Date: Wed, 11 Aug 2004 01:27:53 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern vfs_subr.c Message-ID: <200408110127.i7B1Rrjx045344@repoman.freebsd.org>
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rwatson 2004-08-11 01:27:53 UTC
FreeBSD src repository
Modified files:
sys/kern vfs_subr.c
Log:
In v_addpollinfo(), we allocate storage to back vp->v_pollinfo. However,
we may sleep when doing so; check that we didn't race with another thread
allocating storage for the vnode after allocation is made to a local
pointer, and only update the vnode pointer if it's still NULL. Otherwise,
accept that another thread got there first, and release the local storage.
Discussed with: jmg
Revision Changes Path
1.520 +7 -1 src/sys/kern/vfs_subr.c
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