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| author | Miklos Szeredi <mszeredi@redhat.com> | 2018-07-06 23:57:06 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2018-07-18 15:44:42 +0200 |
| commit | a6518f73e60e5044656d1ba587e7463479a9381a (patch) | |
| tree | b7105c1ee7e5abffba3d450d2df6c157f806d1aa | |
| parent | 8ede205541ff05bd096749a9f00bde6d754b4e22 (diff) | |
| download | lwn-a6518f73e60e5044656d1ba587e7463479a9381a.tar.gz lwn-a6518f73e60e5044656d1ba587e7463479a9381a.zip | |
vfs: don't open real
Let overlayfs do its thing when opening a file.
This enables stacking and fixes the corner case when a file is opened for
read, modified through a writable open, and data is read from the read-only
file. After this patch the read-only open will not return stale data even
in this case.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/open.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/fs/open.c b/fs/open.c index 9c6617dbb2c0..fed24862ef83 100644 --- a/fs/open.c +++ b/fs/open.c @@ -893,13 +893,8 @@ EXPORT_SYMBOL(file_path); */ int vfs_open(const struct path *path, struct file *file) { - struct dentry *dentry = d_real(path->dentry, NULL, file->f_flags, 0); - - if (IS_ERR(dentry)) - return PTR_ERR(dentry); - file->f_path = *path; - return do_dentry_open(file, d_backing_inode(dentry), NULL); + return do_dentry_open(file, d_backing_inode(path->dentry), NULL); } struct file *dentry_open(const struct path *path, int flags, |