Date: Fri, 21 Sep 2018 13:20:41 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r338855 - head/sys/kern Message-ID: <201809211320.w8LDKfmP050911@repo.freebsd.org>
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Author: mjg Date: Fri Sep 21 13:20:41 2018 New Revision: 338855 URL: https://svnweb.freebsd.org/changeset/base/338855 Log: select: stop doing zero-sized memsets Approved by: re (kib) Modified: head/sys/kern/sys_generic.c Modified: head/sys/kern/sys_generic.c ============================================================================== --- head/sys/kern/sys_generic.c Fri Sep 21 13:02:25 2018 (r338854) +++ head/sys/kern/sys_generic.c Fri Sep 21 13:20:41 2018 (r338855) @@ -1031,8 +1031,9 @@ kern_select(struct thread *td, int nd, fd_set *fd_in, error = copyin(name, ibits[x], ncpubytes); \ if (error != 0) \ goto done; \ - bzero((char *)ibits[x] + ncpubytes, \ - ncpbytes - ncpubytes); \ + if (ncpbytes != ncpubytes) \ + bzero((char *)ibits[x] + ncpubytes, \ + ncpbytes - ncpubytes); \ } \ } while (0) getbits(fd_in, 0);
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