Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  fs: take the ACL checks to common code
  bury posix_acl_..._masq() variants
  kill boilerplates around posix_acl_create_masq()
  generic_acl: no need to clone acl just to push it to set_cached_acl()
  kill boilerplate around posix_acl_chmod_masq()
  reiserfs: cache negative ACLs for v1 stat format
  xfs: cache negative ACLs if there is no attribute fork
  9p: do no return 0 from ->check_acl without actually checking
  vfs: move ACL cache lookup into generic code
  CIFS: Fix oops while mounting with prefixpath
  xfs: Fix wrong return value of xfs_file_aio_write
  fix devtmpfs race
  caam: don't pass bogus S_IFCHR to debugfs_create_...()
  get rid of create_proc_entry() abuses - proc_mkdir() is there for purpose
  asus-wmi: ->is_visible() can't return negative
  fix jffs2 ACLs on big-endian with 16bit mode_t
  9p: close ACL leaks
  ocfs2_init_acl(): fix a leak
  VFS : mount lock scalability for internal mounts

5 files changed, 34 insertions, 77 deletions

diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index c7156dc39ce7..ace635053a36 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -319,5 +319,5 @@ const struct inode_operations reiserfs_file_inode_operations = {
         .listxattr = reiserfs_listxattr,
         .removexattr = reiserfs_removexattr,
         .permission = reiserfs_permission,
-        .check_acl = reiserfs_check_acl,
+        .get_acl = reiserfs_get_acl,
 };
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 2922b90ceac1..9b0d4b78b4fb 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1475,6 +1475,11 @@ void reiserfs_read_locked_inode(struct inode *inode,
 
         reiserfs_check_path(&path_to_sd);       /* init inode should be relsing */
 
+        /*
+         * Stat data v1 doesn't support ACLs.
+         */
+        if (get_inode_sd_version(inode) == STAT_DATA_V1)
+                cache_no_acl(inode);
 }
 
 /**
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 551f1b79dbc4..ef392324bbf1 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -1529,7 +1529,7 @@ const struct inode_operations reiserfs_dir_inode_operations = {
         .listxattr = reiserfs_listxattr,
         .removexattr = reiserfs_removexattr,
         .permission = reiserfs_permission,
-        .check_acl = reiserfs_check_acl,
+        .get_acl = reiserfs_get_acl,
 };
 
 /*
@@ -1546,7 +1546,7 @@ const struct inode_operations reiserfs_symlink_inode_operations = {
         .listxattr = reiserfs_listxattr,
         .removexattr = reiserfs_removexattr,
         .permission = reiserfs_permission,
-        .check_acl = reiserfs_check_acl,
+        .get_acl = reiserfs_get_acl,
 
 };
 
@@ -1560,5 +1560,5 @@ const struct inode_operations reiserfs_special_inode_operations = {
         .listxattr = reiserfs_listxattr,
         .removexattr = reiserfs_removexattr,
         .permission = reiserfs_permission,
-        .check_acl = reiserfs_check_acl,
+        .get_acl = reiserfs_get_acl,
 };
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 6938d8c68d6e..6bc346c160e7 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -867,33 +867,6 @@ out:
         return err;
 }
 
-int reiserfs_check_acl(struct inode *inode, int mask)
-{
-        struct posix_acl *acl;
-        int error = -EAGAIN; /* do regular unix permission checks by default */
-
-        /*
-         * Stat data v1 doesn't support ACLs.
-         */
-        if (get_inode_sd_version(inode) == STAT_DATA_V1)
-                return -EAGAIN;
-
-        if (mask & MAY_NOT_BLOCK)
-                return -ECHILD;
-
-        acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
-
-        if (acl) {
-                if (!IS_ERR(acl)) {
-                        error = posix_acl_permission(inode, acl, mask);
-                        posix_acl_release(acl);
-                } else if (PTR_ERR(acl) != -ENODATA)
-                        error = PTR_ERR(acl);
-        }
-
-        return error;
-}
-
 static int create_privroot(struct dentry *dentry)
 {
         int err;
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 3dc38f1206fc..7362cf4c946a 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -354,9 +354,7 @@ reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
                 return PTR_ERR(acl);
 
         if (acl) {
-                struct posix_acl *acl_copy;
                 mode_t mode = inode->i_mode;
-                int need_acl;
 
