ocfs2: avoid extra calls to strlen() after ocfs2_sprintf_system_inode_name()
Since 'ocfs2_sprintf_system_inode_name()' uses 'snprintf()' and returns
the number of characters emitted, callers of the former are better to use
that return value instead of an explicit calls to 'strlen()'.
Link: https://lkml.kernel.org/r/20250917060229.1854335-1-dmantipov@yandex.ru
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reviewed-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index db14c92..b686460 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -358,13 +358,11 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
goto bail;
}
} else {
- ocfs2_sprintf_system_inode_name(namebuf,
- sizeof(namebuf),
- type, i);
+ int len = ocfs2_sprintf_system_inode_name(namebuf,
+ sizeof(namebuf),
+ type, i);
status = ocfs2_lookup_ino_from_name(osb->sys_root_inode,
- namebuf,
- strlen(namebuf),
- &blkno);
+ namebuf, len, &blkno);
if (status < 0) {
status = -ENOENT;
goto bail;
@@ -651,12 +649,10 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
goto bail;
}
} else {
- ocfs2_sprintf_system_inode_name(namebuf, sizeof(namebuf), type,
- OCFS2_INVALID_SLOT);
+ int len = ocfs2_sprintf_system_inode_name(namebuf, sizeof(namebuf),
+ type, OCFS2_INVALID_SLOT);
status = ocfs2_lookup_ino_from_name(osb->sys_root_inode,
- namebuf,
- strlen(namebuf),
- &blkno);
+ namebuf, len, &blkno);
if (status < 0) {
status = -ENOENT;
goto bail;
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index cbe2f8e..86f2631 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -364,7 +364,7 @@ static int ocfs2_find_victim_alloc_group(struct inode *inode,
int *vict_bit,
struct buffer_head **ret_bh)
{
- int ret, i, bits_per_unit = 0;
+ int ret, i, len, bits_per_unit = 0;
u64 blkno;
char namebuf[40];
@@ -375,9 +375,9 @@ static int ocfs2_find_victim_alloc_group(struct inode *inode,
struct ocfs2_dinode *ac_dinode;
struct ocfs2_group_desc *bg;
- ocfs2_sprintf_system_inode_name(namebuf, sizeof(namebuf), type, slot);
- ret = ocfs2_lookup_ino_from_name(osb->sys_root_inode, namebuf,
- strlen(namebuf), &blkno);
+ len = ocfs2_sprintf_system_inode_name(namebuf, sizeof(namebuf), type, slot);
+ ret = ocfs2_lookup_ino_from_name(osb->sys_root_inode, namebuf, len, &blkno);
+
if (ret) {
ret = -ENOENT;
goto out;
diff --git a/fs/ocfs2/sysfile.c b/fs/ocfs2/sysfile.c
index 53a945d..d53a6cc 100644
--- a/fs/ocfs2/sysfile.c
+++ b/fs/ocfs2/sysfile.c
@@ -127,14 +127,14 @@ static struct inode * _ocfs2_get_system_file_inode(struct ocfs2_super *osb,
char namebuf[40];
struct inode *inode = NULL;
u64 blkno;
- int status = 0;
+ int len, status = 0;
- ocfs2_sprintf_system_inode_name(namebuf,
- sizeof(namebuf),
- type, slot);
+ len = ocfs2_sprintf_system_inode_name(namebuf,
+ sizeof(namebuf),
+ type, slot);
- status = ocfs2_lookup_ino_from_name(osb->sys_root_inode, namebuf,
- strlen(namebuf), &blkno);
+ status = ocfs2_lookup_ino_from_name(osb->sys_root_inode,
+ namebuf, len, &blkno);
if (status < 0) {
goto bail;
}
