diff options
| author | Brian Behlendorf <[email protected]> | 2014-10-20 14:37:47 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2014-11-20 10:38:16 -0800 |
| commit | c944be5d7e619ad7259fdb5802f0f9bd90a22488 (patch) | |
| tree | 1fb3cf9abd4344b22eb8e338577259df94f4774e /module | |
| parent | 80c50365c21ea98ae78150f32c3f35e075815c44 (diff) | |
Fix snapshots with dirty inodes
Filesystems which are mounted read-only or are immutable because
they are snapshots must not be allowed to dirty and inode. This
will result in a write which will correctly cause a kernel panic
because these filesystem are (and must be) immutable.
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #2812
Diffstat (limited to 'module')
| -rw-r--r-- | module/zfs/zfs_vnops.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c index 2f55e562e..d05ccef39 100644 --- a/module/zfs/zfs_vnops.c +++ b/module/zfs/zfs_vnops.c @@ -3975,6 +3975,9 @@ zfs_dirty_inode(struct inode *ip, int flags) int error; int cnt = 0; + if (zfs_is_readonly(zsb) || dmu_objset_is_snapshot(zsb->z_os)) + return (0); + ZFS_ENTER(zsb); ZFS_VERIFY_ZP(zp); |