Merge tag 'apparmor-pr-2019-12-03' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / fs / open.c

diff --git a/fs/open.c b/fs/open.c
index 5c68282..b62f5c0 100644 (file)
--- a/fs/open.c
+++ b/fs/open.c
@@ -771,6 +771,10 @@ static int do_dentry_open(struct file *f,
                f->f_mode |= FMODE_WRITER;
        }
 
+       /* POSIX.1-2008/SUSv4 Section XSI 2.9.7 */
+       if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))
+               f->f_mode |= FMODE_ATOMIC_POS;
+
        f->f_op = fops_get(inode->i_fop);
        if (WARN_ON(!f->f_op)) {
                error = -ENODEV;
@@ -1252,7 +1256,7 @@ EXPORT_SYMBOL(nonseekable_open);
  */
 int stream_open(struct inode *inode, struct file *filp)
 {
-       filp->f_mode &= ~(FMODE_LSEEK | FMODE_PREAD | FMODE_PWRITE);
+       filp->f_mode &= ~(FMODE_LSEEK | FMODE_PREAD | FMODE_PWRITE | FMODE_ATOMIC_POS);
        filp->f_mode |= FMODE_STREAM;
        return 0;
 }