Merge branch 'poll' into staging/for_v3.4

* poll: (5970 commits)
  poll: add poll_requested_events() and poll_does_not_wait() functions
  crc32: select an algorithm via Kconfig
  crc32: add self-test code for crc32c
  crypto: crc32c should use library implementation
  crc32: bolt on crc32c
  crc32: add note about this patchset to crc32.c
  crc32: optimize loop counter for x86
  crc32: add slice-by-8 algorithm to existing code
  crc32: make CRC_*_BITS definition correspond to actual bit counts
  crc32: fix mixing of endian-specific types
  crc32: miscellaneous cleanups
  crc32: simplify unit test code
  crc32: move long comment about crc32 fundamentals to Documentation/
  crc32: remove two instances of trailing whitespaces
  checkpatch: check for quoted strings broken across lines
  checkpatch: whitespace - add/remove blank lines
  checkpatch: warn on use of yield()
  checkpatch: add --strict tests for braces, comments and casts
  checkpatch: add [] to type extensions
  checkpatch: high precedence operators do not require additional parentheses in #defines
  ...

1 files changed, 3 insertions, 9 deletions

diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index 0f3eb41d9201..cc9f2546ea4a 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -110,13 +110,13 @@ out:
 
 
 static int get_target(const char *symname, struct path *path,
-		      struct config_item **target)
+		      struct config_item **target, struct super_block *sb)
 {
 	int ret;
 
 	ret = kern_path(symname, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, path);
 	if (!ret) {
-		if (path->dentry->d_sb == configfs_sb) {
+		if (path->dentry->d_sb == sb) {
 			*target = configfs_get_config_item(path->dentry);
 			if (!*target) {
 				ret = -ENOENT;
@@ -141,10 +141,6 @@ int configfs_symlink(struct inode *dir, struct dentry *dentry, const char *symna
 	struct config_item *target_item = NULL;
 	struct config_item_type *type;
 
-	ret = -EPERM;  /* What lack-of-symlink returns */
-	if (dentry->d_parent == configfs_sb->s_root)
-		goto out;
-
 	sd = dentry->d_parent->d_fsdata;
 	/*
 	 * Fake invisibility if dir belongs to a group/default groups hierarchy
@@ -162,7 +158,7 @@ int configfs_symlink(struct inode *dir, struct dentry *dentry, const char *symna
 	    !type->ct_item_ops->allow_link)
 		goto out_put;
 
-	ret = get_target(symname, &path, &target_item);
+	ret = get_target(symname, &path, &target_item, dentry->d_sb);
 	if (ret)
 		goto out_put;
 
@@ -198,8 +194,6 @@ int configfs_unlink(struct inode *dir, struct dentry *dentry)
 	if (!(sd->s_type & CONFIGFS_ITEM_LINK))
 		goto out;
 
-	BUG_ON(dentry->d_parent == configfs_sb->s_root);
-
 	sl = sd->s_element;
 
 	parent_item = configfs_get_config_item(dentry->d_parent);