diff options
| -rw-r--r-- | fs/namei.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/namei.c b/fs/namei.c index 0dc4cbf21f3..22eb5484774 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2656,6 +2656,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, int acc_mode; int create_error = 0; struct dentry *const DENTRY_NOT_SET = (void *) -1UL; + bool excl; BUG_ON(dentry->d_inode); @@ -2669,10 +2670,9 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, if ((open_flag & O_CREAT) && !IS_POSIXACL(dir)) mode &= ~current_umask(); - if ((open_flag & (O_EXCL | O_CREAT)) == (O_EXCL | O_CREAT)) { + excl = (open_flag & (O_EXCL | O_CREAT)) == (O_EXCL | O_CREAT); + if (excl) open_flag &= ~O_TRUNC; - *opened |= FILE_CREATED; - } /* * Checking write permission is tricky, bacuse we don't know if we are @@ -2726,7 +2726,11 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, } acc_mode = op->acc_mode; + if (WARN_ON(excl && !(*opened & FILE_CREATED))) + *opened |= FILE_CREATED; + if (*opened & FILE_CREATED) { + WARN_ON(!(open_flag & O_CREAT)); fsnotify_create(dir, dentry); acc_mode = MAY_OPEN; } @@ -2740,6 +2744,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, dput(dentry); dentry = file->f_path.dentry; } + WARN_ON(!dentry->d_inode && (*opened & FILE_CREATED)); if (create_error && dentry->d_inode == NULL) { error = create_error; goto out; |