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authorTejun Heo <htejun@gmail.com>2007-09-20 16:05:10 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:51:09 -0700
commit5a7ad7f044941316dc98eda2a087a12a7a50649d (patch)
tree03b61af0e90dc158df43f24f8a38792d8c6ae651 /fs
parent59f69015684b3de7b9472be9a81b1a978f93a496 (diff)
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op-kernel-dev-5a7ad7f044941316dc98eda2a087a12a7a50649d.tar.gz
sysfs: kill sysfs_update_file()
sysfs_update_file() depends on inode->i_mtime but sysfs iondes are now reclaimable making the reported modification time unreliable. There's only one user (pci hotplug) of this notification mechanism and it reportedly isn't utilized from userland. Kill sysfs_update_file(). Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/sysfs/file.c40
1 files changed, 0 insertions, 40 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 9fdf8da..61a8c19 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -3,7 +3,6 @@
*/
#include <linux/module.h>
-#include <linux/fsnotify.h>
#include <linux/kobject.h>
#include <linux/namei.h>
#include <linux/poll.h>
@@ -453,44 +452,6 @@ int sysfs_add_file_to_group(struct kobject *kobj,
}
EXPORT_SYMBOL_GPL(sysfs_add_file_to_group);
-
-/**
- * sysfs_update_file - update the modified timestamp on an object attribute.
- * @kobj: object we're acting for.
- * @attr: attribute descriptor.
- */
-int sysfs_update_file(struct kobject * kobj, const struct attribute * attr)
-{
- struct sysfs_dirent *victim_sd = NULL;
- struct dentry *victim = NULL;
- int rc;
-
- rc = -ENOENT;
- victim_sd = sysfs_get_dirent(kobj->sd, attr->name);
- if (!victim_sd)
- goto out;
-
- mutex_lock(&sysfs_rename_mutex);
- victim = sysfs_get_dentry(victim_sd);
- mutex_unlock(&sysfs_rename_mutex);
- if (IS_ERR(victim)) {
- rc = PTR_ERR(victim);
- victim = NULL;
- goto out;
- }
-
- mutex_lock(&victim->d_inode->i_mutex);
- victim->d_inode->i_mtime = CURRENT_TIME;
- fsnotify_modify(victim);
- mutex_unlock(&victim->d_inode->i_mutex);
- rc = 0;
- out:
- dput(victim);
- sysfs_put(victim_sd);
- return rc;
-}
-
-
/**
* sysfs_chmod_file - update the modified mode value on an object attribute.
* @kobj: object we're acting for.
@@ -641,4 +602,3 @@ EXPORT_SYMBOL_GPL(sysfs_schedule_callback);
EXPORT_SYMBOL_GPL(sysfs_create_file);
EXPORT_SYMBOL_GPL(sysfs_remove_file);
-EXPORT_SYMBOL_GPL(sysfs_update_file);
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