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
+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
-From: Vasiliy Kulikov <segoon@openwall.com>
-Date: Fri, 23 Mar 2012 20:56:42 +0400
-Subject: [PATCH] proc: fix mount -t proc -o AAA
-
-proc_parse_options() inside of proc_mount() runs only once at the boot
-time without any given options. So, following umount(2)+mount(2) ignore
-mount options: proc_parse_options() is not called as ->s_root is already
-initialized. To fix that parse mount options unconditionally.
-
-Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
-Reported-by: Arkadiusz MiĆkiewicz <a.miskiewicz@gmail.com>
----
- fs/proc/root.c | 9 +++++----
- 1 files changed, 5 insertions(+), 4 deletions(-)
-
-diff --git a/fs/proc/root.c b/fs/proc/root.c
-index 46a15d8..eed44bf 100644
---- a/fs/proc/root.c
-+++ b/fs/proc/root.c
-@@ -115,12 +115,13 @@ static struct dentry *proc_mount(struct file_system_type *fs_type,
- if (IS_ERR(sb))
- return ERR_CAST(sb);
+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));
-+ if (!proc_parse_options(options, ns)) {
-+ deactivate_locked_super(sb);
-+ return ERR_PTR(-EINVAL);
-+ }
-+
- if (!sb->s_root) {
- sb->s_flags = flags;
-- if (!proc_parse_options(options, ns)) {
-- deactivate_locked_super(sb);
-- return ERR_PTR(-EINVAL);
-- }
- err = proc_fill_super(sb);
- if (err) {
- deactivate_locked_super(sb);
---
-1.7.0.4
-
-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);
++ /* 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, §or);
+ tmp_dev = map_sector(mddev, zone, sector, §or);
+ split->bi_bdev = tmp_dev->bdev;
--
-1.7.7.3
+cgit v0.10.2
-