Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/autofs/Kconfig b/fs/autofs/Kconfig
index eaebcd4..3b3a6b1 100644
--- a/fs/autofs/Kconfig
+++ b/fs/autofs/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config AUTOFS4_FS
tristate "Old Kconfig name for Kernel automounter support"
select AUTOFS_FS
diff --git a/fs/autofs/Makefile b/fs/autofs/Makefile
index 1f85d35..495ac54 100644
--- a/fs/autofs/Makefile
+++ b/fs/autofs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
#
# Makefile for the linux autofs-filesystem routines.
#
diff --git a/fs/autofs/autofs_i.h b/fs/autofs/autofs_i.h
index 9f9cadb..8bcec8d 100644
--- a/fs/autofs/autofs_i.h
+++ b/fs/autofs/autofs_i.h
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright 1997-1998 Transmeta Corporation - All Rights Reserved
* Copyright 2005-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
*/
/* Internal header file for autofs */
@@ -42,6 +39,8 @@
#endif
#define pr_fmt(fmt) KBUILD_MODNAME ":pid:%d:%s: " fmt, current->pid, __func__
+extern struct file_system_type autofs_fs_type;
+
/*
* Unified info structure. This is pointed to by both the dentry and
* inode structures. Each file in the filesystem has an instance of this
@@ -59,7 +58,6 @@
struct completion expire_complete;
struct list_head active;
- int active_count;
struct list_head expiring;
@@ -69,6 +67,7 @@
kuid_t uid;
kgid_t gid;
+ struct rcu_head rcu;
};
#define AUTOFS_INF_EXPIRING (1<<0) /* dentry in the process of expiring */
@@ -101,16 +100,20 @@
#define AUTOFS_SBI_MAGIC 0x6d4a556d
+#define AUTOFS_SBI_CATATONIC 0x0001
+#define AUTOFS_SBI_STRICTEXPIRE 0x0002
+#define AUTOFS_SBI_IGNORE 0x0004
+
struct autofs_sb_info {
u32 magic;
int pipefd;
struct file *pipe;
struct pid *oz_pgrp;
- int catatonic;
int version;
int sub_version;
int min_proto;
int max_proto;
+ unsigned int flags;
unsigned long exp_timeout;
unsigned int type;
struct super_block *sb;
@@ -126,8 +129,7 @@
static inline struct autofs_sb_info *autofs_sbi(struct super_block *sb)
{
- return sb->s_magic != AUTOFS_SUPER_MAGIC ?
- NULL : (struct autofs_sb_info *)(sb->s_fs_info);
+ return (struct autofs_sb_info *)(sb->s_fs_info);
}
static inline struct autofs_info *autofs_dentry_ino(struct dentry *dentry)
@@ -141,7 +143,8 @@
*/
static inline int autofs_oz_mode(struct autofs_sb_info *sbi)
{
- return sbi->catatonic || task_pgrp(current) == sbi->oz_pgrp;
+ return ((sbi->flags & AUTOFS_SBI_CATATONIC) ||
+ task_pgrp(current) == sbi->oz_pgrp);
}
struct inode *autofs_get_inode(struct super_block *, umode_t);
@@ -210,6 +213,8 @@
return -EINVAL;
/* We want a packet pipe */
pipe->f_flags |= O_DIRECT;
+ /* We don't expect -EAGAIN */
+ pipe->f_flags &= ~O_NONBLOCK;
return 0;
}
diff --git a/fs/autofs/dev-ioctl.c b/fs/autofs/dev-ioctl.c
index 86eafda..a3cdb00 100644
--- a/fs/autofs/dev-ioctl.c
+++ b/fs/autofs/dev-ioctl.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2008 Red Hat, Inc. All rights reserved.
* Copyright 2008 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
*/
#include <linux/miscdevice.h>
@@ -151,22 +148,6 @@
return err;
}
-/*
- * Get the autofs super block info struct from the file opened on
- * the autofs mount point.
