| commit | a6795a585929d94ca3e931bc8518f8deb8bbe627 | |
| author | Miklos Szeredi <mszeredi@redhat.com> | |
| Wed, 18 Jul 2018 13:44:43 +0000 (18 15:44 +0200) | ||
| committer | Miklos Szeredi <mszeredi@redhat.com> | |
| Wed, 18 Jul 2018 13:44:43 +0000 (18 15:44 +0200) | ||
| tree | 2100887e833fb600b0ff58fd2de05beb83b24d34 | treesnapshot (tar.gz zip) |
| parent | 6742cee04353231015ddbe7e8b404ac9c1eb4473 | commitdiff |
vfs: fix freeze protection in mnt_want_write_file() for overlayfs
The underlying real file used by overlayfs still contains the overlay path.
This results in mnt_want_write_file() calls by the filesystem getting
freeze protection on the wrong inode (the overlayfs one instead of the real
one).
Fix by using file_inode(file)->i_sb instead of file->f_path.mnt->mnt_sb.
Reported-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
The underlying real file used by overlayfs still contains the overlay path.
This results in mnt_want_write_file() calls by the filesystem getting
freeze protection on the wrong inode (the overlayfs one instead of the real
one).
Fix by using file_inode(file)->i_sb instead of file->f_path.mnt->mnt_sb.
Reported-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
| fs/namespace.c | diffblobblamehistory |