[PATCH v4 3/8] xfs: only call posix_acl_create under CONFIG_XFS_POSIX_ACL

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Since xfs_generic_create only calls xfs_set_acl when enable this kconfig, we
don't need to call posix_acl_create for the !CONFIG_XFS_POSIX_ACL case.

The previous patch has added missing umask strip for tmpfile, so all creation
paths handle umask in the vfs directly if the filesystem doesn't support or
enable POSIX ACLs.

So just put this function under CONFIG_XFS_POSIX_ACL and umask strip still works
well.

Also use unified rule for CONFIG_XFS_POSIX_ACL in this file, so use IS_ENABLED in
xfs_generic_create.

Signed-off-by: Yang Xu <xuyang2018.jy@xxxxxxxxxxx>
---
 fs/xfs/xfs_iops.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index b34e8e4344a8..6b8df9ab215a 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -150,6 +150,7 @@ xfs_create_need_xattr(
 		return true;
 	if (default_acl)
 		return true;
+
 #if IS_ENABLED(CONFIG_SECURITY)
 	if (dir->i_sb->s_security)
 		return true;
@@ -169,7 +170,7 @@ xfs_generic_create(
 {
 	struct inode	*inode;
 	struct xfs_inode *ip = NULL;
-	struct posix_acl *default_acl, *acl;
+	struct posix_acl *default_acl = NULL, *acl = NULL;
 	struct xfs_name	name;
 	int		error;
 
@@ -184,9 +185,11 @@ xfs_generic_create(
 		rdev = 0;
 	}
 
+#if IS_ENABLED(CONFIG_XFS_POSIX_ACL)
 	error = posix_acl_create(dir, &mode, &default_acl, &acl);
 	if (error)
 		return error;
+#endif
 
 	/* Verify mode is valid also for tmpfile case */
 	error = xfs_dentry_mode_to_name(&name, dentry, mode);
@@ -209,7 +212,7 @@ xfs_generic_create(
 	if (unlikely(error))
 		goto out_cleanup_inode;
 
-#ifdef CONFIG_XFS_POSIX_ACL
+#if IS_ENABLED(CONFIG_XFS_POSIX_ACL)
 	if (default_acl) {
 		error = __xfs_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
 		if (error)
-- 
2.27.0




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