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ceph: stop sending FLUSHSNAPs when we hit a dirty capsnap 

Stop sending FLUSHSNAP messages when we hit a capsnap that has dirty_pages
or is still writing.  We'll send the newer capsnaps only after the older
ones complete.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-09-14 15:50:59 -07:00
parent 8bef9239ee
commit cfc0bf6640
1 changed files with 3 additions and 3 deletions
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6
fs/ceph/caps.c
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@ -1227,7 +1227,7 @@ retry:
* pages to be written out.
*/
if (capsnap->dirty_pages || capsnap->writing)
continue;
break;
/*
* if cap writeback already occurred, we should have dropped
@ -1276,8 +1276,8 @@ retry:
&session->s_cap_snaps_flushing);
spin_unlock(&inode->i_lock);
dout("flush_snaps %p cap_snap %p follows %lld size %llu\n",
inode, capsnap, next_follows, capsnap->size);
dout("flush_snaps %p cap_snap %p follows %lld tid %llu\n",
inode, capsnap, capsnap->follows, capsnap->flush_tid);
send_cap_msg(session, ceph_vino(inode).ino, 0,
CEPH_CAP_OP_FLUSHSNAP, capsnap->issued, 0,
capsnap->dirty, 0, capsnap->flush_tid, 0, mseq,