ceph: invalidate dirty pages after forced umount
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>
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@ -719,6 +719,8 @@ static int ceph_writepages_start(struct address_space *mapping,
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if (ACCESS_ONCE(fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
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pr_warn("writepage_start %p on forced umount\n", inode);
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truncate_pagecache(inode, 0);
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mapping_set_error(mapping, -EIO);
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return -EIO; /* we're in a forced umount, don't write! */
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}
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if (fsc->mount_options->wsize && fsc->mount_options->wsize < wsize)
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