[src/jdolecek-ncqfixes]: src/sys/dev/ata convert from malloc()/free() to kmem...

To: source-changes-hg%NetBSD.org@localhost
Subject: [src/jdolecek-ncqfixes]: src/sys/dev/ata convert from malloc()/free() to kmem...
From: jdolecek <jdolecek%NetBSD.org@localhost>
Date: Mon, 08 Nov 2021 17:07:16 +0000
details:   https://anonhg.NetBSD.org/src/rev/325de9aff542
branches:  jdolecek-ncqfixes
changeset: 1025076:325de9aff542
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Mon Sep 17 20:54:41 2018 +0000

description:
convert from malloc()/free() to kmem_zalloc()/kmem_free()

diffstat:

 sys/dev/ata/TODO.ncq           |   3 ++-
 sys/dev/ata/ata.c              |  21 ++++++++++-----------
 sys/dev/ata/ata_raid.c         |   7 +++----
 sys/dev/ata/ata_raid_adaptec.c |   9 ++++-----
 sys/dev/ata/ata_raid_intel.c   |  10 +++++-----
 sys/dev/ata/ata_raid_jmicron.c |   9 ++++-----
 sys/dev/ata/ata_raid_nvidia.c  |  11 +++++------
 sys/dev/ata/ata_raid_promise.c |   9 ++++-----
 sys/dev/ata/ata_raid_via.c     |   9 ++++-----
 sys/dev/ata/ata_subr.c         |   5 +++--
 sys/dev/ata/ata_wdc.c          |   5 ++---
 sys/dev/ata/ld_ataraid.c       |   5 ++---
 sys/dev/ata/wd.c               |  28 ++++++++++++++++------------
 13 files changed, 64 insertions(+), 67 deletions(-)

diffs (truncated from 601 to 300 lines):

diff -r 6a5cd3159111 -r 325de9aff542 sys/dev/ata/TODO.ncq
--- a/sys/dev/ata/TODO.ncq      Mon Sep 17 19:30:25 2018 +0000
+++ b/sys/dev/ata/TODO.ncq      Mon Sep 17 20:54:41 2018 +0000
@@ -1,6 +1,7 @@
 jdolecek-ncqfixes goals:
 - make ata_xfer dynamically allocated using a pool
-  - fixes: queue is allocated regardless if there are any drives, fix? 
+  - will fix: queue is allocated regardless if there are any drives, fix? 
+  - malloc() -> kmem_zalloc() in ata_queue_alloc() once this is done
 - remove limit of queued ata_xfers, allow any number of pending xfers;
   this should fix kern/52614 AKA wdc-attached ATAPI cd(4)
 - remove the wd(4) flush condition, just allocate a dynamic ata_xfer
diff -r 6a5cd3159111 -r 325de9aff542 sys/dev/ata/ata.c
--- a/sys/dev/ata/ata.c Mon Sep 17 19:30:25 2018 +0000
+++ b/sys/dev/ata/ata.c Mon Sep 17 20:54:41 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ata.c,v 1.141.6.4 2018/09/17 19:00:43 jdolecek Exp $   */
+/*     $NetBSD: ata.c,v 1.141.6.5 2018/09/17 20:54:41 jdolecek Exp $   */
 
 /*
  * Copyright (c) 1998, 2001 Manuel Bouyer.  All rights reserved.
@@ -25,14 +25,13 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ata.c,v 1.141.6.4 2018/09/17 19:00:43 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ata.c,v 1.141.6.5 2018/09/17 20:54:41 jdolecek Exp $");
 
 #include "opt_ata.h"
 
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
-#include <sys/malloc.h>
 #include <sys/device.h>
 #include <sys/conf.h>
 #include <sys/fcntl.h>
@@ -292,7 +291,7 @@
        cv_broadcast(&atabus_qcv);
        mutex_exit(&atabus_qlock);
 
-       free(atabus_initq, M_DEVBUF);
+       kmem_free(atabus_initq, sizeof(*atabus_initq));
 
        ata_delref(chp);
 
@@ -418,7 +417,7 @@
        cv_broadcast(&atabus_qcv);
        mutex_exit(&atabus_qlock);
 
-       free(atabus_initq, M_DEVBUF);
+       kmem_free(atabus_initq, sizeof(*atabus_initq));
 
        ata_delref(chp);
 
@@ -569,7 +568,7 @@
 
        RUN_ONCE(&ata_init_ctrl, atabus_init);
 
