[src/trunk]: src/sbin/fsck_ffs align buffers used for I/O to DEV_BSIZE so it'...

[jdolecek <jdolecek%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8d3aaf9d87cd
branches:  trunk
changeset: 930918:8d3aaf9d87cd
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Fri Apr 17 09:42:27 2020 +0000

description:
align buffers used for I/O to DEV_BSIZE so it's executed more optimally
when run for xbd(4) raw (character) device

diffstat:

 sbin/fsck_ffs/inode.c     |   6 +++---
 sbin/fsck_ffs/setup.c     |  21 ++++++++++++---------
 sbin/fsck_ffs/utilities.c |  10 +++++-----
 3 files changed, 20 insertions(+), 17 deletions(-)

diffs (143 lines):

diff -r f5aacb05391b -r 8d3aaf9d87cd sbin/fsck_ffs/inode.c
--- a/sbin/fsck_ffs/inode.c     Fri Apr 17 09:33:37 2020 +0000
+++ b/sbin/fsck_ffs/inode.c     Fri Apr 17 09:42:27 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: inode.c,v 1.72 2017/02/08 16:11:40 rin Exp $   */
+/*     $NetBSD: inode.c,v 1.73 2020/04/17 09:42:27 jdolecek Exp $      */
 
 /*
  * Copyright (c) 1980, 1986, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)inode.c    8.8 (Berkeley) 4/28/95";
 #else
-__RCSID("$NetBSD: inode.c,v 1.72 2017/02/08 16:11:40 rin Exp $");
+__RCSID("$NetBSD: inode.c,v 1.73 2020/04/17 09:42:27 jdolecek Exp $");
 #endif
 #endif /* not lint */
 
@@ -463,7 +463,7 @@
                partialsize = inobufsize;
        }
        if (inodebuf == NULL &&
-           (inodebuf = malloc((unsigned)inobufsize)) == NULL)
+           (inodebuf = aligned_alloc(DEV_BSIZE, (unsigned)inobufsize)) == NULL)
                errexit("Cannot allocate space for inode buffer");
 }
 
diff -r f5aacb05391b -r 8d3aaf9d87cd sbin/fsck_ffs/setup.c
--- a/sbin/fsck_ffs/setup.c     Fri Apr 17 09:33:37 2020 +0000
+++ b/sbin/fsck_ffs/setup.c     Fri Apr 17 09:42:27 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: setup.c,v 1.102 2018/10/05 09:49:23 hannken Exp $      */
+/*     $NetBSD: setup.c,v 1.103 2020/04/17 09:42:27 jdolecek Exp $     */
 
 /*
  * Copyright (c) 1980, 1986, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)setup.c    8.10 (Berkeley) 5/9/95";
 #else
-__RCSID("$NetBSD: setup.c,v 1.102 2018/10/05 09:49:23 hannken Exp $");
+__RCSID("$NetBSD: setup.c,v 1.103 2020/04/17 09:42:27 jdolecek Exp $");
 #endif
 #endif /* not lint */
 
