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authorMiklos Szeredi <mszeredi@suse.cz>2008-06-16 13:46:47 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2008-07-21 21:54:57 -0700
commit93265d13ea5c3ec5f61a8009407fbe046ce6b7c0 (patch)
tree1db94fa6cc1ee9b0eae1332a340ac98efa4d8f28 /fs/sysfs/file.c
parent838ea8e8dbfc8d907c7a55bbad507a44c1b81d57 (diff)
downloadvexpress-lsk-93265d13ea5c3ec5f61a8009407fbe046ce6b7c0.tar.gz
sysfs: don't call notify_change
sysfs_chmod_file() calls notify_change() to change the permission bits on a sysfs file. Replace with explicit call to sysfs_setattr() and fsnotify_change(). This is equivalent, except that security_inode_setattr() is not called. This function is called by drivers, so the security checks do not make any sense. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/file.c')
-rw-r--r--fs/sysfs/file.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index e7735f643cd..3f07893ff89 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -14,6 +14,7 @@
#include <linux/kobject.h>
#include <linux/kallsyms.h>
#include <linux/slab.h>
+#include <linux/fsnotify.h>
#include <linux/namei.h>
#include <linux/poll.h>
#include <linux/list.h>
@@ -585,9 +586,11 @@ int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode)
newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
- rc = notify_change(victim, &newattrs);
+ newattrs.ia_ctime = current_fs_time(inode->i_sb);
+ rc = sysfs_setattr(victim, &newattrs);
if (rc == 0) {
+ fsnotify_change(victim, newattrs.ia_valid);
mutex_lock(&sysfs_mutex);
victim_sd->s_mode = newattrs.ia_mode;
mutex_unlock(&sysfs_mutex);