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From: Markus Armbruster <armbru@redhat.com>
To: qemu-devel@nongnu.org
Cc: kwolf@redhat.com, blauwirbel@gmail.com,
	stefanha@linux.vnet.ibm.com, pbonzini@redhat.com
Subject: [Qemu-devel] [PATCH v3 09/29] hd-geometry: Clean up gratuitous goto in hd_geometry_guess()
Date: Tue, 10 Jul 2012 11:12:35 +0200	[thread overview]
Message-ID: <1341911575-7306-10-git-send-email-armbru@redhat.com> (raw)
In-Reply-To: <1341911575-7306-1-git-send-email-armbru@redhat.com>


Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/hd-geometry.c |   22 ++++++++--------------
 1 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/hw/hd-geometry.c b/hw/hd-geometry.c
index 1a58894..fb849a3 100644
--- a/hw/hd-geometry.c
+++ b/hw/hd-geometry.c
@@ -119,8 +119,7 @@ static void guess_chs_for_size(BlockDriverState *bs,
 void hd_geometry_guess(BlockDriverState *bs,
                        int *pcyls, int *pheads, int *psecs)
 {
-    int translation, lba_detected = 0;
-    int cylinders, heads, secs;
+    int cylinders, heads, secs, translation;
 
     bdrv_get_geometry_hint(bs, &cylinders, &heads, &secs);
     translation = bdrv_get_translation_hint(bs);
@@ -135,23 +134,18 @@ void hd_geometry_guess(BlockDriverState *bs,
 
     if (guess_disk_lchs(bs, &cylinders, &heads, &secs) < 0) {
         /* no LCHS guess: use a standard physical disk geometry  */
-    default_geometry:
         guess_chs_for_size(bs, pcyls, pheads, psecs);
-        if ((lba_detected == 1) && (translation == BIOS_ATA_TRANSLATION_AUTO)) {
-            if ((*pcyls * *pheads) <= 131072) {
-                bdrv_set_translation_hint(bs,
-                                          BIOS_ATA_TRANSLATION_LARGE);
-            } else {
-                bdrv_set_translation_hint(bs,
-                                          BIOS_ATA_TRANSLATION_LBA);
-            }
-        }
     } else if (heads > 16) {
         /* LCHS guess with heads > 16 means that a BIOS LBA
            translation was active, so a standard physical disk
            geometry is OK */
-        lba_detected = 1;
-        goto default_geometry;
+        guess_chs_for_size(bs, pcyls, pheads, psecs);
+        if (translation == BIOS_ATA_TRANSLATION_AUTO) {
+            bdrv_set_translation_hint(bs,
+                                      *pcyls * *pheads <= 131072
+                                      ? BIOS_ATA_TRANSLATION_LARGE
+                                      : BIOS_ATA_TRANSLATION_LBA);
+        }
     } else {
         /* LCHS guess with heads <= 16: use as physical geometry */
         *pcyls = cylinders;
-- 
1.7.6.5

  parent reply	other threads:[~2012-07-10  9:13 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-10  9:12 [Qemu-devel] [PATCH v3 00/29] Disk geometry cleanup Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 01/29] fdc: Move floppy geometry guessing back from block.c Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 02/29] vvfat: Fix partition table Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 03/29] vvfat: Do not clobber the user's geometry Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 04/29] qtest: Add hard disk geometry test Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 05/29] hd-geometry: Move disk geometry guessing back from block.c Markus Armbruster
2012-07-11 13:54   ` Kevin Wolf
2012-07-11 14:35     ` Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 06/29] hd-geometry: Add tracepoints Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 07/29] hd-geometry: Unnest conditional in hd_geometry_guess() Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 08/29] hd-geometry: Factor out guess_chs_for_size() Markus Armbruster
2012-07-10  9:12 ` Markus Armbruster [this message]
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 10/29] hd-geometry: Clean up confusing use of prior translation hint Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 11/29] hd-geometry: Cut out block layer translation middleman Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 12/29] ide pc: Cut out the block layer geometry middleman Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 13/29] blockdev: Save geometry in DriveInfo Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 14/29] qdev: Introduce block geometry properties Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 15/29] hd-geometry: Switch to uint32_t to match BlockConf Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 16/29] scsi-hd: qdev properties for disk geometry Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 17/29] virtio-blk: " Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 18/29] ide: " Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 19/29] qtest: Cover " Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 20/29] qdev: Collect private helpers in one place Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 21/29] qdev: New property type chs-translation Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 22/29] ide: qdev property for BIOS CHS translation Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 23/29] qtest: Cover " Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 24/29] block: Geometry and translation hints are now useless, purge them Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 25/29] ide pc: Put hard disk info into CMOS only for hard disks Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 26/29] qtest: Test we don't put hard disk info into CMOS for a CD-ROM Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 27/29] hd-geometry: Compute BIOS CHS translation in one place Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 28/29] blockdev: Drop redundant CHS validation for if=ide Markus Armbruster
2012-07-10  9:12 ` [Qemu-devel] [PATCH v3 29/29] Relax IDE CHS limits from 16383, 16, 63 to 65535, 16, 255 Markus Armbruster
2012-07-11 15:40 ` [Qemu-devel] [PATCH v3 00/29] Disk geometry cleanup Kevin Wolf

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