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sysfs, kernfs: introduce kernfs_remove[_by_name[_ns]]()

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Introduce kernfs removal interfaces - kernfs_remove() and
kernfs_remove_by_name[_ns]().

These are just renames of sysfs_remove() and sysfs_hash_and_remove().
No functional changes.

v2: Dummy kernfs_remove_by_name_ns() for !CONFIG_SYSFS updated to
    return -ENOSYS instead of 0.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo
2013-11-23 17:21:49 -05:00
committed by Greg Kroah-Hartman
parent b8441ed279
commit 879f40d193
6 changed files with 46 additions and 26 deletions
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20
fs/sysfs/dir.c
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@@ -829,8 +829,8 @@ static struct sysfs_dirent *sysfs_next_descendant_post(struct sysfs_dirent *pos,
return pos->s_parent;
}
static void __sysfs_remove(struct sysfs_addrm_cxt *acxt,
struct sysfs_dirent *sd)
static void __kernfs_remove(struct sysfs_addrm_cxt *acxt,
struct sysfs_dirent *sd)
{
struct sysfs_dirent *pos, *next;
@@ -849,22 +849,22 @@ static void __sysfs_remove(struct sysfs_addrm_cxt *acxt,
}
/**
* sysfs_remove - remove a sysfs_dirent recursively
* kernfs_remove - remove a sysfs_dirent recursively
* @sd: the sysfs_dirent to remove
*
* Remove @sd along with all its subdirectories and files.
*/
void sysfs_remove(struct sysfs_dirent *sd)
void kernfs_remove(struct sysfs_dirent *sd)
{
struct sysfs_addrm_cxt acxt;
sysfs_addrm_start(&acxt);
__sysfs_remove(&acxt, sd);
__kernfs_remove(&acxt, sd);
sysfs_addrm_finish(&acxt);
}
/**
* sysfs_hash_and_remove - find a sysfs_dirent by name and remove it
* kernfs_remove_by_name_ns - find a sysfs_dirent by name and remove it
* @dir_sd: parent of the target
* @name: name of the sysfs_dirent to remove
* @ns: namespace tag of the sysfs_dirent to remove
@@ -872,8 +872,8 @@ void sysfs_remove(struct sysfs_dirent *sd)
* Look for the sysfs_dirent with @name and @ns under @dir_sd and remove
* it. Returns 0 on success, -ENOENT if such entry doesn't exist.
*/
int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
const void *ns)
int kernfs_remove_by_name_ns(struct sysfs_dirent *dir_sd, const char *name,
const void *ns)
{
struct sysfs_addrm_cxt acxt;
struct sysfs_dirent *sd;
@@ -888,7 +888,7 @@ int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
sd = sysfs_find_dirent(dir_sd, name, ns);
if (sd)
__sysfs_remove(&acxt, sd);
__kernfs_remove(&acxt, sd);
sysfs_addrm_finish(&acxt);
@@ -928,7 +928,7 @@ void sysfs_remove_dir(struct kobject *kobj)
if (sd) {
WARN_ON_ONCE(sysfs_type(sd) != SYSFS_DIR);
sysfs_remove(sd);
kernfs_remove(sd);
}
}