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authorJustin M. Forbes <jforbes@redhat.com>2013-07-23 09:07:44 -0500
committerJustin M. Forbes <jforbes@redhat.com>2013-07-23 09:07:44 -0500
commitbd472195d6cd7d03e2f8692f75bb3f378ab622cc (patch)
tree7d31a2a189c604fc8017fd7d524dd66debc3d6b2 /xen-blkback-Check-device-permissions-before-allowing.patch
parentfaf25207dc86666a611c45ae3ffaf385c170bd2a (diff)
downloadkernel-bd472195d6cd7d03e2f8692f75bb3f378ab622cc.tar.gz
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Linux v3.11-rc2-93-gb3a3a9c
Diffstat (limited to 'xen-blkback-Check-device-permissions-before-allowing.patch')
-rw-r--r--xen-blkback-Check-device-permissions-before-allowing.patch54
1 files changed, 0 insertions, 54 deletions
diff --git a/xen-blkback-Check-device-permissions-before-allowing.patch b/xen-blkback-Check-device-permissions-before-allowing.patch
deleted file mode 100644
index 933e82890..000000000
--- a/xen-blkback-Check-device-permissions-before-allowing.patch
+++ /dev/null
@@ -1,54 +0,0 @@
-From e029d62efa5eb46831a9e1414468e582379b743f Mon Sep 17 00:00:00 2001
-From: Konrad Rzeszutek Wilk <konrad.wilk () oracle com>
-Date: Wed, 16 Jan 2013 11:33:52 -0500
-Subject: [PATCH] xen/blkback: Check device permissions before allowing
- OP_DISCARD
-
-We need to make sure that the device is not RO or that
-the request is not past the number of sectors we want to
-issue the DISCARD operation for.
-
-Cc: stable () vger kernel org
-Acked-by: Jan Beulich <JBeulich () suse com>
-Acked-by: Ian Campbell <Ian.Campbell () citrix com>
-[v1: Made it pr_warn instead of pr_debug]
-Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk () oracle com>
----
- drivers/block/xen-blkback/blkback.c | 13 ++++++++++++-
- 1 file changed, 12 insertions(+), 1 deletion(-)
-
-diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
-index e79ab45..4119bcd 100644
---- a/drivers/block/xen-blkback/blkback.c
-+++ b/drivers/block/xen-blkback/blkback.c
-@@ -876,7 +876,18 @@ static int dispatch_discard_io(struct xen_blkif *blkif,
- int status = BLKIF_RSP_OKAY;
- struct block_device *bdev = blkif->vbd.bdev;
- unsigned long secure;
-+ struct phys_req preq;
-+
-+ preq.sector_number = req->u.discard.sector_number;
-+ preq.nr_sects = req->u.discard.nr_sectors;
-
-+ err = xen_vbd_translate(&preq, blkif, WRITE);
-+ if (err) {
-+ pr_warn(DRV_PFX "access denied: DISCARD [%llu->%llu] on dev=%04x\n",
-+ preq.sector_number,
-+ preq.sector_number + preq.nr_sects, blkif->vbd.pdevice);
-+ goto fail_response;
-+ }
- blkif->st_ds_req++;
-
- xen_blkif_get(blkif);
-@@ -887,7 +898,7 @@ static int dispatch_discard_io(struct xen_blkif *blkif,
- err = blkdev_issue_discard(bdev, req->u.discard.sector_number,
- req->u.discard.nr_sectors,
- GFP_KERNEL, secure);
--
-+fail_response:
- if (err == -EOPNOTSUPP) {
- pr_debug(DRV_PFX "discard op failed, not supported\n");
- status = BLKIF_RSP_EOPNOTSUPP;
---
-1.8.1.4
-