kill boilerplates around posix_acl_create_masq()
new helper: posix_acl_create(&acl, gfp, mode_p). Replaces acl with
modified clone, on failure releases acl and replaces with NULL.
Returns 0 or -ve on error. All callers of posix_acl_create_masq()
switched.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index d7211e2..075bc90 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -206,30 +206,18 @@
mode &= ~current_umask();
}
if (acl) {
- struct posix_acl *clone;
-
if (S_ISDIR(mode))
*dpacl = posix_acl_dup(acl);
- clone = posix_acl_clone(acl, GFP_NOFS);
- posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
-
- retval = posix_acl_create_masq(clone, &mode);
- if (retval < 0) {
- posix_acl_release(clone);
- goto cleanup;
- }
+ retval = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (retval < 0)
+ return retval;
if (retval > 0)
- *pacl = clone;
+ *pacl = acl;
else
- posix_acl_release(clone);
+ posix_acl_release(acl);
}
*modep = mode;
return 0;
-cleanup:
- return retval;
-
}
static int v9fs_remote_get_acl(struct dentry *dentry, const char *name,
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 88bca53..9508ad1 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -238,8 +238,7 @@
}
if (IS_POSIXACL(dir) && acl) {
- struct posix_acl *clone;
- mode_t mode;
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
ret = btrfs_set_acl(trans, inode, acl,
@@ -247,22 +246,15 @@
if (ret)
goto failed;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- ret = -ENOMEM;
- if (!clone)
- goto failed;
+ ret = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (ret < 0)
+ return ret;
- mode = inode->i_mode;
- ret = posix_acl_create_masq(clone, &mode);
- if (ret >= 0) {
- inode->i_mode = mode;
- if (ret > 0) {
- /* we need an acl */
- ret = btrfs_set_acl(trans, inode, clone,
- ACL_TYPE_ACCESS);
- }
+ inode->i_mode = mode;
+ if (ret > 0) {
+ /* we need an acl */
+ ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);
}
- posix_acl_release(clone);
}
failed:
posix_acl_release(acl);
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 1226dbc..ba99fa4 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -270,29 +270,20 @@
inode->i_mode &= ~current_umask();
}
if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
- struct posix_acl *clone;
- mode_t mode;
-
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
error = ext2_set_acl(inode, ACL_TYPE_DEFAULT, acl);
if (error)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_KERNEL);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
- mode = inode->i_mode;
- error = posix_acl_create_masq(clone, &mode);
- if (error >= 0) {
- inode->i_mode = mode;
- if (error > 0) {
- /* This is an extended ACL */
- error = ext2_set_acl(inode,
- ACL_TYPE_ACCESS, clone);
- }
+ error = posix_acl_create(&acl, GFP_KERNEL, &mode);
+ if (error < 0)
+ return error;
+ inode->i_mode = mode;
+ if (error > 0) {
+ /* This is an extended ACL */
+ error = ext2_set_acl(inode, ACL_TYPE_ACCESS, acl);
}
- posix_acl_release(clone);
}
cleanup:
posix_acl_release(acl);
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 7ea638a..a9fdd77 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -278,8 +278,7 @@
inode->i_mode &= ~current_umask();
}
if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
- struct posix_acl *clone;
- mode_t mode;
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
error = ext3_set_acl(handle, inode,
@@ -287,22 +286,15 @@
if (error)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
+ error = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (error < 0)
+ return error;
- mode = inode->i_mode;
- error = posix_acl_create_masq(clone, &mode);
- if (error >= 0) {
- inode->i_mode = mode;
- if (error > 0) {
- /* This is an extended ACL */
- error = ext3_set_acl(handle, inode,
- ACL_TYPE_ACCESS, clone);
- }
+ inode->i_mode = mode;
+ if (error > 0) {
+ /* This is an extended ACL */
+ error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
}
- posix_acl_release(clone);
}
cleanup:
posix_acl_release(acl);
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index e38a204..7b094d1 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -276,8 +276,7 @@
inode->i_mode &= ~current_umask();
}
if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
- struct posix_acl *clone;
- mode_t mode;
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
error = ext4_set_acl(handle, inode,
@@ -285,22 +284,15 @@
if (error)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
