Date: Fri, 9 Nov 2001 13:34:45 -0800 (PST) From: Matt Dillon <dillon@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/vm vm_fault.c Message-ID: <200111092134.fA9LYjM51370@freefall.freebsd.org>
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dillon 2001/11/09 13:34:45 PST
Modified files:
sys/vm vm_fault.c
Log:
Fix deadlock introduced in 1.73 (Jan 1998). The paging-in-progress count
on a vnode-backed object must be incremented *after* obtaining the vnode
lock. If it is bumped before obtaining the vnode lock we can deadlock
against vtruncbuf().
Submitted by: peter, ps
MFC after: 3 days
Revision Changes Path
1.127 +5 -1 src/sys/vm/vm_fault.c
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