From: Eric W. Biederman Date: Sun, 8 Nov 2009 07:27:02 +0000 (-0800) Subject: sysfs: Simplify sysfs_chmod_file semantics X-Git-Tag: v2.6.33-rc1~314^2~12 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=4c6974f51a981d14f13e36049d6307d3bcda550e;p=linux.git sysfs: Simplify sysfs_chmod_file semantics Currently every caller of sysfs_chmod_file happens at either file creation time to set a non-default mode or in response to a specific user requested space change in policy. Making timestamps of when the chmod happens and notification of a file changing mode uninteresting. Remove the unnecessary time stamp and filesystem change notification, and removes the last of the explicit inotify and donitfy support from sysfs. Acked-by: Tejun Heo Acked-by: Serge Hallyn Signed-off-by: Eric W. Biederman Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index f5ea4680f15f..faa1a803caa9 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -604,17 +604,9 @@ int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode) mutex_lock(&inode->i_mutex); newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); - newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; - newattrs.ia_ctime = current_fs_time(inode->i_sb); + newattrs.ia_valid = ATTR_MODE; 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); - } - mutex_unlock(&inode->i_mutex); out: dput(victim);