- use ext4 code for handling ext2/3 filesystems

[packages/kernel.git] / kernel-small_fixes.patch

diff --git a/kernel-small_fixes.patch b/kernel-small_fixes.patch
index 5da7c5a9f879da3bacab3153782cd7ece6905f53..b03299e6100bd5db95179ca57cb0aa27b56ffc68 100644 (file)
--- a/kernel-small_fixes.patch
+++ b/kernel-small_fixes.patch
@@ -26,68 +26,49 @@
                                exit
                        fi
                done
+From a81157768a00e8cf8a7b43b5ea5cac931262374f Mon Sep 17 00:00:00 2001
+From: Eric Work <work.eric@gmail.com>
+Date: Mon, 18 May 2015 23:26:23 -0700
+Subject: md/raid0: fix restore to sector variable in raid0_make_request
 
-diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
-index 7a0c800..ec5ebbb 100644
---- a/drivers/net/ethernet/realtek/r8169.c
-+++ b/drivers/net/ethernet/realtek/r8169.c
-@@ -4103,6 +4103,14 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-       /* Get MAC address */
-       for (i = 0; i < ETH_ALEN; i++)
-               dev->dev_addr[i] = RTL_R8(MAC0 + i);
+The variable "sector" in "raid0_make_request()" was improperly updated
+by a call to "sector_div()" which modifies its first argument in place.
+Commit 47d68979cc968535cb87f3e5f2e6a3533ea48fbd restored this variable
+after the call for later re-use.  Unfortunetly the restore was done after
+the referenced variable "bio" was advanced.  This lead to the original
+value and the restored value being different.  Here we move this line to
+the proper place.
+
+One observed side effect of this bug was discarding a file though
+unlinking would cause an unrelated file's contents to be discarded.
+
+Signed-off-by: NeilBrown <neilb@suse.de>
+Fixes: 47d68979cc96 ("md/raid0: fix bug with chunksize not a power of 2.")
+Cc: stable@vger.kernel.org (any that received above backport)
+URL: https://bugzilla.kernel.org/show_bug.cgi?id=98501
+
+diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
+index 6a68ef5..efb654e 100644
+--- a/drivers/md/raid0.c
++++ b/drivers/md/raid0.c
+@@ -524,6 +524,9 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
+                        ? (sector & (chunk_sects-1))
+                        : sector_div(sector, chunk_sects));
+ 
++              /* Restore due to sector_div */
++              sector = bio->bi_iter.bi_sector;
 +
-+      if (!is_valid_ether_addr(dev->dev_addr)) {
-+              /* Report it and use a random ethernet address instead */
-+              netdev_err(dev, "Invalid MAC address: %pM\n", dev->dev_addr);
-+              random_ether_addr(dev->dev_addr);
-+              netdev_info(dev, "Using random MAC address: %pM\n",
-+                          dev->dev_addr);
-+      }
-       memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+               if (sectors < bio_sectors(bio)) {
+                       split = bio_split(bio, sectors, GFP_NOIO, fs_bio_set);
+                       bio_chain(split, bio);
+@@ -531,7 +534,6 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
+                       split = bio;
+               }
  
-       SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
+-              sector = bio->bi_iter.bi_sector;
+               zone = find_zone(mddev->private, &sector);
+               tmp_dev = map_sector(mddev, zone, sector, &sector);
+               split->bi_bdev = tmp_dev->bdev;
 -- 
-1.7.7.3
+cgit v0.10.2
 
-  
---- linux-3.4/fs/unionfs/commonfops.c.org      2012-05-29 20:40:20.756489877 +0200
-+++ linux-3.4/fs/unionfs/commonfops.c  2012-05-29 21:07:12.021252743 +0200
-@@ -766,7 +766,7 @@
-                                  unsigned int cmd, unsigned long arg)
- {
-       int err = 0;
--      fd_set branchlist;
-+      unsigned long branchlist = 0;
-       int bstart = 0, bend = 0, bindex = 0;
-       int orig_bstart, orig_bend;
-       struct dentry *dentry, *lower_dentry;
-@@ -781,14 +781,12 @@
-       bstart = dbstart(dentry);
-       bend = dbend(dentry);
- 
--      FD_ZERO(&branchlist);
--
-       for (bindex = bstart; bindex <= bend; bindex++) {
-               lower_dentry = unionfs_lower_dentry_idx(dentry, bindex);
-               if (!lower_dentry)
-                       continue;
-               if (likely(lower_dentry->d_inode))
--                      FD_SET(bindex, &branchlist);
-+                      __set_bit(bindex, &branchlist);
-               /* purge any lower objects after partial_lookup */
-               if (bindex < orig_bstart || bindex > orig_bend) {
-                       dput(lower_dentry);
---- linux-3.4.orig/drivers/acpi/apei/apei-base.c       2012-06-08 10:02:06.000000000 +0200
-+++ linux-3.4/drivers/acpi/apei/apei-base.c    2012-06-08 10:04:16.503779775 +0200
-@@ -586,6 +586,11 @@ static int apei_check_gar(struct acpi_ge
-       }
-       *access_bit_width = 1UL << (access_size_code + 2);
- 
-+      /* Fixup common BIOS bug */
-+      if (bit_width == 32 && bit_offset == 0 && (*paddr & 0x03) == 0 &&
-+          *access_bit_width < 32)
-+              *access_bit_width = 32;
-+
-       if ((bit_width + bit_offset) > *access_bit_width) {
-               pr_warning(FW_BUG APEI_PFX
-                          "Invalid bit width + offset in GAR [0x%llx/%u/%u/%u/%u]\n",