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authorJan200101 <sentrycraft123@gmail.com>2020-09-17 08:17:48 +0200
committerJan200101 <sentrycraft123@gmail.com>2020-12-05 19:40:07 +0100
commit4c0708c37959ac70f139b5f4fa0926611a48df5c (patch)
treebbb66db4b23dd1dcaa83548ea58b5bdd92d62070 /SOURCES/block-restore-a-specific-error-code-in-bdev_del_part.patch
parentc9587a13a67eda0476637dd110161b93f23c7b3c (diff)
downloadkernel-fsync-4c0708c37959ac70f139b5f4fa0926611a48df5c.tar.gz
kernel-fsync-4c0708c37959ac70f139b5f4fa0926611a48df5c.zip
kernel 5.8.9
Diffstat (limited to 'SOURCES/block-restore-a-specific-error-code-in-bdev_del_part.patch')
-rw-r--r--SOURCES/block-restore-a-specific-error-code-in-bdev_del_part.patch38
1 files changed, 38 insertions, 0 deletions
diff --git a/SOURCES/block-restore-a-specific-error-code-in-bdev_del_part.patch b/SOURCES/block-restore-a-specific-error-code-in-bdev_del_part.patch
new file mode 100644
index 0000000..476eb1a
--- /dev/null
+++ b/SOURCES/block-restore-a-specific-error-code-in-bdev_del_part.patch
@@ -0,0 +1,38 @@
+From 10b34a18180269103dafc68f1a4257ae61c87415 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Tue, 8 Sep 2020 16:15:06 +0200
+Subject: block: restore a specific error code in bdev_del_partition
+
+From: Christoph Hellwig <hch@lst.de>
+
+[ Upstream commit 88ce2a530cc9865a894454b2e40eba5957a60e1a ]
+
+mdadm relies on the fact that deleting an invalid partition returns
+-ENXIO or -ENOTTY to detect if a block device is a partition or a
+whole device.
+
+Fixes: 08fc1ab6d748 ("block: fix locking in bdev_del_partition")
+Reported-by: kernel test robot <rong.a.chen@intel.com>
+Signed-off-by: Christoph Hellwig <hch@lst.de>
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ block/partitions/core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/block/partitions/core.c b/block/partitions/core.c
+index 534e11285a8d4..b45539764c994 100644
+--- a/block/partitions/core.c
++++ b/block/partitions/core.c
+@@ -529,7 +529,7 @@ int bdev_del_partition(struct block_device *bdev, int partno)
+
+ bdevp = bdget_disk(bdev->bd_disk, partno);
+ if (!bdevp)
+- return -ENOMEM;
++ return -ENXIO;
+
+ mutex_lock(&bdevp->bd_mutex);
+ mutex_lock_nested(&bdev->bd_mutex, 1);
+--
+2.25.1
+