ceph: make ceph_update_writeable_page() uninterruptible
ceph_update_writeable_page() is used by ceph_write_begin(). It beaks atomicity of write operation if it's interruptible. Signed-off-by: Yan, Zheng <zyan@redhat.com>
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@ -1168,7 +1168,7 @@ retry_locked:
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snapc = ceph_get_snap_context(snapc);
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unlock_page(page);
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ceph_queue_writeback(inode);
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r = wait_event_interruptible(ci->i_cap_wq,
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r = wait_event_killable(ci->i_cap_wq,
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context_is_writeable_or_written(inode, snapc));
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ceph_put_snap_context(snapc);
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if (r == -ERESTARTSYS)
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