[patch 1/3] vfs: dcache sparse fixes

[linux-2.6-omap-h63xx.git] / fs / dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index 2b479de10a0a1231127c2ca965425d5fbe75db8e..e4b2b9436b32039d15b0307a2b1aa3f57babe574 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -17,6 +17,7 @@
 #include <linux/syscalls.h>
 #include <linux/string.h>
 #include <linux/mm.h>
+#include <linux/fdtable.h>
 #include <linux/fs.h>
 #include <linux/fsnotify.h>
 #include <linux/slab.h>
@@ -106,9 +107,10 @@ static void dentry_lru_remove(struct dentry *dentry)
 /*
  * Release the dentry's inode, using the filesystem
  * d_iput() operation if defined.
- * Called with dcache_lock and per dentry lock held, drops both.
  */
 static void dentry_iput(struct dentry * dentry)
+       __releases(dentry->d_lock)
+       __releases(dcache_lock)
 {
        struct inode *inode = dentry->d_inode;
        if (inode) {
@@ -132,12 +134,13 @@ static void dentry_iput(struct dentry * dentry)
  * d_kill - kill dentry and return parent
  * @dentry: dentry to kill
  *
- * Called with dcache_lock and d_lock, releases both.  The dentry must
- * already be unhashed and removed from the LRU.
+ * The dentry must already be unhashed and removed from the LRU.
  *
  * If this is the root of the dentry tree, return NULL.
  */
 static struct dentry *d_kill(struct dentry *dentry)
+       __releases(dentry->d_lock)
+       __releases(dcache_lock)
 {
        struct dentry *parent;
 
@@ -383,11 +386,11 @@ restart:
  * Try to prune ancestors as well.  This is necessary to prevent
  * quadratic behavior of shrink_dcache_parent(), but is also expected
  * to be beneficial in reducing dentry cache fragmentation.
- *
- * Called with dcache_lock, drops it and then regains.
- * Called with dentry->d_lock held, drops it.
  */
 static void prune_one_dentry(struct dentry * dentry)
+       __releases(dentry->d_lock)
+       __releases(dcache_lock)
+       __acquires(dcache_lock)
 {
        __d_drop(dentry);
        dentry = d_kill(dentry);
@@ -1604,10 +1607,9 @@ static int d_isparent(struct dentry *p1, struct dentry *p2)
  *
  * Note: If ever the locking in lock_rename() changes, then please
  * remember to update this too...
- *
- * On return, dcache_lock will have been unlocked.
  */
 static struct dentry *__d_unalias(struct dentry *dentry, struct dentry *alias)
+       __releases(dcache_lock)
 {
        struct mutex *m1 = NULL, *m2 = NULL;
        struct dentry *ret;
@@ -1743,7 +1745,6 @@ out_nolock:
 shouldnt_be_hashed:
        spin_unlock(&dcache_lock);
        BUG();
-       goto shouldnt_be_hashed;
 }
 
 static int prepend(char **buffer, int *buflen, const char *str,
@@ -1758,7 +1759,7 @@ static int prepend(char **buffer, int *buflen, const char *str,
 }
 
 /**
- * d_path - return the path of a dentry
+ * __d_path - return the path of a dentry
  * @path: the dentry/vfsmount to report
  * @root: root vfsmnt/dentry (may be modified by this function)
  * @buffer: buffer to return value in
@@ -1847,7 +1848,7 @@ Elong:
  *
  * Returns the buffer or an error code if the path was too long.
  *
- * "buflen" should be positive. Caller holds the dcache_lock.
+ * "buflen" should be positive.
  */
 char *d_path(const struct path *path, char *buf, int buflen)
 {