+ error = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (error < 0)
+ return error;
- mode = inode->i_mode;
- error = posix_acl_create_masq(clone, &mode);
- if (error >= 0) {
- inode->i_mode = mode;
- if (error > 0) {
- /* This is an extended ACL */
- error = ext4_set_acl(handle, inode,
- ACL_TYPE_ACCESS, clone);
- }
+ inode->i_mode = mode;
+ if (error > 0) {
+ /* This is an extended ACL */
+ error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
}
- posix_acl_release(clone);
}
cleanup:
posix_acl_release(acl);
diff --git a/fs/generic_acl.c b/fs/generic_acl.c
index 1347821..ea19ca4 100644
--- a/fs/generic_acl.c
+++ b/fs/generic_acl.c
@@ -132,25 +132,17 @@
if (!S_ISLNK(inode->i_mode))
acl = get_cached_acl(dir, ACL_TYPE_DEFAULT);
if (acl) {
- struct posix_acl *clone;
-
if (S_ISDIR(inode->i_mode))
set_cached_acl(inode, ACL_TYPE_DEFAULT, acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
- error = posix_acl_create_masq(clone, &mode);
- if (error >= 0) {
- inode->i_mode = mode;
- if (error > 0)
- set_cached_acl(inode, ACL_TYPE_ACCESS, clone);
- }
- posix_acl_release(clone);
+ error = posix_acl_create(&acl, GFP_KERNEL, &mode);
+ if (error < 0)
+ return error;
+ inode->i_mode = mode;
+ if (error > 0)
+ set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
}
error = 0;
-cleanup:
posix_acl_release(acl);
return error;
}
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 160d4e1..a2dd63c 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -137,7 +137,7 @@
int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode)
{
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
mode_t mode = inode->i_mode;
int error = 0;
@@ -162,16 +162,10 @@
goto out;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- error = -ENOMEM;
- if (!clone)
- goto out;
- posix_acl_release(acl);
- acl = clone;
-
- error = posix_acl_create_masq(acl, &mode);
+ error = posix_acl_create(&acl, GFP_NOFS, &mode);
if (error < 0)
- goto out;
+ return error;
+
if (error == 0)
goto munge;
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 71d022d..5783ed8 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -277,7 +277,7 @@
int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, mode_t *i_mode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int rc;
cache_no_acl(inode);
@@ -295,18 +295,13 @@
if (S_ISDIR(*i_mode))
set_cached_acl(inode, ACL_TYPE_DEFAULT, acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- if (!clone)
- return -ENOMEM;
- rc = posix_acl_create_masq(clone, i_mode);
- if (rc < 0) {
- posix_acl_release(clone);
+ rc = posix_acl_create(&acl, GFP_KERNEL, i_mode);
+ if (rc < 0)
return rc;
- }
if (rc > 0)
- set_cached_acl(inode, ACL_TYPE_ACCESS, clone);
+ set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
- posix_acl_release(clone);
+ posix_acl_release(acl);
}
return 0;
}
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 89ced71..687a1ae 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -133,8 +133,6 @@
int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
{
struct posix_acl *acl = NULL;
- struct posix_acl *clone;
- mode_t mode;
int rc = 0;
if (S_ISLNK(inode->i_mode))
@@ -145,25 +143,18 @@
return PTR_ERR(acl);
if (acl) {
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
rc = jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, acl);
if (rc)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_KERNEL);
- if (!clone) {
- rc = -ENOMEM;
- goto cleanup;
- }
- mode = inode->i_mode;
- rc = posix_acl_create_masq(clone, &mode);
- if (rc >= 0) {
- inode->i_mode = mode;
- if (rc > 0)
- rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS,
- clone);
- }
- posix_acl_release(clone);
+ rc = posix_acl_create(&acl, GFP_KERNEL, &mode);
+ if (rc < 0)
+ goto cleanup; /* posix_acl_release(NULL) is no-op */
+ inode->i_mode = mode;
+ if (rc > 0)
+ rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
cleanup:
posix_acl_release(acl);
} else
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index 2743427..e49e731 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -427,16 +427,12 @@
}
if (!dfacl)
return 0;
- acl = posix_acl_clone(dfacl, GFP_KERNEL);
- error = -ENOMEM;
- if (!acl)
- goto out_release_dfacl;
- error = posix_acl_create_masq(acl, &mode);
+ acl = posix_acl_dup(dfacl);
+ error = posix_acl_create(&acl, GFP_KERNEL, &mode);
if (error < 0)
- goto out_release_acl;
+ goto out_release_dfacl;
error = nfs3_proc_setacls(inode, acl, S_ISDIR(inode->i_mode) ?
