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Invalidate dcache and inode cache 

When performing a 'zfs rollback' it's critical to invalidate
the previous dcache and inode cache.  If we don't there will
stale cache entries which when accessed will result in EIOs.
This commit is contained in:
Brian Behlendorf 2011-02-04 16:54:34 -08:00
parent b3b4f547f9
commit ceb43b935d
1 changed files with 7 additions and 7 deletions
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14
module/zfs/zfs_vfsops.c
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@ -1071,17 +1071,17 @@ zfsvfs_teardown(zfs_sb_t *zsb, boolean_t unmounting)
rrw_enter(&zsb->z_teardown_lock, RW_WRITER, FTAG);
#ifdef HAVE_DNLC
if (!unmounting) {
/*
* We purge the parent filesystem's vfsp as the parent
* filesystem and all of its snapshots have their vnode's
* v_vfsp set to the parent's filesystem's vfsp. Note,
* 'z_parent' is self referential for non-snapshots.
* We purge the parent filesystem's super block as the
* parent filesystem and all of its snapshots have their
* inode's super block set to the parent's filesystem's
* super block. Note, 'z_parent' is self referential
* for non-snapshots.
*/
(void) dnlc_purge_vfsp(zsb->z_parent->z_vfs, 0);
shrink_dcache_sb(zsb->z_parent->z_sb);
invalidate_inodes(zsb->z_parent->z_sb);
}
#endif /* HAVE_DNLC */
/*
* Close the zil. NB: Can't close the zil while zfs_inactive