expand finish_open() in its only caller
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/namei.c b/fs/namei.c
index d1a5dfe..1f561dc 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2111,57 +2111,6 @@
return (flag & O_TRUNC);
}
-static struct file *finish_open(struct nameidata *nd,
- int open_flag, int acc_mode)
-{
- struct file *filp;
- int will_truncate;
- int error;
-
- will_truncate = open_will_truncate(open_flag, nd->path.dentry->d_inode);
- if (will_truncate) {
- error = mnt_want_write(nd->path.mnt);
- if (error)
- goto exit;
- }
- error = may_open(&nd->path, acc_mode, open_flag);
- if (error) {
- if (will_truncate)
- mnt_drop_write(nd->path.mnt);
- goto exit;
- }
- filp = nameidata_to_filp(nd);
- if (!IS_ERR(filp)) {
- error = ima_file_check(filp, acc_mode);
- if (error) {
- fput(filp);
- filp = ERR_PTR(error);
- }
- }
- if (!IS_ERR(filp)) {
- if (will_truncate) {
- error = handle_truncate(filp);
- if (error) {
- fput(filp);
- filp = ERR_PTR(error);
- }
- }
- }
- /*
- * It is now safe to drop the mnt write
- * because the filp has had a write taken
- * on its behalf.
- */
- if (will_truncate)
- mnt_drop_write(nd->path.mnt);
- path_put(&nd->path);
- return filp;
-
-exit:
- path_put(&nd->path);
- return ERR_PTR(error);
-}
-
/*
* Handle the last step of open()
*/
@@ -2169,6 +2118,7 @@
const struct open_flags *op, const char *pathname)
{
struct dentry *dir = nd->path.dentry;
+ int will_truncate;
struct file *filp;
struct inode *inode;
int error;
@@ -2329,7 +2279,43 @@
if (S_ISDIR(nd->inode->i_mode))
goto exit;
ok:
- filp = finish_open(nd, op->open_flag, op->acc_mode);
+ will_truncate = open_will_truncate(op->open_flag, nd->path.dentry->d_inode);
+ if (will_truncate) {
+ error = mnt_want_write(nd->path.mnt);
+ if (error)
+ goto exit;
+ }
+ error = may_open(&nd->path, op->acc_mode, op->open_flag);
+ if (error) {
+ if (will_truncate)
+ mnt_drop_write(nd->path.mnt);
+ goto exit;
+ }
+ filp = nameidata_to_filp(nd);
+ if (!IS_ERR(filp)) {
+ error = ima_file_check(filp, op->acc_mode);
+ if (error) {
+ fput(filp);
+ filp = ERR_PTR(error);
+ }
+ }
+ if (!IS_ERR(filp)) {
+ if (will_truncate) {
+ error = handle_truncate(filp);
+ if (error) {
+ fput(filp);
+ filp = ERR_PTR(error);
+ }
+ }
+ }
+ /*
+ * It is now safe to drop the mnt write
+ * because the filp has had a write taken
+ * on its behalf.
+ */
+ if (will_truncate)
+ mnt_drop_write(nd->path.mnt);
+ path_put(&nd->path);
return filp;
exit_mutex_unlock: