From dafb14e8a8a1d97986993216f67b5f95ccbfe922 Mon Sep 17 00:00:00 2001 From: Michael Shalayeff Date: Sat, 22 Nov 2003 14:17:33 +0000 Subject: madvise() -- take two --- usr.bin/xinstall/xinstall.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'usr.bin/xinstall') diff --git a/usr.bin/xinstall/xinstall.c b/usr.bin/xinstall/xinstall.c index efd558c3804..bc231e60040 100644 --- a/usr.bin/xinstall/xinstall.c +++ b/usr.bin/xinstall/xinstall.c @@ -1,4 +1,4 @@ -/* $OpenBSD: xinstall.c,v 1.38 2003/11/22 13:40:28 grange Exp $ */ +/* $OpenBSD: xinstall.c,v 1.39 2003/11/22 14:17:32 mickey Exp $ */ /* $NetBSD: xinstall.c,v 1.9 1995/12/20 10:25:17 jonathan Exp $ */ /* @@ -40,7 +40,7 @@ static char copyright[] = #if 0 static char sccsid[] = "@(#)xinstall.c 8.1 (Berkeley) 7/21/93"; #endif -static char rcsid[] = "$OpenBSD: xinstall.c,v 1.38 2003/11/22 13:40:28 grange Exp $"; +static char rcsid[] = "$OpenBSD: xinstall.c,v 1.39 2003/11/22 14:17:32 mickey Exp $"; #endif /* not lint */ #include @@ -438,6 +438,8 @@ copy(int from_fd, char *from_name, int to_fd, char *to_name, off_t size, (void)unlink(to_name); errx(EX_OSERR, "%s: %s", from_name, strerror(serrno)); } + if (size) + madvise(p, size, MADV_SEQUENTIAL); siz = (size_t)size; if ((nw = write(to_fd, p, siz)) != siz) { serrno = errno; @@ -514,6 +516,10 @@ compare(int from_fd, const char *from_name, size_t from_len, int to_fd, if ((p2 = mmap(NULL, length, PROT_READ, MAP_PRIVATE, to_fd, to_off)) == MAP_FAILED) err(EX_OSERR, "%s", to_name); + if (length) { + madvise(p1, length, MADV_SEQUENTIAL); + madvise(p2, length, MADV_SEQUENTIAL); + } dfound = memcmp(p1, p2, length); -- cgit v1.2.3