- */
-static struct autofs_sb_info *autofs_dev_ioctl_sbi(struct file *f)
-{
- struct autofs_sb_info *sbi = NULL;
- struct inode *inode;
-
- if (f) {
- inode = file_inode(f);
- sbi = autofs_sbi(inode->i_sb);
- }
- return sbi;
-}
-
/* Return autofs dev ioctl version */
static int autofs_dev_ioctl_version(struct file *fp,
struct autofs_sb_info *sbi,
@@ -366,7 +347,7 @@
pipefd = param->setpipefd.pipefd;
mutex_lock(&sbi->wq_mutex);
- if (!sbi->catatonic) {
+ if (!(sbi->flags & AUTOFS_SBI_CATATONIC)) {
mutex_unlock(&sbi->wq_mutex);
return -EBUSY;
} else {
@@ -393,7 +374,7 @@
swap(sbi->oz_pgrp, new_pid);
sbi->pipefd = pipefd;
sbi->pipe = pipe;
- sbi->catatonic = 0;
+ sbi->flags &= ~AUTOFS_SBI_CATATONIC;
}
out:
put_pid(new_pid);
@@ -658,6 +639,8 @@
if (cmd != AUTOFS_DEV_IOCTL_VERSION_CMD &&
cmd != AUTOFS_DEV_IOCTL_OPENMOUNT_CMD &&
cmd != AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD) {
+ struct super_block *sb;
+
fp = fget(param->ioctlfd);
if (!fp) {
if (cmd == AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD)
@@ -666,12 +649,13 @@
goto out;
}
- sbi = autofs_dev_ioctl_sbi(fp);
- if (!sbi || sbi->magic != AUTOFS_SBI_MAGIC) {
+ sb = file_inode(fp)->i_sb;
+ if (sb->s_type != &autofs_fs_type) {
err = -EINVAL;
fput(fp);
goto out;
}
+ sbi = autofs_sbi(sb);
/*
* Admin needs to be able to set the mount catatonic in
diff --git a/fs/autofs/expire.c b/fs/autofs/expire.c
index d441244..91f5787 100644
--- a/fs/autofs/expire.c
+++ b/fs/autofs/expire.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
*/
#include "autofs_i.h"
@@ -73,6 +70,27 @@
return status;
}
+/* p->d_lock held */
+static struct dentry *positive_after(struct dentry *p, struct dentry *child)
+{
+ if (child)
+ child = list_next_entry(child, d_child);
+ else
+ child = list_first_entry(&p->d_subdirs, struct dentry, d_child);
+
+ list_for_each_entry_from(child, &p->d_subdirs, d_child) {
+ spin_lock_nested(&child->d_lock, DENTRY_D_LOCK_NESTED);
+ if (simple_positive(child)) {
+ dget_dlock(child);
+ spin_unlock(&child->d_lock);
+ return child;
+ }
+ spin_unlock(&child->d_lock);
+ }
+
+ return NULL;
+}
+
/*
* Calculate and dget next entry in the subdirs list under root.
*/
@@ -80,43 +98,14 @@
struct dentry *root)
{
struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
- struct list_head *next;
struct dentry *q;
spin_lock(&sbi->lookup_lock);
spin_lock(&root->d_lock);
-
- if (prev)
- next = prev->d_child.next;
- else {
- prev = dget_dlock(root);
- next = prev->d_subdirs.next;
- }
-
-cont:
- if (next == &root->d_subdirs) {
- spin_unlock(&root->d_lock);
- spin_unlock(&sbi->lookup_lock);
- dput(prev);
- return NULL;
- }
-
- q = list_entry(next, struct dentry, d_child);
-
- spin_lock_nested(&q->d_lock, DENTRY_D_LOCK_NESTED);
- /* Already gone or negative dentry (under construction) - try next */
- if (!d_count(q) || !simple_positive(q)) {
- spin_unlock(&q->d_lock);
- next = q->d_child.next;
- goto cont;
- }
- dget_dlock(q);
- spin_unlock(&q->d_lock);
+ q = positive_after(root, prev);
spin_unlock(&root->d_lock);
spin_unlock(&sbi->lookup_lock);
-
dput(prev);
-
return q;
}
@@ -127,59 +116,28 @@
struct dentry *root)
{
struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
- struct list_head *next;
- struct dentry *p, *ret;
+ struct dentry *p = prev, *ret = NULL, *d = NULL;
if (prev == NULL)
return dget(root);
spin_lock(&sbi->lookup_lock);
-relock:
- p = prev;
spin_lock(&p->d_lock);
