Date: Mon, 15 Mar 2004 17:28:45 -0800 (PST) From: Don Lewis <truckman@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_sysctl.c Message-ID: <200403160128.i2G1Sjq8048930@repoman.freebsd.org>
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truckman 2004/03/15 17:28:45 PST
FreeBSD src repository
Modified files:
sys/kern kern_sysctl.c
Log:
Don't bother calling vslock() and vsunlock() if oldlen is zero.
If vslock() returns ENOMEM, sysctl_wire_old_buffer() should set
wiredlen to zero and return zero (success) so that the handler will
operate according to sysctl(3):
The size of the buffer is given by the location specified by
oldlenp before the call, and that location gives the amount
of data copied after a successful call and after a call that
returns with the error code ENOMEM.
The handler will return an ENOMEM error because the zero length
buffer will overflow.
Revision Changes Path
1.154 +9 -7 src/sys/kern/kern_sysctl.c
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