-       initq = malloc(sizeof(*initq), M_DEVBUF, M_WAITOK);
+       initq = kmem_zalloc(sizeof(*initq), KM_SLEEP);
        initq->atabus_sc = sc;
        mutex_enter(&atabus_qlock);
        TAILQ_INSERT_TAIL(&atabus_initq_head, initq, atabus_initq);
@@ -716,9 +715,8 @@
        if (chp->ch_ndrives != ndrives)
                atabus_free_drives(chp);
        if (chp->ch_drive == NULL) {
-               chp->ch_drive = malloc(
-                   sizeof(struct ata_drive_datas) * ndrives,
-                   M_DEVBUF, M_NOWAIT | M_ZERO);
+               chp->ch_drive = kmem_zalloc(
+                   sizeof(struct ata_drive_datas) * ndrives, KM_NOSLEEP);
        }
        if (chp->ch_drive == NULL) {
            aprint_error_dev(chp->ch_atac->atac_dev,
@@ -761,8 +759,9 @@
 
        if (chp->ch_drive == NULL)
                return;
+       kmem_free(chp->ch_drive,
+           sizeof(struct ata_drive_datas) * chp->ch_ndrives);
        chp->ch_ndrives = 0;
-       free(chp->ch_drive, M_DEVBUF);
        chp->ch_drive = NULL;
 }
 
@@ -2218,7 +2217,7 @@
                }
        }
 
-       initq = malloc(sizeof(*initq), M_DEVBUF, M_WAITOK);
+       initq = kmem_zalloc(sizeof(*initq), KM_SLEEP);
        initq->atabus_sc = sc;
        mutex_enter(&atabus_qlock);
        TAILQ_INSERT_TAIL(&atabus_initq_head, initq, atabus_initq);
diff -r 6a5cd3159111 -r 325de9aff542 sys/dev/ata/ata_raid.c
--- a/sys/dev/ata/ata_raid.c    Mon Sep 17 19:30:25 2018 +0000
+++ b/sys/dev/ata/ata_raid.c    Mon Sep 17 20:54:41 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ata_raid.c,v 1.40 2018/06/22 09:06:04 pgoyette Exp $   */
+/*     $NetBSD: ata_raid.c,v 1.40.4.1 2018/09/17 20:54:41 jdolecek Exp $       */
 
 /*
  * Copyright (c) 2003 Wasabi Systems, Inc.
@@ -40,7 +40,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ata_raid.c,v 1.40 2018/06/22 09:06:04 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ata_raid.c,v 1.40.4.1 2018/09/17 20:54:41 jdolecek Exp $");
 
 #include <sys/param.h>
 #include <sys/buf.h>
@@ -50,7 +50,6 @@
 #include <sys/disk.h>
 #include <sys/disklabel.h>
 #include <sys/fcntl.h>
-#include <sys/malloc.h>
 #include <sys/vnode.h>
 #include <sys/proc.h>
 #include <sys/module.h>
@@ -274,7 +273,7 @@
        }
 
        /* Need to allocate a new one. */
-       aai = malloc(sizeof(*aai), M_DEVBUF, M_WAITOK | M_ZERO);
+       aai = kmem_zalloc(sizeof(*aai), KM_SLEEP);
        aai->aai_type = type;
        aai->aai_arrayno = arrayno;
        aai->aai_curdisk = 0;
diff -r 6a5cd3159111 -r 325de9aff542 sys/dev/ata/ata_raid_adaptec.c
--- a/sys/dev/ata/ata_raid_adaptec.c    Mon Sep 17 19:30:25 2018 +0000
+++ b/sys/dev/ata/ata_raid_adaptec.c    Mon Sep 17 20:54:41 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ata_raid_adaptec.c,v 1.10 2017/11/01 19:34:46 mlelstv Exp $    */
+/*     $NetBSD: ata_raid_adaptec.c,v 1.10.6.1 2018/09/17 20:54:41 jdolecek Exp $       */
 
 /*-
  * Copyright (c) 2000,2001,2002 Søren Schmidt <sos%FreeBSD.org@localhost>
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ata_raid_adaptec.c,v 1.10 2017/11/01 19:34:46 mlelstv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ata_raid_adaptec.c,v 1.10.6.1 2018/09/17 20:54:41 jdolecek Exp $");
 
 #include <sys/param.h>
 #include <sys/buf.h>
@@ -45,7 +45,6 @@
 #include <sys/disk.h>
 #include <sys/disklabel.h>
 #include <sys/fcntl.h>
-#include <sys/malloc.h>
 #include <sys/vnode.h>
 #include <sys/kauth.h>
 
@@ -77,7 +76,7 @@
        struct ataraid_array_info *aai;
        struct ataraid_disk_info *adi;
 
-       info = malloc(sizeof(*info), M_DEVBUF, M_WAITOK);
+       info = kmem_zalloc(sizeof(*info), KM_SLEEP);
 
        bmajor = devsw_name2blk(dksc->sc_xname, NULL, 0);
 
@@ -189,6 +188,6 @@
        error = 0;
 
  out:
-       free(info, M_DEVBUF);
+       kmem_free(info, sizeof(*info));
        return (error);
 }
diff -r 6a5cd3159111 -r 325de9aff542 sys/dev/ata/ata_raid_intel.c
--- a/sys/dev/ata/ata_raid_intel.c      Mon Sep 17 19:30:25 2018 +0000
+++ b/sys/dev/ata/ata_raid_intel.c      Mon Sep 17 20:54:41 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ata_raid_intel.c,v 1.8 2017/11/01 19:34:46 mlelstv Exp $       */
+/*     $NetBSD: ata_raid_intel.c,v 1.8.6.1 2018/09/17 20:54:41 jdolecek Exp $  */
 
