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-rw-r--r--fs/configfs/dir.c10
-rw-r--r--fs/configfs/inode.c3
-rw-r--r--fs/dcache.c9
-rw-r--r--fs/libfs.c21
-rw-r--r--include/linux/fs.h2
-rw-r--r--security/apparmor/apparmorfs.c13
6 files changed, 39 insertions, 19 deletions
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 81f4f06bc87e..e8f2f44012e9 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -400,8 +400,14 @@ static void remove_dir(struct dentry * d)
configfs_remove_dirent(d);
- if (d_really_is_positive(d))
- simple_rmdir(d_inode(parent),d);
+ if (d_really_is_positive(d)) {
+ if (likely(simple_empty(d))) {
+ __simple_rmdir(d_inode(parent),d);
+ dput(d);
+ } else {
+ pr_warn("remove_dir (%pd): attributes remain", d);
+ }
+ }
pr_debug(" o %pd removing done (%d)\n", d, d_count(d));
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index 1d2e3a5738d1..bcda3372e141 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -211,7 +211,8 @@ void configfs_drop_dentry(struct configfs_dirent * sd, struct dentry * parent)
dget_dlock(dentry);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
- simple_unlink(d_inode(parent), dentry);
+ __simple_unlink(d_inode(parent), dentry);
+ dput(dentry);
} else
spin_unlock(&dentry->d_lock);
}
diff --git a/fs/dcache.c b/fs/dcache.c
index 5ee2e78a91b3..824d620bb563 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -931,14 +931,7 @@ EXPORT_SYMBOL(dput);
void d_make_discardable(struct dentry *dentry)
{
spin_lock(&dentry->d_lock);
- /*
- * By the end of the series we'll add
- * WARN_ON(!(dentry->d_flags & DCACHE_PERSISTENT);
- * here, but while object removal is done by a few common helpers,
- * object creation tends to be open-coded (if nothing else, new inode
- * needs to be set up), so adding a warning from the very beginning
- * would make for much messier patch series.
- */
+ WARN_ON(!(dentry->d_flags & DCACHE_PERSISTENT));
dentry->d_flags &= ~DCACHE_PERSISTENT;
dentry->d_lockref.count--;
rcu_read_lock();
diff --git a/fs/libfs.c b/fs/libfs.c
index 80f288a771e3..0aa630e7eb00 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -790,13 +790,27 @@ out:
}
EXPORT_SYMBOL(simple_empty);
-int simple_unlink(struct inode *dir, struct dentry *dentry)
+void __simple_unlink(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = d_inode(dentry);
inode_set_mtime_to_ts(dir,
inode_set_ctime_to_ts(dir, inode_set_ctime_current(inode)));
drop_nlink(inode);
+}
+EXPORT_SYMBOL(__simple_unlink);
+
+void __simple_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ drop_nlink(d_inode(dentry));
+ __simple_unlink(dir, dentry);
+ drop_nlink(dir);
+}
+EXPORT_SYMBOL(__simple_rmdir);
+
+int simple_unlink(struct inode *dir, struct dentry *dentry)
+{
+ __simple_unlink(dir, dentry);
d_make_discardable(dentry);
return 0;
}
@@ -807,9 +821,8 @@ int simple_rmdir(struct inode *dir, struct dentry *dentry)
if (!simple_empty(dentry))
return -ENOTEMPTY;
- drop_nlink(d_inode(dentry));
- simple_unlink(dir, dentry);
- drop_nlink(dir);
+ __simple_rmdir(dir, dentry);
+ d_make_discardable(dentry);
return 0;
}
EXPORT_SYMBOL(simple_rmdir);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 95933ceaae51..ef842adbd418 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3621,6 +3621,8 @@ extern int simple_open(struct inode *inode, struct file *file);
extern int simple_link(struct dentry *, struct inode *, struct dentry *);
extern int simple_unlink(struct inode *, struct dentry *);
extern int simple_rmdir(struct inode *, struct dentry *);
+extern void __simple_unlink(struct inode *, struct dentry *);
+extern void __simple_rmdir(struct inode *, struct dentry *);
void simple_rename_timestamp(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry);
extern int simple_rename_exchange(struct inode *old_dir, struct dentry *old_dentry,
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index 391a586d0557..9b9090d38ea2 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -358,10 +358,15 @@ static void aafs_remove(struct dentry *dentry)
dir = d_inode(dentry->d_parent);
inode_lock(dir);
if (simple_positive(dentry)) {
- if (d_is_dir(dentry))
- simple_rmdir(dir, dentry);
- else
- simple_unlink(dir, dentry);
+ if (d_is_dir(dentry)) {
+ if (!WARN_ON(!simple_empty(dentry))) {
+ __simple_rmdir(dir, dentry);
+ dput(dentry);
+ }
+ } else {
+ __simple_unlink(dir, dentry);
+ dput(dentry);
+ }
d_delete(dentry);
dput(dentry);
}