                 /* Copy the default ACL to the default ACL of a new directory */
                 if (S_ISDIR(inode->i_mode)) {
@@ -368,29 +366,15 @@ reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
 
                 /* Now we reconcile the new ACL and the mode,
                    potentially modifying both */
-                acl_copy = posix_acl_clone(acl, GFP_NOFS);
-                if (!acl_copy) {
-                        err = -ENOMEM;
-                        goto cleanup;
-                }
+                err = posix_acl_create(&acl, GFP_NOFS, &mode);
+                if (err < 0)
+                        return err;
 
-                need_acl = posix_acl_create_masq(acl_copy, &mode);
-                if (need_acl >= 0) {
-                        if (mode != inode->i_mode) {
-                                inode->i_mode = mode;
-                        }
+                inode->i_mode = mode;
 
-                        /* If we need an ACL.. */
-                        if (need_acl > 0) {
-                                err = reiserfs_set_acl(th, inode,
-                                                       ACL_TYPE_ACCESS,
-                                                       acl_copy);
-                                if (err)
-                                        goto cleanup_copy;
-                        }
-                }
-              cleanup_copy:
-                posix_acl_release(acl_copy);
+                /* If we need an ACL.. */
+                if (err > 0)
+                        err = reiserfs_set_acl(th, inode, ACL_TYPE_ACCESS, acl);
               cleanup:
                 posix_acl_release(acl);
         } else {
@@ -445,7 +429,10 @@ int reiserfs_cache_default_acl(struct inode *inode)
 
 int reiserfs_acl_chmod(struct inode *inode)
 {
-        struct posix_acl *acl, *clone;
+        struct reiserfs_transaction_handle th;
+        struct posix_acl *acl;
+        size_t size;
+        int depth;
         int error;
 
         if (S_ISLNK(inode->i_mode))
@@ -463,30 +450,22 @@ int reiserfs_acl_chmod(struct inode *inode)
                 return 0;
         if (IS_ERR(acl))
                 return PTR_ERR(acl);
-        clone = posix_acl_clone(acl, GFP_NOFS);
-        posix_acl_release(acl);
-        if (!clone)
-                return -ENOMEM;
-        error = posix_acl_chmod_masq(clone, inode->i_mode);
+        error = posix_acl_chmod(&acl, GFP_NOFS, inode->i_mode);
+        if (error)
+                return error;
+
+        size = reiserfs_xattr_nblocks(inode, reiserfs_acl_size(acl->a_count));
+        depth = reiserfs_write_lock_once(inode->i_sb);
+        error = journal_begin(&th, inode->i_sb, size * 2);
         if (!error) {
-                struct reiserfs_transaction_handle th;
-                size_t size = reiserfs_xattr_nblocks(inode,
-                                             reiserfs_acl_size(clone->a_count));
-                int depth;
-
-                depth = reiserfs_write_lock_once(inode->i_sb);
-                error = journal_begin(&th, inode->i_sb, size * 2);
-                if (!error) {
-                        int error2;
-                        error = reiserfs_set_acl(&th, inode, ACL_TYPE_ACCESS,
-                                                 clone);
-                        error2 = journal_end(&th, inode->i_sb, size * 2);
-                        if (error2)
-                                error = error2;
-                }
-                reiserfs_write_unlock_once(inode->i_sb, depth);
+                int error2;
+                error = reiserfs_set_acl(&th, inode, ACL_TYPE_ACCESS, acl);
+                error2 = journal_end(&th, inode->i_sb, size * 2);
+                if (error2)
+                        error = error2;
         }
-        posix_acl_release(clone);
+        reiserfs_write_unlock_once(inode->i_sb, depth);
+        posix_acl_release(acl);
         return error;
 }