grub2/0092-grub-core-kern-disk.c-grub_disk_write-Fix-sector-num.patch

From 2aa6a4fce53d2a43cc00fde2362eb39d1fdb9f4d Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Thu, 10 Jan 2013 08:09:26 +0100
Subject: [PATCH 092/482] 	* grub-core/kern/disk.c (grub_disk_write): Fix
 sector number on 4K 	sector devices.

---
 ChangeLog             |  5 +++++
 grub-core/kern/disk.c | 11 ++++++++---
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 75fb85a..48d297d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-01-10  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/kern/disk.c (grub_disk_write): Fix sector number on 4K
+	sector devices.
+
 2013-01-07  Colin Watson  <cjwatson@ubuntu.com>
 
 	* grub-core/io/bufio.c (grub_bufio_open): Use grub_zalloc instead of
diff --git a/grub-core/kern/disk.c b/grub-core/kern/disk.c
index 1f55f90..94318af 100644
--- a/grub-core/kern/disk.c
+++ b/grub-core/kern/disk.c
@@ -658,7 +658,8 @@ grub_disk_write (grub_disk_t disk, grub_disk_addr_t sector,
 
 	  grub_disk_cache_invalidate (disk->dev->id, disk->id, sector);
 
-	  if ((disk->dev->write) (disk, sector, 1, tmp_buf) != GRUB_ERR_NONE)
+	  if ((disk->dev->write) (disk, transform_sector (disk, sector),
+				  1, tmp_buf) != GRUB_ERR_NONE)
 	    goto finish;
 
 	  sector += (1 << (disk->log_sector_size - GRUB_DISK_SECTOR_BITS));
@@ -674,11 +675,15 @@ grub_disk_write (grub_disk_t disk, grub_disk_addr_t sector,
 	  len = size & ~((1 << disk->log_sector_size) - 1);
 	  n = size >> disk->log_sector_size;
 
-	  if ((disk->dev->write) (disk, sector, n, buf) != GRUB_ERR_NONE)
+	  if ((disk->dev->write) (disk, transform_sector (disk, sector),
+				  n, buf) != GRUB_ERR_NONE)
 	    goto finish;
 
 	  while (n--)
-	    grub_disk_cache_invalidate (disk->dev->id, disk->id, sector++);
+	    {
+	      grub_disk_cache_invalidate (disk->dev->id, disk->id, sector);
+	      sector += (1 << (disk->log_sector_size - GRUB_DISK_SECTOR_BITS));
+	    }
 
 	  buf = (const char *) buf + len;
 	  size -= len;
-- 
1.8.2.1