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ceph: add request to the tail of unsafe write list 

In sync_write_wait(), we assume that the newest request is at the
tail of unsafe write list. We should maintain the semantics here.

Signed-off-by: Henry C Chang <henry_c_chang@tcloudcomputing.com>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Henry C Chang 2011-03-15 09:18:02 +00:00 committed by Sage Weil
parent 78a255654f
commit 49bcb93236
1 changed files with 2 additions and 1 deletions
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3
fs/ceph/file.c
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@ -564,7 +564,8 @@ more:
* start_request so that a tid has been assigned.
*/
spin_lock(&ci->i_unsafe_lock);
list_add(&req->r_unsafe_item, &ci->i_unsafe_writes);
list_add_tail(&req->r_unsafe_item,
&ci->i_unsafe_writes);
spin_unlock(&ci->i_unsafe_lock);
ceph_get_cap_refs(ci, CEPH_CAP_FILE_WR);
}