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do_last(): rejoin the common path even earlier in FMODE_{OPENED,CREATED} case

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... getting may_create_in_sticky() checks in FMODE_OPENED case as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2020-01-26 10:48:16 -05:00
parent 8795e7d482
commit 973d4b73fb
1 changed files with 4 additions and 10 deletions
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14
fs/namei.c
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@ -3199,14 +3199,7 @@ static const char *do_last(struct nameidata *nd,
if (IS_ERR(dentry))
return ERR_CAST(dentry);
if (file->f_mode & FMODE_OPENED) {
audit_inode(nd->name, file->f_path.dentry, 0);
dput(nd->path.dentry);
nd->path.dentry = dentry;
goto finish_open_created;
}
if (file->f_mode & FMODE_CREATED) {
if (file->f_mode & (FMODE_OPENED | FMODE_CREATED)) {
dput(nd->path.dentry);
nd->path.dentry = dentry;
goto finish_open_created;
@ -3230,7 +3223,9 @@ static const char *do_last(struct nameidata *nd,
error = complete_walk(nd);
if (error)
return ERR_PTR(error);
audit_inode(nd->name, nd->path.dentry, 0);
finish_open_created:
if (!(file->f_mode & FMODE_CREATED))
audit_inode(nd->name, nd->path.dentry, 0);
if (open_flag & O_CREAT) {
if (d_is_dir(nd->path.dentry))
return ERR_PTR(-EISDIR);
@ -3242,7 +3237,6 @@ static const char *do_last(struct nameidata *nd,
if ((nd->flags & LOOKUP_DIRECTORY) && !d_can_lookup(nd->path.dentry))
return ERR_PTR(-ENOTDIR);
finish_open_created:
do_truncate = false;
acc_mode = op->acc_mode;
if (file->f_mode & FMODE_CREATED) {