The way of determin attribute type is just matching
name with the predefined string, do this with strcmp
to simplify the code.
Signed-off-by: Yuan Can <yuancan@xxxxxxxxxx>
---
fs/ntfs3/xattr.c | 24 ++++++++----------------
1 file changed, 8 insertions(+), 16 deletions(-)
diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 7de8718c68a9..7fa5304a969b 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -720,11 +720,9 @@ static int ntfs_getxattr(const struct xattr_handler *handler, struct dentry *de,
{
int err;
struct ntfs_inode *ni = ntfs_i(inode);
- size_t name_len = strlen(name);
/* Dispatch request. */
- if (name_len == sizeof(SYSTEM_DOS_ATTRIB) - 1 &&
- !memcmp(name, SYSTEM_DOS_ATTRIB, sizeof(SYSTEM_DOS_ATTRIB))) {
+ if (!strcmp(name, SYSTEM_DOS_ATTRIB)) {
/* system.dos_attrib */
if (!buffer) {
err = sizeof(u8);
@@ -737,8 +735,7 @@ static int ntfs_getxattr(const struct xattr_handler *handler, struct dentry *de,
goto out;
}
- if (name_len == sizeof(SYSTEM_NTFS_ATTRIB) - 1 &&
- !memcmp(name, SYSTEM_NTFS_ATTRIB, sizeof(SYSTEM_NTFS_ATTRIB))) {
+ if (!strcmp(name, SYSTEM_NTFS_ATTRIB)) {
/* system.ntfs_attrib */
if (!buffer) {
err = sizeof(u32);
@@ -751,8 +748,7 @@ static int ntfs_getxattr(const struct xattr_handler *handler, struct dentry *de,
goto out;
}
- if (name_len == sizeof(SYSTEM_NTFS_SECURITY) - 1 &&
- !memcmp(name, SYSTEM_NTFS_SECURITY, sizeof(SYSTEM_NTFS_SECURITY))) {
+ if (!strcmp(name, SYSTEM_NTFS_SECURITY)) {
/* system.ntfs_security*/
struct SECURITY_DESCRIPTOR_RELATIVE *sd = NULL;
size_t sd_size = 0;
@@ -792,7 +788,7 @@ static int ntfs_getxattr(const struct xattr_handler *handler, struct dentry *de,
}
/* Deal with NTFS extended attribute. */
- err = ntfs_get_ea(inode, name, name_len, buffer, size, NULL);
+ err = ntfs_get_ea(inode, name, strlen(name), buffer, size, NULL);
out:
return err;
@@ -809,20 +805,17 @@ static noinline int ntfs_setxattr(const struct xattr_handler *handler,
{
int err = -EINVAL;
struct ntfs_inode *ni = ntfs_i(inode);
- size_t name_len = strlen(name);
enum FILE_ATTRIBUTE new_fa;
/* Dispatch request. */
- if (name_len == sizeof(SYSTEM_DOS_ATTRIB) - 1 &&
- !memcmp(name, SYSTEM_DOS_ATTRIB, sizeof(SYSTEM_DOS_ATTRIB))) {
+ if (!strcmp(name, SYSTEM_DOS_ATTRIB)) {
if (sizeof(u8) != size)
goto out;
new_fa = cpu_to_le32(*(u8 *)value);
goto set_new_fa;
}
- if (name_len == sizeof(SYSTEM_NTFS_ATTRIB) - 1 &&
- !memcmp(name, SYSTEM_NTFS_ATTRIB, sizeof(SYSTEM_NTFS_ATTRIB))) {
+ if (!strcmp(name, SYSTEM_NTFS_ATTRIB)) {
if (size != sizeof(u32))
goto out;
new_fa = cpu_to_le32(*(u32 *)value);
@@ -860,8 +853,7 @@ static noinline int ntfs_setxattr(const struct xattr_handler *handler,
goto out;
}
- if (name_len == sizeof(SYSTEM_NTFS_SECURITY) - 1 &&
- !memcmp(name, SYSTEM_NTFS_SECURITY, sizeof(SYSTEM_NTFS_SECURITY))) {
+ if (!strcmp(name, SYSTEM_NTFS_SECURITY)) {
/* system.ntfs_security*/
__le32 security_id;
bool inserted;
@@ -904,7 +896,7 @@ static noinline int ntfs_setxattr(const struct xattr_handler *handler,
}
/* Deal with NTFS extended attribute. */
- err = ntfs_set_ea(inode, name, name_len, value, size, flags, 0);
+ err = ntfs_set_ea(inode, name, strlen(name), value, size, flags, 0);
out:
inode->i_ctime = current_time(inode);
