[alc at FreeBSD.org: cvs commit: src/sys/vm vm_page.c vm_pageout.c]

[Xin LI]

Hi,

Please take a look at the following commit, as well as

http://lists.freebsd.org/pipermail/cvs-all/2004-February/047981.html

Hope this is helpful :)


----- Forwarded message from Alan Cox <alc at xxxxxxxxxxx> -----

Date: Sat, 14 Feb 2004 00:54:38 -0800 (PST)
From: Alan Cox <alc at xxxxxxxxxxx>
	cvs-all at xxxxxxxxxxx
Subject: cvs commit: src/sys/vm vm_page.c vm_pageout.c
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alc         2004/02/14 00:54:38 PST

  FreeBSD src repository

  Modified files:
    sys/vm               vm_page.c vm_pageout.c 
  Log:
   - Correct a long-standing race condition in vm_page_try_to_cache() that
     could result in a panic "vm_page_cache: caching a dirty page, ...":
     Access to the page must be restricted or removed before calling
     vm_page_cache().  This race condition is identical in nature to that
     which was addressed by vm_pageout.c's revision 1.251.
   - Simplify the code surrounding the fix to this same race condition
     in vm_pageout.c's revision 1.251.  There should be no behavioral
     change.  Reviewed by: tegge
  
  MFC after:      7 days
  
  Revision  Changes    Path
  1.275     +1 -1      src/sys/vm/vm_page.c
  1.252     +2 -3      src/sys/vm/vm_pageout.c
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Best regards,
--
Xin LI <delphij frontfree net>	http://www.delphij.net/
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