-again:
- next = p->d_subdirs.next;
- if (next == &p->d_subdirs) {
- while (1) {
- struct dentry *parent;
+ while (1) {
+ struct dentry *parent;
- if (p == root) {
- spin_unlock(&p->d_lock);
- spin_unlock(&sbi->lookup_lock);
- dput(prev);
- return NULL;
- }
-
- parent = p->d_parent;
- if (!spin_trylock(&parent->d_lock)) {
- spin_unlock(&p->d_lock);
- cpu_relax();
- goto relock;
- }
- spin_unlock(&p->d_lock);
- next = p->d_child.next;
- p = parent;
- if (next != &parent->d_subdirs)
- break;
- }
- }
- ret = list_entry(next, struct dentry, d_child);
-
- spin_lock_nested(&ret->d_lock, DENTRY_D_LOCK_NESTED);
- /* Negative dentry - try next */
- if (!simple_positive(ret)) {
+ ret = positive_after(p, d);
+ if (ret || p == root)
+ break;
+ parent = p->d_parent;
spin_unlock(&p->d_lock);
- lock_set_subclass(&ret->d_lock.dep_map, 0, _RET_IP_);
- p = ret;
- goto again;
+ spin_lock(&parent->d_lock);
+ d = p;
+ p = parent;
}
- dget_dlock(ret);
- spin_unlock(&ret->d_lock);
spin_unlock(&p->d_lock);
spin_unlock(&sbi->lookup_lock);
-
dput(prev);
-
return ret;
}
@@ -501,9 +459,10 @@
*/
how &= ~AUTOFS_EXP_LEAVES;
found = should_expire(expired, mnt, timeout, how);
- if (!found || found != expired)
- /* Something has changed, continue */
+ if (found != expired) { // something has changed, continue
+ dput(found);
goto next;
+ }
if (expired != dentry)
dput(dentry);
@@ -596,7 +555,6 @@
pkt.len = dentry->d_name.len;
memcpy(pkt.name, dentry->d_name.name, pkt.len);
pkt.name[pkt.len] = '\0';
- dput(dentry);
if (copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)))
ret = -EFAULT;
@@ -609,6 +567,8 @@
complete_all(&ino->expire_complete);
spin_unlock(&sbi->fs_lock);
+ dput(dentry);
+
return ret;
}
diff --git a/fs/autofs/init.c b/fs/autofs/init.c
index 79ae07d..d3f55e8 100644
--- a/fs/autofs/init.c
+++ b/fs/autofs/init.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
*/
#include <linux/module.h>
@@ -16,7 +13,7 @@
return mount_nodev(fs_type, flags, data, autofs_fill_super);
}
-static struct file_system_type autofs_fs_type = {
+struct file_system_type autofs_fs_type = {
.owner = THIS_MODULE,
.name = "autofs",
.mount = autofs_mount,
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
index 846c052..9edf243 100644
--- a/fs/autofs/inode.c
+++ b/fs/autofs/inode.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 2005-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
*/
#include <linux/seq_file.h>
@@ -36,7 +33,7 @@
void autofs_free_ino(struct autofs_info *ino)
{
- kfree(ino);
+ kfree_rcu(ino, rcu);
}
void autofs_kill_sb(struct super_block *sb)
@@ -82,16 +79,20 @@
seq_printf(m, ",maxproto=%d", sbi->max_proto);
if (autofs_type_offset(sbi->type))
- seq_printf(m, ",offset");
+ seq_puts(m, ",offset");
else if (autofs_type_direct(sbi->type))
- seq_printf(m, ",direct");
+ seq_puts(m, ",direct");
else
- seq_printf(m, ",indirect");
+ seq_puts(m, ",indirect");
+ if (sbi->flags & AUTOFS_SBI_STRICTEXPIRE)
+ seq_puts(m, ",strictexpire");
+ if (sbi->flags & AUTOFS_SBI_IGNORE)
+ seq_puts(m, ",ignore");
#ifdef CONFIG_CHECKPOINT_RESTORE
if (sbi->pipe)
seq_printf(m, ",pipe_ino=%ld", file_inode(sbi->pipe)->i_ino);
else
- seq_printf(m, ",pipe_ino=-1");
+ seq_puts(m, ",pipe_ino=-1");
#endif
return 0;
}
@@ -109,7 +110,8 @@
};
enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto,
- Opt_indirect, Opt_direct, Opt_offset};
+ Opt_indirect, Opt_direct, Opt_offset, Opt_strictexpire,
+ Opt_ignore};
static const match_table_t tokens = {
{Opt_fd, "fd=%u"},
@@ -121,24 +123,29 @@
{Opt_indirect, "indirect"},
{Opt_direct, "direct"},
{Opt_offset, "offset"},
+ {Opt_strictexpire, "strictexpire"},
+ {Opt_ignore, "ignore"},
{Opt_err, NULL}
};
-static int parse_options(char *options, int *pipefd, kuid_t *uid, kgid_t *gid,
- int *pgrp, bool *pgrp_set, unsigned int *type,
- int *minproto, int *maxproto)
+static int parse_options(char *options,
+ struct inode *root, int *pgrp, bool *pgrp_set,
+ struct autofs_sb_info *sbi)
{
char *p;
substring_t args[MAX_OPT_ARGS];
int option;
+ int pipefd = -1;
+ kuid_t uid;
+ kgid_t gid;
- *uid = current_uid();
- *gid = current_gid();
+ root->i_uid = current_uid();
+ root->i_gid = current_gid();
- *minproto = AUTOFS_MIN_PROTO_VERSION;
- *maxproto = AUTOFS_MAX_PROTO_VERSION;
+ sbi->min_proto = AUTOFS_MIN_PROTO_VERSION;
+ sbi->max_proto = AUTOFS_MAX_PROTO_VERSION;
- *pipefd = -1;
+ sbi->pipefd = -1;
if (!options)
return 1;
@@ -152,22 +159,25 @@
token = match_token(p, tokens, args);
switch (token) {
case Opt_fd:
- if (match_int(args, pipefd))
+ if (match_int(args, &pipefd))
return 1;
+ sbi->pipefd = pipefd;
break;
case Opt_uid:
if (match_int(args, &option))
return 1;
- *uid = make_kuid(current_user_ns(), option);
- if (!uid_valid(*uid))
+ uid = make_kuid(current_user_ns(), option);
+ if (!uid_valid(uid))
return 1;
+ root->i_uid = uid;
break;
case Opt_gid:
if (match_int(args, &option))
return 1;
- *gid = make_kgid(current_user_ns(), option);
- if (!gid_valid(*gid))
+ gid = make_kgid(current_user_ns(), option);
+ if (!gid_valid(gid))
return 1;
+ root->i_gid = gid;
break;
case Opt_pgrp:
if (match_int(args, &option))
@@ -178,27 +188,33 @@
case Opt_minproto:
if (match_int(args, &option))
return 1;
- *minproto = option;
+ sbi->min_proto = option;
break;
case Opt_maxproto:
if (match_int(args, &option))
return 1;
- *maxproto = option;
+ sbi->max_proto = option;
break;
case Opt_indirect:
- set_autofs_type_indirect(type);
+ set_autofs_type_indirect(&sbi->type);
break;
case Opt_direct:
- set_autofs_type_direct(type);
+ set_autofs_type_direct(&sbi->type);
break;
case Opt_offset:
- set_autofs_type_offset(type);
+ set_autofs_type_offset(&sbi->type);
+ break;
+ case Opt_strictexpire:
+ sbi->flags |= AUTOFS_SBI_STRICTEXPIRE;
+ break;
+ case Opt_ignore:
+ sbi->flags |= AUTOFS_SBI_IGNORE;
break;
default:
return 1;
}
}
- return (*pipefd < 0);
+ return (sbi->pipefd < 0);
}
int autofs_fill_super(struct super_block *s, void *data, int silent)
@@ -206,7 +222,6 @@
struct inode *root_inode;
struct dentry *root;
struct file *pipe;
- int pipefd;
struct autofs_sb_info *sbi;
struct autofs_info *ino;
int pgrp = 0;
@@ -222,12 +237,12 @@
sbi->magic = AUTOFS_SBI_MAGIC;
sbi->pipefd = -1;
sbi->pipe = NULL;
- sbi->catatonic = 1;
sbi->exp_timeout = 0;
sbi->oz_pgrp = NULL;
sbi->sb = s;
sbi->version = 0;
sbi->sub_version = 0;
+ sbi->flags = AUTOFS_SBI_CATATONIC;
set_autofs_type_indirect(&sbi->type);
sbi->min_proto = 0;
sbi->max_proto = 0;
@@ -255,16 +270,16 @@
}
root_inode = autofs_get_inode(s, S_IFDIR | 0755);
root = d_make_root(root_inode);
- if (!root)
+ if (!root) {
+ ret = -ENOMEM;
goto fail_ino;
+ }
pipe = NULL;
root->d_fsdata = ino;
/* Can this call block? */
- if (parse_options(data, &pipefd, &root_inode->i_uid, &root_inode->i_gid,
- &pgrp, &pgrp_set, &sbi->type, &sbi->min_proto,
- &sbi->max_proto)) {
+ if (parse_options(data, root_inode, &pgrp, &pgrp_set, sbi)) {
pr_err("called with bogus options\n");
goto fail_dput;
}
@@ -303,8 +318,9 @@
root_inode->i_fop = &autofs_root_operations;
root_inode->i_op = &autofs_dir_inode_operations;
- pr_debug("pipe fd = %d, pgrp = %u\n", pipefd, pid_nr(sbi->oz_pgrp));
- pipe = fget(pipefd);
+ pr_debug("pipe fd = %d, pgrp = %u\n",
+ sbi->pipefd, pid_nr(sbi->oz_pgrp));
+ pipe = fget(sbi->pipefd);
if (!pipe) {
pr_err("could not open pipe file descriptor\n");
@@ -314,8 +330,7 @@
if (ret < 0)
goto fail_fput;
sbi->pipe = pipe;
- sbi->pipefd = pipefd;
- sbi->catatonic = 0;
+ sbi->flags &= ~AUTOFS_SBI_CATATONIC;
/*
* Success! Install the root dentry now to indicate completion.
diff --git a/fs/autofs/root.c b/fs/autofs/root.c
index 782e57b..29abafc 100644
--- a/fs/autofs/root.c
+++ b/fs/autofs/root.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
*/
#include <linux/capability.h>
@@ -63,38 +60,15 @@
.d_release = autofs_dentry_release,
};
-static void autofs_add_active(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino;
-
- ino = autofs_dentry_ino(dentry);
- if (ino) {
- spin_lock(&sbi->lookup_lock);
- if (!ino->active_count) {
- if (list_empty(&ino->active))
- list_add(&ino->active, &sbi->active_list);
- }
- ino->active_count++;
- spin_unlock(&sbi->lookup_lock);
- }
-}
-
static void autofs_del_active(struct dentry *dentry)
{
struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
struct autofs_info *ino;
ino = autofs_dentry_ino(dentry);
- if (ino) {
- spin_lock(&sbi->lookup_lock);
- ino->active_count--;
- if (!ino->active_count) {
- if (!list_empty(&ino->active))
- list_del_init(&ino->active);
- }
- spin_unlock(&sbi->lookup_lock);
- }
+ spin_lock(&sbi->lookup_lock);
+ list_del_init(&ino->active);
+ spin_unlock(&sbi->lookup_lock);
}
static int autofs_dir_open(struct inode *inode, struct file *file)
@@ -275,8 +249,11 @@
pr_debug("waiting for mount name=%pd\n", path->dentry);
status = autofs_wait(sbi, path, NFY_MOUNT);
pr_debug("mount wait done status=%d\n", status);
+ ino->last_used = jiffies;
+ return status;
}
- ino->last_used = jiffies;
+ if (!(sbi->flags & AUTOFS_SBI_STRICTEXPIRE))
+ ino->last_used = jiffies;
return status;
}
@@ -510,7 +487,8 @@
sbi = autofs_sbi(dir->i_sb);
pr_debug("pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d\n",
- current->pid, task_pgrp_nr(current), sbi->catatonic,
+ current->pid, task_pgrp_nr(current),
+ sbi->flags & AUTOFS_SBI_CATATONIC,
autofs_oz_mode(sbi));
active = autofs_lookup_active(dentry);
@@ -526,19 +504,22 @@
if (!autofs_oz_mode(sbi) && !IS_ROOT(dentry->d_parent))
return ERR_PTR(-ENOENT);
- /* Mark entries in the root as mount triggers */
- if (IS_ROOT(dentry->d_parent) &&
- autofs_type_indirect(sbi->type))
- __managed_dentry_set_managed(dentry);
-
ino = autofs_new_ino(sbi);
if (!ino)
return ERR_PTR(-ENOMEM);
+ spin_lock(&sbi->lookup_lock);
+ spin_lock(&dentry->d_lock);
+ /* Mark entries in the root as mount triggers */
+ if (IS_ROOT(dentry->d_parent) &&
+ autofs_type_indirect(sbi->type))
+ __managed_dentry_set_managed(dentry);
dentry->d_fsdata = ino;
ino->dentry = dentry;
- autofs_add_active(dentry);
+ list_add(&ino->active, &sbi->active_list);
+ spin_unlock(&sbi->lookup_lock);
+ spin_unlock(&dentry->d_lock);
}
return NULL;
}
@@ -563,7 +544,7 @@
* autofs mount is catatonic but the state of an autofs
* file system needs to be preserved over restarts.