 /*-
  * Copyright (c) 2000-2008 Søren Schmidt <sos%FreeBSD.org@localhost>
@@ -33,7 +33,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ata_raid_intel.c,v 1.8 2017/11/01 19:34:46 mlelstv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ata_raid_intel.c,v 1.8.6.1 2018/09/17 20:54:41 jdolecek Exp $");
 
 #include <sys/param.h>
 #include <sys/buf.h>
@@ -43,7 +43,6 @@
 #include <sys/disk.h>
 #include <sys/disklabel.h>
 #include <sys/fcntl.h>
-#include <sys/malloc.h>
 #include <sys/vnode.h>
 #include <sys/kauth.h>
 
@@ -138,6 +137,7 @@
 {
        struct dk_softc *dksc = &sc->sc_dksc;
        struct intel_raid_conf *info;
+       const size_t infosz = 1536;
        struct intel_raid_mapping *map;
        struct ataraid_array_info *aai;
        struct ataraid_disk_info *adi;
@@ -148,7 +148,7 @@
        dev_t dev;
        int volumeid, diskidx;
 
-       info = malloc(1536, M_DEVBUF, M_WAITOK|M_ZERO);
+       info = kmem_zalloc(infosz, KM_SLEEP);
 
        bmajor = devsw_name2blk(dksc->sc_xname, NULL, 0);
 
@@ -298,7 +298,7 @@
        }
 
  out:
-       free(info, M_DEVBUF);
+       kmem_free(info, infosz);
        return error;
 }
 
diff -r 6a5cd3159111 -r 325de9aff542 sys/dev/ata/ata_raid_jmicron.c
--- a/sys/dev/ata/ata_raid_jmicron.c    Mon Sep 17 19:30:25 2018 +0000
+++ b/sys/dev/ata/ata_raid_jmicron.c    Mon Sep 17 20:54:41 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ata_raid_jmicron.c,v 1.6 2017/11/01 19:34:46 mlelstv Exp $     */
+/*     $NetBSD: ata_raid_jmicron.c,v 1.6.6.1 2018/09/17 20:54:41 jdolecek Exp $        */
 
 /*-
  * Copyright (c) 2000-2008 Søren Schmidt <sos%FreeBSD.org@localhost>
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ata_raid_jmicron.c,v 1.6 2017/11/01 19:34:46 mlelstv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ata_raid_jmicron.c,v 1.6.6.1 2018/09/17 20:54:41 jdolecek Exp $");
 
 #include <sys/param.h>
 #include <sys/buf.h>
@@ -45,7 +45,6 @@
 #include <sys/disk.h>
 #include <sys/disklabel.h>
 #include <sys/fcntl.h>
-#include <sys/malloc.h>
 #include <sys/vnode.h>
 #include <sys/kauth.h>
 
@@ -130,7 +129,7 @@
        int bmajor, error, count, disk, total_disks;
        dev_t dev;
 
-       info = malloc(sizeof(*info), M_DEVBUF, M_WAITOK|M_ZERO);
+       info = kmem_zalloc(sizeof(*info), KM_SLEEP);
 
        bmajor = devsw_name2blk(dksc->sc_xname, NULL, 0);
 
@@ -265,6 +264,6 @@
        error = 0;
 
  out:
-       free(info, M_DEVBUF);
+       kmem_free(info, sizeof(*info));
        return error;
 }
diff -r 6a5cd3159111 -r 325de9aff542 sys/dev/ata/ata_raid_nvidia.c
--- a/sys/dev/ata/ata_raid_nvidia.c     Mon Sep 17 19:30:25 2018 +0000
+++ b/sys/dev/ata/ata_raid_nvidia.c     Mon Sep 17 20:54:41 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ata_raid_nvidia.c,v 1.3 2017/11/01 19:34:46 mlelstv Exp $      */
+/*     $NetBSD: ata_raid_nvidia.c,v 1.3.6.1 2018/09/17 20:54:41 jdolecek Exp $ */
 
 /*-
  * Copyright (c) 2000 - 2008 Søren Schmidt <sos%FreeBSD.org@localhost>
@@ -33,7 +33,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ata_raid_nvidia.c,v 1.3 2017/11/01 19:34:46 mlelstv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ata_raid_nvidia.c,v 1.3.6.1 2018/09/17 20:54:41 jdolecek Exp $");
 
 #include <sys/param.h>
 #include <sys/buf.h>
@@ -43,7 +43,6 @@
 #include <sys/disk.h>
 #include <sys/disklabel.h>
 #include <sys/fcntl.h>
-#include <sys/malloc.h>
 #include <sys/vnode.h>
 #include <sys/kauth.h>
 
@@ -136,7 +135,7 @@
          struct _arrayno *next;
        } arrayno = { 0, 0, NULL}, *anptr;
 
-       info = malloc(sizeof(*info), M_DEVBUF, M_WAITOK);
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