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kill boilerplates around posix_acl_create_masq()

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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 <[email protected]>
This commit is contained in:
Al Viro 2011-07-23 03:10:32 -04:00
commit 826cae2f2b
16 changed files with 116 additions and 204 deletions
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23
fs/jfs/acl.c
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@ -133,8 +133,6 @@ int jfs_check_acl(struct inode *inode, int mask)
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 @@ int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
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