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ceph: invalidate dirty pages after forced umount

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After forced umount, ceph_writepages_start() skips flushing dirty
pages. To make sure inode's reference count get dropped to zero,
we need to invalidate dirty pages.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
This commit is contained in:
Yan, Zheng 2015-07-01 17:03:23 +08:00 committed by Ilya Dryomov
parent 48fec5d0a5
commit a341d4df87
1 changed files with 2 additions and 0 deletions
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2
fs/ceph/addr.c
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@ -719,6 +719,8 @@ static int ceph_writepages_start(struct address_space *mapping,
if (ACCESS_ONCE(fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
pr_warn("writepage_start %p on forced umount\n", inode);
truncate_pagecache(inode, 0);
mapping_set_error(mapping, -EIO);
return -EIO; /* we're in a forced umount, don't write! */
}
if (fsc->mount_options->wsize && fsc->mount_options->wsize < wsize)