARNING opportunity for max().
fs/ext4/extents.c:2632: WARNING opportunity for min().
fs/ext4/extents.c:5559: WARNING opportunity for max().
fs/ext4/super.c:6908: WARNING opportunity for min().
min()/max() and min_t() macro is defined in include/linux/minmax.h.
It avoids multiple evaluations of the arguments when non-constant and
performs strict type-checking.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Suggested-by: Lukas Czerner <lczerner@xxxxxxxxxx>
Signed-off-by: Jiangshan Yi <yijiangshan@xxxxxxxxxx>
Reviewed-by: Lukas Czerner <lczerner@xxxxxxxxxx>
---
fs/ext4/extents.c | 8 +++-----
fs/ext4/inline.c | 3 +--
fs/ext4/super.c | 3 +--
3 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index c148bb97b527..37321aecd878 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);
@@ -5557,8 +5556,7 @@ static int ext4_insert_range(struct file *file, loff_t offset, loff_t len)
* ee_start_lblk to shift extents
*/
ret = ext4_ext_shift_extents(inode, handle,
- ee_start_lblk > offset_lblk ? ee_start_lblk : offset_lblk,
- len_lblk, SHIFT_RIGHT);
+ max(ee_start_lblk, offset_lblk), len_lblk, SHIFT_RIGHT);
up_write(&EXT4_I(inode)->i_data_sem);
if (IS_SYNC(inode))
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index a4fbe825694b..2b42ececa46d 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -180,8 +180,7 @@ static int ext4_read_inline_data(struct inode *inode, void *buffer,
BUG_ON(len > EXT4_I(inode)->i_inline_size);
- cp_len = len < EXT4_MIN_INLINE_DATA_SIZE ?
- len : EXT4_MIN_INLINE_DATA_SIZE;
+ cp_len = min_t(unsigned int, len, EXT4_MIN_INLINE_DATA_SIZE);
raw_inode = ext4_raw_inode(iloc);
memcpy(buffer, (void *)(raw_inode->i_block), cp_len);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9a66abcca1a8..55649efc3eec 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6905,8 +6905,7 @@ static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
len = i_size-off;
toread = len;
while (toread > 0) {
- tocopy = sb->s_blocksize - offset < toread ?
- sb->s_blocksize - offset : toread;
+ tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread);
bh = ext4_bread(NULL, inode, blk, 0);
if (IS_ERR(bh))
return PTR_ERR(bh);
--
2.27.0
No virus found
Checked by Hillstone Network AntiVirus
