fs: dcache remove dcache_lock
dcache_lock no longer protects anything. remove it.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 7a9ed6b..10ca68a 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -23,6 +23,8 @@
#include "autofs_i.h"
+DEFINE_SPINLOCK(autofs4_lock);
+
static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *);
static int autofs4_dir_unlink(struct inode *,struct dentry *);
static int autofs4_dir_rmdir(struct inode *,struct dentry *);
@@ -142,15 +144,15 @@
* autofs file system so just let the libfs routines handle
* it.
*/
- spin_lock(&dcache_lock);
+ spin_lock(&autofs4_lock);
spin_lock(&dentry->d_lock);
if (!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) {
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
return -ENOENT;
}
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
out:
return dcache_dir_open(inode, file);
@@ -255,11 +257,11 @@
/* We trigger a mount for almost all flags */
lookup_type = autofs4_need_mount(nd->flags);
spin_lock(&sbi->fs_lock);
- spin_lock(&dcache_lock);
+ spin_lock(&autofs4_lock);
spin_lock(&dentry->d_lock);
if (!(lookup_type || ino->flags & AUTOFS_INF_PENDING)) {
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
spin_unlock(&sbi->fs_lock);
goto follow;
}
@@ -272,7 +274,7 @@
if (ino->flags & AUTOFS_INF_PENDING ||
(!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs))) {
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
spin_unlock(&sbi->fs_lock);
status = try_to_fill_dentry(dentry, nd->flags);
@@ -282,7 +284,7 @@
goto follow;
}
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
spin_unlock(&sbi->fs_lock);
follow:
/*
@@ -353,14 +355,14 @@
return 0;
/* Check for a non-mountpoint directory with no contents */
- spin_lock(&dcache_lock);
+ spin_lock(&autofs4_lock);
spin_lock(&dentry->d_lock);
if (S_ISDIR(dentry->d_inode->i_mode) &&
!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) {
DPRINTK("dentry=%p %.*s, emptydir",
dentry, dentry->d_name.len, dentry->d_name.name);
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
/* The daemon never causes a mount to trigger */
if (oz_mode)
@@ -377,7 +379,7 @@
return status;
}
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
return 1;
}
@@ -432,7 +434,7 @@
const unsigned char *str = name->name;
struct list_head *p, *head;
- spin_lock(&dcache_lock);
+ spin_lock(&autofs4_lock);
spin_lock(&sbi->lookup_lock);
head = &sbi->active_list;
list_for_each(p, head) {
@@ -465,14 +467,14 @@
dget_dlock(active);
spin_unlock(&active->d_lock);
spin_unlock(&sbi->lookup_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
return active;
}
next:
spin_unlock(&active->d_lock);
}
spin_unlock(&sbi->lookup_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
return NULL;
}
@@ -487,7 +489,7 @@
const unsigned char *str = name->name;
struct list_head *p, *head;
- spin_lock(&dcache_lock);
+ spin_lock(&autofs4_lock);
spin_lock(&sbi->lookup_lock);
head = &sbi->expiring_list;
list_for_each(p, head) {
@@ -520,14 +522,14 @@
dget_dlock(expiring);
spin_unlock(&expiring->d_lock);
spin_unlock(&sbi->lookup_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
return expiring;
}
next:
spin_unlock(&expiring->d_lock);
}
spin_unlock(&sbi->lookup_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
return NULL;
}
@@ -763,12 +765,12 @@
dir->i_mtime = CURRENT_TIME;
- spin_lock(&dcache_lock);
+ spin_lock(&autofs4_lock);
autofs4_add_expiring(dentry);
spin_lock(&dentry->d_lock);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
return 0;
}
@@ -785,20 +787,20 @@
if (!autofs4_oz_mode(sbi))
return -EACCES;
- spin_lock(&dcache_lock);
+ spin_lock(&autofs4_lock);
spin_lock(&sbi->lookup_lock);
spin_lock(&dentry->d_lock);
if (!list_empty(&dentry->d_subdirs)) {
spin_unlock(&dentry->d_lock);
spin_unlock(&sbi->lookup_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
return -ENOTEMPTY;
}
__autofs4_add_expiring(dentry);
spin_unlock(&sbi->lookup_lock);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&autofs4_lock);
if (atomic_dec_and_test(&ino->count)) {
p_ino = autofs4_dentry_ino(dentry->d_parent);