#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/stat.h>
+#include <linux/slab.h>
#include <linux/param.h>
#include <linux/time.h>
#include "autofs_i.h"
* it.
*/
spin_lock(&dcache_lock);
- if (!d_mountpoint(dentry) && __simple_empty(dentry)) {
+ if (!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) {
spin_unlock(&dcache_lock);
return -ENOENT;
}
}
/* Trigger mount for path component or follow link */
} else if (ino->flags & AUTOFS_INF_PENDING ||
- autofs4_need_mount(flags) ||
- current->link_count) {
+ autofs4_need_mount(flags)) {
DPRINTK("waiting for mount name=%.*s",
dentry->d_name.len, dentry->d_name.name);
* mount it again.
*/
if (ino->flags & AUTOFS_INF_PENDING ||
- (!d_mountpoint(dentry) && __simple_empty(dentry))) {
+ (!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs))) {
spin_unlock(&dcache_lock);
spin_unlock(&sbi->fs_lock);
- status = try_to_fill_dentry(dentry, 0);
+ status = try_to_fill_dentry(dentry, nd->flags);
if (status)
goto out_error;
/* Check for a non-mountpoint directory with no contents */
spin_lock(&dcache_lock);
if (S_ISDIR(dentry->d_inode->i_mode) &&
- !d_mountpoint(dentry) &&
- __simple_empty(dentry)) {
+ !d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) {
DPRINTK("dentry=%p %.*s, emptydir",
dentry, dentry->d_name.len, dentry->d_name.name);
spin_unlock(&dcache_lock);
.d_release = autofs4_dentry_release,
};
-static struct dentry *autofs4_lookup_active(struct autofs_sb_info *sbi, struct dentry *parent, struct qstr *name)
+static struct dentry *autofs4_lookup_active(struct dentry *dentry)
{
+ struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+ struct dentry *parent = dentry->d_parent;
+ struct qstr *name = &dentry->d_name;
unsigned int len = name->len;
unsigned int hash = name->hash;
const unsigned char *str = name->name;
head = &sbi->active_list;
list_for_each(p, head) {
struct autofs_info *ino;
- struct dentry *dentry;
+ struct dentry *active;
struct qstr *qstr;
ino = list_entry(p, struct autofs_info, active);
- dentry = ino->dentry;
+ active = ino->dentry;
- spin_lock(&dentry->d_lock);
+ spin_lock(&active->d_lock);
/* Already gone? */
- if (atomic_read(&dentry->d_count) == 0)
+ if (atomic_read(&active->d_count) == 0)
goto next;
- qstr = &dentry->d_name;
+ qstr = &active->d_name;
- if (dentry->d_name.hash != hash)
+ if (active->d_name.hash != hash)
goto next;
- if (dentry->d_parent != parent)
+ if (active->d_parent != parent)
goto next;
if (qstr->len != len)
if (memcmp(qstr->name, str, len))
goto next;
- if (d_unhashed(dentry)) {
- dget(dentry);
- spin_unlock(&dentry->d_lock);
+ if (d_unhashed(active)) {
+ dget(active);
+ spin_unlock(&active->d_lock);
spin_unlock(&sbi->lookup_lock);
spin_unlock(&dcache_lock);
- return dentry;
+ return active;
}
next:
- spin_unlock(&dentry->d_lock);
+ spin_unlock(&active->d_lock);
}
spin_unlock(&sbi->lookup_lock);
spin_unlock(&dcache_lock);
return NULL;
}
-static struct dentry *autofs4_lookup_expiring(struct autofs_sb_info *sbi, struct dentry *parent, struct qstr *name)
+static struct dentry *autofs4_lookup_expiring(struct dentry *dentry)
{
+ struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+ struct dentry *parent = dentry->d_parent;
+ struct qstr *name = &dentry->d_name;
unsigned int len = name->len;
unsigned int hash = name->hash;
const unsigned char *str = name->name;
head = &sbi->expiring_list;
list_for_each(p, head) {
struct autofs_info *ino;
- struct dentry *dentry;
+ struct dentry *expiring;
struct qstr *qstr;
ino = list_entry(p, struct autofs_info, expiring);
- dentry = ino->dentry;
+ expiring = ino->dentry;
- spin_lock(&dentry->d_lock);
+ spin_lock(&expiring->d_lock);
/* Bad luck, we've already been dentry_iput */
- if (!dentry->d_inode)
+ if (!expiring->d_inode)
goto next;
- qstr = &dentry->d_name;
+ qstr = &expiring->d_name;
- if (dentry->d_name.hash != hash)
+ if (expiring->d_name.hash != hash)
goto next;
- if (dentry->d_parent != parent)
+ if (expiring->d_parent != parent)
goto next;
if (qstr->len != len)
if (memcmp(qstr->name, str, len))
goto next;
- if (d_unhashed(dentry)) {
- dget(dentry);
- spin_unlock(&dentry->d_lock);
+ if (d_unhashed(expiring)) {
+ dget(expiring);
+ spin_unlock(&expiring->d_lock);
spin_unlock(&sbi->lookup_lock);
spin_unlock(&dcache_lock);
- return dentry;
+ return expiring;
}
next:
- spin_unlock(&dentry->d_lock);
+ spin_unlock(&expiring->d_lock);
}
spin_unlock(&sbi->lookup_lock);
spin_unlock(&dcache_lock);
{
struct autofs_sb_info *sbi;
struct autofs_info *ino;
- struct dentry *expiring, *unhashed;
+ struct dentry *expiring, *active;
int oz_mode;
DPRINTK("name = %.*s",
DPRINTK("pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d",
current->pid, task_pgrp_nr(current), sbi->catatonic, oz_mode);
- unhashed = autofs4_lookup_active(sbi, dentry->d_parent, &dentry->d_name);
- if (unhashed) {
- dentry = unhashed;
+ active = autofs4_lookup_active(dentry);
+ if (active) {
+ dentry = active;
ino = autofs4_dentry_ino(dentry);
} else {
/*
if (!oz_mode) {
mutex_unlock(&dir->i_mutex);
- expiring = autofs4_lookup_expiring(sbi,
- dentry->d_parent,
- &dentry->d_name);
+ expiring = autofs4_lookup_expiring(dentry);
if (expiring) {
/*
* If we are racing with expire the request might not
if (sigismember (sigset, SIGKILL) ||
sigismember (sigset, SIGQUIT) ||
sigismember (sigset, SIGINT)) {
- if (unhashed)
- dput(unhashed);
+ if (active)
+ dput(active);
return ERR_PTR(-ERESTARTNOINTR);
}
}
else
dentry = ERR_PTR(-ENOENT);
- if (unhashed)
- dput(unhashed);
+ if (active)
+ dput(active);
return dentry;
}
- if (unhashed)
- return unhashed;
+ if (active)
+ return active;
return NULL;
}