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authorArnd Bergmann <arnd@arndb.de>2019-11-29 11:28:22 +0100
committerJens Axboe <axboe@kernel.dk>2019-12-21 07:26:56 -0700
commitb2c0fcd28772f99236d261509bcd242135677965 (patch)
tree1eaa1b081d0745d077145c145aff11988360f3e1
parent4b43f31d65dac587dae09ee27a48fd68a0cfd8c2 (diff)
compat_ioctl: block: handle Persistent Reservations
These were added to blkdev_ioctl() in linux-5.5 but not blkdev_compat_ioctl, so add them now. Cc: <stable@vger.kernel.org> # v4.4+ Fixes: bbd3e064362e ("block: add an API for Persistent Reservations") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fold in followup patch from Arnd with missing pr.h header include. Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/compat_ioctl.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 5b13e344229c..3ed7a0f144a9 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -6,6 +6,7 @@
#include <linux/compat.h>
#include <linux/elevator.h>
#include <linux/hdreg.h>
+#include <linux/pr.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
#include <linux/types.h>
@@ -408,6 +409,14 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
case BLKTRACETEARDOWN: /* compatible */
ret = blk_trace_ioctl(bdev, cmd, compat_ptr(arg));
return ret;
+ case IOC_PR_REGISTER:
+ case IOC_PR_RESERVE:
+ case IOC_PR_RELEASE:
+ case IOC_PR_PREEMPT:
+ case IOC_PR_PREEMPT_ABORT:
+ case IOC_PR_CLEAR:
+ return blkdev_ioctl(bdev, mode, cmd,
+ (unsigned long)compat_ptr(arg));
default:
if (disk->fops->compat_ioctl)
ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg);