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authorIan Kent <ikent@redhat.com>2016-11-24 08:03:42 +1100
committerAl Viro <viro@zeniv.linux.org.uk>2016-12-03 20:51:48 -0500
commitdd36a882e7ade2c642f8711426ad8e4b7009aaae (patch)
tree3d64641e78b2926cb8089494ccdb10f19e033f40 /fs/autofs4
parent74f504cff50b918f8ec2762b1513ae755da56a95 (diff)
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autofs: change autofs4_wait() to take struct path
In order to use the functions path_is_mountpoint() and path_has_submounts() autofs needs to pass a struct path in several places. Now change autofs4_wait() to take a struct path instead of a struct dentry. Link: http://lkml.kernel.org/r/20161011053413.27645.84666.stgit@pluto.themaw.net Signed-off-by: Ian Kent <raven@themaw.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Omar Sandoval <osandov@osandov.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/autofs4')
-rw-r--r--fs/autofs4/autofs_i.h3
-rw-r--r--fs/autofs4/expire.c5
-rw-r--r--fs/autofs4/root.c16
-rw-r--r--fs/autofs4/waitq.c3
4 files changed, 15 insertions, 12 deletions
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 45311525ad89..c885daae68c8 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -217,7 +217,8 @@ static inline int autofs_prepare_pipe(struct file *pipe)
/* Queue management functions */
-int autofs4_wait(struct autofs_sb_info *, struct dentry *, enum autofs_notify);
+int autofs4_wait(struct autofs_sb_info *,
+ const struct path *, enum autofs_notify);
int autofs4_wait_release(struct autofs_sb_info *, autofs_wqt_t, int);
void autofs4_catatonic_mode(struct autofs_sb_info *);
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index 6ba6107e6102..9c352da24444 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -526,7 +526,7 @@ retry:
pr_debug("waiting for expire %p name=%pd\n", dentry, dentry);
- status = autofs4_wait(sbi, dentry, NFY_NONE);
+ status = autofs4_wait(sbi, path, NFY_NONE);
wait_for_completion(&ino->expire_complete);
pr_debug("expire done status=%d\n", status);
@@ -593,11 +593,12 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
if (dentry) {
struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct path path = { .mnt = mnt, .dentry = dentry };
/* This is synchronous because it makes the daemon a
* little easier
*/
- ret = autofs4_wait(sbi, dentry, NFY_EXPIRE);
+ ret = autofs4_wait(sbi, &path, NFY_EXPIRE);
spin_lock(&sbi->fs_lock);
/* avoid rapid-fire expire attempts if expiry fails */
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 6b06337ca9fc..0e9881552881 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -269,17 +269,17 @@ next:
return NULL;
}
-static int autofs4_mount_wait(struct dentry *dentry, bool rcu_walk)
+static int autofs4_mount_wait(const struct path *path, bool rcu_walk)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs4_sbi(path->dentry->d_sb);
+ struct autofs_info *ino = autofs4_dentry_ino(path->dentry);
int status = 0;
if (ino->flags & AUTOFS_INF_PENDING) {
if (rcu_walk)
return -ECHILD;
- pr_debug("waiting for mount name=%pd\n", dentry);
- status = autofs4_wait(sbi, dentry, NFY_MOUNT);
+ pr_debug("waiting for mount name=%pd\n", path->dentry);
+ status = autofs4_wait(sbi, path, NFY_MOUNT);
pr_debug("mount wait done status=%d\n", status);
}
ino->last_used = jiffies;
@@ -364,7 +364,7 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
spin_lock(&sbi->fs_lock);
if (ino->flags & AUTOFS_INF_PENDING) {
spin_unlock(&sbi->fs_lock);
- status = autofs4_mount_wait(dentry, 0);
+ status = autofs4_mount_wait(path, 0);
if (status)
return ERR_PTR(status);
goto done;
@@ -405,7 +405,7 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
}
ino->flags |= AUTOFS_INF_PENDING;
spin_unlock(&sbi->fs_lock);
- status = autofs4_mount_wait(dentry, 0);
+ status = autofs4_mount_wait(path, 0);
spin_lock(&sbi->fs_lock);
ino->flags &= ~AUTOFS_INF_PENDING;
if (status) {
@@ -447,7 +447,7 @@ static int autofs4_d_manage(const struct path *path, bool rcu_walk)
* This dentry may be under construction so wait on mount
* completion.
*/
- status = autofs4_mount_wait(dentry, rcu_walk);
+ status = autofs4_mount_wait(path, rcu_walk);
if (status)
return status;
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index e44271dfceb6..38ef973f80e9 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -345,8 +345,9 @@ static int validate_request(struct autofs_wait_queue **wait,
}
int autofs4_wait(struct autofs_sb_info *sbi,
- struct dentry *dentry, enum autofs_notify notify)
+ const struct path *path, enum autofs_notify notify)
{
+ struct dentry *dentry = path->dentry;
struct autofs_wait_queue *wq;
struct qstr qstr;
char *name;