*/
- if (sbi->catatonic)
+ if (sbi->flags & AUTOFS_SBI_CATATONIC)
return -EACCES;
BUG_ON(!ino);
@@ -626,7 +607,7 @@
* autofs mount is catatonic but the state of an autofs
* file system needs to be preserved over restarts.
*/
- if (sbi->catatonic)
+ if (sbi->flags & AUTOFS_SBI_CATATONIC)
return -EACCES;
if (atomic_dec_and_test(&ino->count)) {
@@ -714,7 +695,7 @@
* autofs mount is catatonic but the state of an autofs
* file system needs to be preserved over restarts.
*/
- if (sbi->catatonic)
+ if (sbi->flags & AUTOFS_SBI_CATATONIC)
return -EACCES;
spin_lock(&sbi->lookup_lock);
@@ -759,7 +740,7 @@
* autofs mount is catatonic but the state of an autofs
* file system needs to be preserved over restarts.
*/
- if (sbi->catatonic)
+ if (sbi->flags & AUTOFS_SBI_CATATONIC)
return -EACCES;
pr_debug("dentry %p, creating %pd\n", dentry, dentry);
diff --git a/fs/autofs/symlink.c b/fs/autofs/symlink.c
index aad3902..7ac67dc 100644
--- a/fs/autofs/symlink.c
+++ b/fs/autofs/symlink.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
*/
#include "autofs_i.h"
diff --git a/fs/autofs/waitq.c b/fs/autofs/waitq.c
index f6385c6..b04c528 100644
--- a/fs/autofs/waitq.c
+++ b/fs/autofs/waitq.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
*/
#include <linux/sched/signal.h>
@@ -20,14 +17,14 @@
struct autofs_wait_queue *wq, *nwq;
mutex_lock(&sbi->wq_mutex);
- if (sbi->catatonic) {
+ if (sbi->flags & AUTOFS_SBI_CATATONIC) {
mutex_unlock(&sbi->wq_mutex);
return;
}
pr_debug("entering catatonic mode\n");
- sbi->catatonic = 1;
+ sbi->flags |= AUTOFS_SBI_CATATONIC;
wq = sbi->queues;
sbi->queues = NULL; /* Erase all wait queues */
while (wq) {
@@ -255,7 +252,7 @@
struct autofs_wait_queue *wq;
struct autofs_info *ino;
- if (sbi->catatonic)
+ if (sbi->flags & AUTOFS_SBI_CATATONIC)
return -ENOENT;
/* Wait in progress, continue; */
@@ -290,7 +287,7 @@
if (mutex_lock_interruptible(&sbi->wq_mutex))
return -EINTR;
- if (sbi->catatonic)
+ if (sbi->flags & AUTOFS_SBI_CATATONIC)
return -ENOENT;
wq = autofs_find_wait(sbi, qstr);
@@ -359,7 +356,7 @@
pid_t tgid;
/* In catatonic mode, we don't wait for nobody */
- if (sbi->catatonic)
+ if (sbi->flags & AUTOFS_SBI_CATATONIC)
return -ENOENT;
/*