kill boilerplate around posix_acl_chmod_masq()
new helper: posix_acl_chmod(&acl, gfp, mode). Replaces acl with modified
clone or with NULL if that has failed; returns 0 or -ve on error. All
callers of posix_acl_chmod_masq() switched to that - they'd been doing
exactly the same thing.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index df4d7a1..d7211e2 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -162,21 +162,18 @@
int v9fs_acl_chmod(struct dentry *dentry)
{
int retval = 0;
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
struct inode *inode = dentry->d_inode;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = v9fs_get_cached_acl(inode, ACL_TYPE_ACCESS);
if (acl) {
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ retval = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (retval)
+ return retval;
+ retval = v9fs_set_acl(dentry, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- retval = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!retval)
- retval = v9fs_set_acl(dentry, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
}
return retval;
}
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index c13ea9f..88bca53 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -272,7 +272,7 @@
int btrfs_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int ret = 0;
if (S_ISLNK(inode->i_mode))
@@ -285,17 +285,11 @@
if (IS_ERR_OR_NULL(acl))
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ ret = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (ret)
+ return ret;
+ ret = btrfs_set_acl(NULL, inode, acl, ACL_TYPE_ACCESS);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
-
- ret = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!ret)
- ret = btrfs_set_acl(NULL, inode, clone, ACL_TYPE_ACCESS);
-
- posix_acl_release(clone);
-
return ret;
}
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index ced1c47..1226dbc 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -316,7 +316,7 @@
int
ext2_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int error;
if (!test_opt(inode->i_sb, POSIX_ACL))
@@ -326,14 +326,11 @@
acl = ext2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+ error = ext2_set_acl(inode, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error)
- error = ext2_set_acl(inode, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
return error;
}
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 5326038..7ea638a 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -326,7 +326,9 @@
int
ext3_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
+ handle_t *handle;
+ int retries = 0;
int error;
if (S_ISLNK(inode->i_mode))
@@ -336,31 +338,24 @@
acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error) {
- handle_t *handle;
- int retries = 0;
-
- retry:
- handle = ext3_journal_start(inode,
- EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
- if (IS_ERR(handle)) {
- error = PTR_ERR(handle);
- ext3_std_error(inode->i_sb, error);
- goto out;
- }
- error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
- ext3_journal_stop(handle);
- if (error == -ENOSPC &&
- ext3_should_retry_alloc(inode->i_sb, &retries))
- goto retry;
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+retry:
+ handle = ext3_journal_start(inode,
+ EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
+ if (IS_ERR(handle)) {
+ error = PTR_ERR(handle);
+ ext3_std_error(inode->i_sb, error);
+ goto out;
}
+ error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
+ ext3_journal_stop(handle);
+ if (error == -ENOSPC &&
+ ext3_should_retry_alloc(inode->i_sb, &retries))
+ goto retry;
out:
- posix_acl_release(clone);
+ posix_acl_release(acl);
return error;
}
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 4cd9e2e..e38a204 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -324,9 +324,12 @@
int
ext4_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
+ handle_t *handle;
+ int retries = 0;
int error;
+
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
if (!test_opt(inode->i_sb, POSIX_ACL))
@@ -334,31 +337,24 @@
acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error) {
- handle_t *handle;
- int retries = 0;
-
- retry:
- handle = ext4_journal_start(inode,
- EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
- if (IS_ERR(handle)) {
- error = PTR_ERR(handle);
- ext4_std_error(inode->i_sb, error);
- goto out;
- }
- error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
- ext4_journal_stop(handle);
- if (error == -ENOSPC &&
- ext4_should_retry_alloc(inode->i_sb, &retries))
- goto retry;
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+retry:
+ handle = ext4_journal_start(inode,
+ EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
+ if (IS_ERR(handle)) {
+ error = PTR_ERR(handle);
+ ext4_std_error(inode->i_sb, error);
+ goto out;
}
+ error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
+ ext4_journal_stop(handle);
+ if (error == -ENOSPC &&
+ ext4_should_retry_alloc(inode->i_sb, &retries))
+ goto retry;
out:
- posix_acl_release(clone);
+ posix_acl_release(acl);
return error;
}
diff --git a/fs/generic_acl.c b/fs/generic_acl.c
index 4949473..3a60d9d 100644
--- a/fs/generic_acl.c
+++ b/fs/generic_acl.c
@@ -170,21 +170,18 @@
int
generic_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int error = 0;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = get_cached_acl(inode, ACL_TYPE_ACCESS);
if (acl) {
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+ set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error)
- set_cached_acl(inode, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