@@ -126,10 +126,10 @@
        lfdir = 0;
        initbarea(&sblk);
        initbarea(&asblk);
-       sblk.b_un.b_buf = malloc(SBLOCKSIZE);
-       sblock = malloc(SBLOCKSIZE);
-       asblk.b_un.b_buf = malloc(SBLOCKSIZE);
-       altsblock = malloc(SBLOCKSIZE);
+       sblk.b_un.b_buf = aligned_alloc(DEV_BSIZE, SBLOCKSIZE);
+       sblock = aligned_alloc(DEV_BSIZE, SBLOCKSIZE);
+       asblk.b_un.b_buf = aligned_alloc(DEV_BSIZE, SBLOCKSIZE);
+       altsblock = aligned_alloc(DEV_BSIZE, SBLOCKSIZE);
        if (sblk.b_un.b_buf == NULL || asblk.b_un.b_buf == NULL ||
                sblock == NULL || altsblock == NULL)
                errexit("Cannot allocate space for superblock");
@@ -458,12 +458,14 @@
         * read in the summary info.
         */
        asked = 0;
-       sblock->fs_csp = (struct csum *)calloc(1, sblock->fs_cssize);
+       sblock->fs_csp = (struct csum *)aligned_alloc(DEV_BSIZE,
+           sblock->fs_cssize);
        if (sblock->fs_csp == NULL) {
                pwarn("cannot alloc %u bytes for summary info\n",
                    sblock->fs_cssize); 
                goto badsblabel;
        }
+       memset(sblock->fs_csp, 0, sblock->fs_cssize);
        for (i = 0, j = 0; i < sblock->fs_cssize; i += sblock->fs_bsize, j++) {
                size = sblock->fs_cssize - i < sblock->fs_bsize ?
                    sblock->fs_cssize - i : sblock->fs_bsize;
@@ -492,12 +494,13 @@
         * allocate and initialize the necessary maps
         */
        bmapsize = roundup(howmany(maxfsblock, NBBY), sizeof(int16_t));
-       blockmap = calloc((unsigned)bmapsize, sizeof (char));
+       blockmap = aligned_alloc(DEV_BSIZE, (unsigned)bmapsize);
        if (blockmap == NULL) {
                pwarn("cannot alloc %u bytes for blockmap\n",
                    (unsigned)bmapsize);
                goto badsblabel;
        }
+       memset(blockmap, 0, bmapsize);
        inostathead = calloc((unsigned)(sblock->fs_ncg),
            sizeof(struct inostatlist));
        if (inostathead == NULL) {
@@ -526,7 +529,7 @@
                    (unsigned)(numdirs * sizeof(struct inoinfo *)));
                goto badsblabel;
        }
-       cgrp = malloc(sblock->fs_cgsize);
+       cgrp = aligned_alloc(DEV_BSIZE, sblock->fs_cgsize);
        if (cgrp == NULL) {
                pwarn("cannot alloc %u bytes for cylinder group\n",
                    sblock->fs_cgsize);
diff -r f5aacb05391b -r 8d3aaf9d87cd sbin/fsck_ffs/utilities.c
--- a/sbin/fsck_ffs/utilities.c Fri Apr 17 09:33:37 2020 +0000
+++ b/sbin/fsck_ffs/utilities.c Fri Apr 17 09:42:27 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: utilities.c,v 1.65 2017/02/08 16:11:40 rin Exp $       */
+/*     $NetBSD: utilities.c,v 1.66 2020/04/17 09:42:27 jdolecek Exp $  */
 
 /*
  * Copyright (c) 1980, 1986, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)utilities.c        8.6 (Berkeley) 5/19/95";
 #else
-__RCSID("$NetBSD: utilities.c,v 1.65 2017/02/08 16:11:40 rin Exp $");
+__RCSID("$NetBSD: utilities.c,v 1.66 2020/04/17 09:42:27 jdolecek Exp $");
 #endif
 #endif /* not lint */
 
@@ -135,13 +135,13 @@
        char *bufp;
 
        pbp = pdirbp = (struct bufarea *)0;
-       bufp = malloc((unsigned int)sblock->fs_bsize);
+       bufp = aligned_alloc(DEV_BSIZE, (unsigned int)sblock->fs_bsize);
        if (bufp == 0)
                errexit("cannot allocate buffer pool");
        cgblk.b_un.b_buf = bufp;
        initbarea(&cgblk);
 #ifndef NO_APPLE_UFS
-       bufp = malloc((unsigned int)APPLEUFS_LABEL_SIZE);
+       bufp = aligned_alloc(DEV_BSIZE, (unsigned int)APPLEUFS_LABEL_SIZE);
        if (bufp == 0)
                errexit("cannot allocate buffer pool");
        appleufsblk.b_un.b_buf = bufp;
@@ -153,7 +153,7 @@
                bufcnt = MINBUFS;
        for (i = 0; i < bufcnt; i++) {
                bp = malloc(sizeof(struct bufarea));
-               bufp = malloc((unsigned int)sblock->fs_bsize);
+               bufp = aligned_alloc(DEV_BSIZE, (unsigned int)sblock->fs_bsize);
                if (bp == NULL || bufp == NULL) {
                        if (i >= MINBUFS) {
                                if (bp)