Date: Fri, 25 Mar 2011 16:38:10 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/vm vm_fault.c Message-ID: <201103251638.p2PGcPYY033393@repoman.freebsd.org>
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kib 2011-03-25 16:38:10 UTC
FreeBSD src repository
Modified files:
sys/vm vm_fault.c
Log:
SVN rev 220001 on 2011-03-25 16:38:10Z by kib
Handle the corner case in vm_fault_quick_hold_pages().
If supplied length is zero, and user address is invalid, function
might return -1, due to the truncation and rounding of the address.
The callers interpret the situation as EFAULT. Instead of handling
the zero length in caller, filter it in vm_fault_quick_hold_pages().
Sponsored by: The FreeBSD Foundation
Reviewed by: alc
Revision Changes Path
1.289 +2 -0 src/sys/vm/vm_fault.c
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