}
return error;
}
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 48171f4..160d4e1 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -187,7 +187,7 @@
int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
char *data;
unsigned int len;
int error;
@@ -198,25 +198,19 @@
if (!acl)
return gfs2_setattr_simple(ip, attr);
- clone = posix_acl_clone(acl, GFP_NOFS);
- error = -ENOMEM;
- if (!clone)
- goto out;
- posix_acl_release(acl);
- acl = clone;
+ error = posix_acl_chmod(&acl, GFP_NOFS, attr->ia_mode);
+ if (error)
+ return error;
- error = posix_acl_chmod_masq(acl, attr->ia_mode);
- if (!error) {
- len = posix_acl_to_xattr(acl, NULL, 0);
- data = kmalloc(len, GFP_NOFS);
- error = -ENOMEM;
- if (data == NULL)
- goto out;
- posix_acl_to_xattr(acl, data, len);
- error = gfs2_xattr_acl_chmod(ip, attr, data);
- kfree(data);
- set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
- }
+ len = posix_acl_to_xattr(acl, NULL, 0);
+ data = kmalloc(len, GFP_NOFS);
+ error = -ENOMEM;
+ if (data == NULL)
+ goto out;
+ posix_acl_to_xattr(acl, data, len);
+ error = gfs2_xattr_acl_chmod(ip, attr, data);
+ kfree(data);
+ set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
out:
posix_acl_release(acl);
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 4933a8f..71d022d 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -332,7 +332,7 @@
int jffs2_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int rc;
if (S_ISLNK(inode->i_mode))
@@ -340,14 +340,11 @@
acl = jffs2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ rc = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (rc)
+ return rc;
+ rc = jffs2_set_acl(inode, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- rc = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!rc)
- rc = jffs2_set_acl(inode, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
return rc;
}
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index ead200e..89ced71 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -177,8 +177,9 @@
int jfs_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int rc;
+ tid_t tid;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
@@ -187,22 +188,18 @@
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ rc = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (rc)
+ return rc;
+
+ tid = txBegin(inode->i_sb, 0);
+ mutex_lock(&JFS_IP(inode)->commit_mutex);
+ rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
+ if (!rc)
+ rc = txCommit(tid, 1, &inode, 0);
+ txEnd(tid);
+ mutex_unlock(&JFS_IP(inode)->commit_mutex);
+
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
-
- rc = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!rc) {
- tid_t tid = txBegin(inode->i_sb, 0);
- mutex_lock(&JFS_IP(inode)->commit_mutex);
- rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, clone);
- if (!rc)
- rc = txCommit(tid, 1, &inode, 0);
- txEnd(tid);
- mutex_unlock(&JFS_IP(inode)->commit_mutex);
- }
-
- posix_acl_release(clone);
return rc;
}
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index aff23e5..dd0296a 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -327,7 +327,7 @@
int ocfs2_acl_chmod(struct inode *inode)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int ret;
if (S_ISLNK(inode->i_mode))
@@ -339,15 +339,12 @@
acl = ocfs2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ ret = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (ret)
+ return ret;
+ ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
+ acl, NULL, NULL);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- ret = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!ret)
- ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
- clone, NULL, NULL);
- posix_acl_release(clone);
return ret;
}
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index b1cf6bf..0aa9f16 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -386,3 +386,21 @@
return 0;
}
+
+int
+posix_acl_chmod(struct posix_acl **acl, gfp_t gfp, mode_t mode)
+{
+ struct posix_acl *clone = posix_acl_clone(*acl, gfp);
+ int err = -ENOMEM;
+ if (clone) {
+ err = posix_acl_chmod_masq(clone, mode);
+ if (err) {
+ posix_acl_release(clone);
+ clone = NULL;
+ }
+ }
+ posix_acl_release(*acl);
+ *acl = clone;
+ return err;
+}
+EXPORT_SYMBOL(posix_acl_chmod);
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 3dc38f1..26b08ac 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -445,7 +445,10 @@
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 +466,22 @@
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);
- if (!error) {
- struct reiserfs_transaction_handle th;
- size_t size = reiserfs_xattr_nblocks(inode,
- reiserfs_acl_size(clone->a_count));
- int depth;
+ error = posix_acl_chmod(&acl, GFP_NOFS, inode->i_mode);
+ if (error)
+ return error;
- 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);
+ 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) {
+ 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;
}
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index 13c4e4f..4c55412 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -326,7 +326,7 @@
int
xfs_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int error;
if (S_ISLNK(inode->i_mode))
@@ -336,16 +336,12 @@
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+
+ error = xfs_set_acl(inode, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
-
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error)
- error = xfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
-
- posix_acl_release(clone);
return error;
}