| commit | 86eaa13046d5e814484c89f635a95b0342b765ad | |
| author | Amir Goldstein <amir73il@gmail.com> | |
| Tue, 21 Nov 2017 11:55:51 +0000 (21 13:55 +0200) | ||
| committer | Miklos Szeredi <mszeredi@redhat.com> | |
| Wed, 24 Jan 2018 10:25:52 +0000 (24 11:25 +0100) | ||
| tree | 189e380030e95f8267ea015c1c9b3698828ef696 | treesnapshot (tar.gz zip) |
| parent | 37b12916c0f802d956c767db984801d3100c6524 | commitdiff |
ovl: unbless lower st_ino of unverified origin
On a malformed overlay, several redirected dirs can point to the same
dir on a lower layer. This presents a similar challenge as broken
hardlinks, because different objects in the overlay can return the same
st_ino/st_dev pair from stat(2).
For broken hardlinks, we do not provide constant st_ino on copy up to
avoid this inconsistency. When NFS export feature is enabled, apply
the same logic to files and directories with unverified lower origin.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
On a malformed overlay, several redirected dirs can point to the same
dir on a lower layer. This presents a similar challenge as broken
hardlinks, because different objects in the overlay can return the same
st_ino/st_dev pair from stat(2).
For broken hardlinks, we do not provide constant st_ino on copy up to
avoid this inconsistency. When NFS export feature is enabled, apply
the same logic to files and directories with unverified lower origin.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
| fs/overlayfs/inode.c | diffblobblamehistory |