dfacl : NULL);
-out_release_acl:
posix_acl_release(acl);
out_release_dfacl:
posix_acl_release(dfacl);
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index dd0296a..480200e 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -382,8 +382,6 @@
}
}
if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) {
- struct posix_acl *clone;
-
if (S_ISDIR(inode->i_mode)) {
ret = ocfs2_set_acl(handle, inode, di_bh,
ACL_TYPE_DEFAULT, acl,
@@ -391,28 +389,22 @@
if (ret)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- ret = -ENOMEM;
- if (!clone)
- goto cleanup;
-
mode = inode->i_mode;
- ret = posix_acl_create_masq(clone, &mode);
- if (ret >= 0) {
- ret2 = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
- if (ret2) {
- mlog_errno(ret2);
- ret = ret2;
- posix_acl_release(clone);
- goto cleanup;
- }
- if (ret > 0) {
- ret = ocfs2_set_acl(handle, inode,
- di_bh, ACL_TYPE_ACCESS,
- clone, meta_ac, data_ac);
- }
+ ret = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (ret < 0)
+ return ret;
+
+ ret2 = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
+ if (ret2) {
+ mlog_errno(ret2);
+ ret = ret2;
+ goto cleanup;
}
- posix_acl_release(clone);
+ if (ret > 0) {
+ ret = ocfs2_set_acl(handle, inode,
+ di_bh, ACL_TYPE_ACCESS,
+ acl, meta_ac, data_ac);
+ }
}
cleanup:
posix_acl_release(acl);
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 0aa9f16..365a071 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -388,6 +388,24 @@
}
int
+posix_acl_create(struct posix_acl **acl, gfp_t gfp, mode_t *mode_p)
+{
+ struct posix_acl *clone = posix_acl_clone(*acl, gfp);
+ int err = -ENOMEM;
+ if (clone) {
+ err = posix_acl_create_masq(clone, mode_p);
+ if (err < 0) {
+ posix_acl_release(clone);
+ clone = NULL;
+ }
+ }
+ posix_acl_release(*acl);
+ *acl = clone;
+ return err;
+}
+EXPORT_SYMBOL(posix_acl_create);
+
+int
posix_acl_chmod(struct posix_acl **acl, gfp_t gfp, mode_t mode)
{
struct posix_acl *clone = posix_acl_clone(*acl, gfp);
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 26b08ac..7362cf4 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -354,9 +354,7 @@
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 @@
/* 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 {
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index 4c55412..2827bbd 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -282,29 +282,23 @@
* No need for i_mutex because the inode is not yet exposed to the VFS.
*/
int
-xfs_inherit_acl(struct inode *inode, struct posix_acl *default_acl)
+xfs_inherit_acl(struct inode *inode, struct posix_acl *acl)
{
- struct posix_acl *clone;
- mode_t mode;
+ mode_t mode = inode->i_mode;
int error = 0, inherit = 0;
if (S_ISDIR(inode->i_mode)) {
- error = xfs_set_acl(inode, ACL_TYPE_DEFAULT, default_acl);
+ error = xfs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
if (error)
- return error;
+ goto out;
}
- clone = posix_acl_clone(default_acl, GFP_KERNEL);
- if (!clone)
- return -ENOMEM;
-
- mode = inode->i_mode;
- error = posix_acl_create_masq(clone, &mode);
+ error = posix_acl_create(&acl, GFP_KERNEL, &mode);
if (error < 0)
- goto out_release_clone;
+ return error;
/*
- * If posix_acl_create_masq returns a positive value we need to
+ * If posix_acl_create returns a positive value we need to
* inherit a permission that can't be represented using the Unix
* mode bits and we actually need to set an ACL.
*/
@@ -313,13 +307,13 @@
error = xfs_set_mode(inode, mode);
if (error)
- goto out_release_clone;
+ goto out;
if (inherit)
- error = xfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
+ error = xfs_set_acl(inode, ACL_TYPE_ACCESS, acl);
- out_release_clone:
- posix_acl_release(clone);
+out:
+ posix_acl_release(acl);
return error;
}
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index de66691..77463dd 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -202,9 +202,9 @@
if (default_acl) {
error = -xfs_inherit_acl(inode, default_acl);
+ default_acl = NULL;
if (unlikely(error))
goto out_cleanup_inode;
- posix_acl_release(default_acl);
}
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index 7a74d37..0ae0e4a 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -80,6 +80,7 @@
extern int posix_acl_equiv_mode(const struct posix_acl *, mode_t *);
extern int posix_acl_create_masq(struct posix_acl *, mode_t *);
extern int posix_acl_chmod_masq(struct posix_acl *, mode_t);
+extern int posix_acl_create(struct posix_acl **, gfp_t, mode_t *);
extern int posix_acl_chmod(struct posix_acl **, gfp_t, mode_t);
extern struct posix_acl *get_posix_acl(struct inode *, int);