TAKE - fix a race in the previous change

xfs

TAKE - fix a race in the previous change

Subject:	TAKE - fix a race in the previous change
From:	Steve Lord <lord@xxxxxxx>
Date:	Tue, 11 Dec 2001 15:42:42 -0600
Sender:	owner-linux-xfs@xxxxxxxxxxx

If two threads attempt to clean the buffer at once (a truncate
has to happen I think) then we end up with a clean buffer and
the previous code would trip a bug macro.

Date:  Tue Dec 11 13:42:45 PST 2001
Workarea:  jen.americas.sgi.com:/src/lord/xfs-linux.2.4

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.x-xfs


Modid:  2.4.x-xfs:slinx:108253a
linux/fs/pagebuf/page_buf_io.c - 1.104
        - And now deal with the case where a buffer is cleaned before we get 
the lock

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