linux-kernel - [PATCH] scsi: allow persistent reservations without CAP_SYS

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Message-Id: <1339517312-18134-1-git-send-email-pbonzini@redhat.com>
Date:	Tue, 12 Jun 2012 18:08:32 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	axboe@...nel.dk, linux-scsi@...r.kernel.org,
	jbottomley@...allels.com
Subject: [PATCH] scsi: allow persistent reservations without CAP_SYS_RAWIO

Persistent reservations commands cannot be issued right now without
giving CAP_SYS_RAWIO to the process who wishes to send them.  This
is a bit heavy-handed, allow these two commands.

Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
---
        Ok for 3.5 as well?

 block/scsi_ioctl.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 260fa80..5d6c9c1 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -137,6 +137,7 @@ static void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter)
 	__set_bit(SERVICE_ACTION_IN, filter->read_ok);
 	__set_bit(RECEIVE_DIAGNOSTIC, filter->read_ok);
 	__set_bit(MAINTENANCE_IN, filter->read_ok);
+	__set_bit(PERSISTENT_RESERVE_IN, filter->read_ok);
 	__set_bit(GPCMD_READ_BUFFER_CAPACITY, filter->read_ok);
 
 	/* Audio CD commands */
@@ -178,6 +179,7 @@ static void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter)
 	__set_bit(GPCMD_MODE_SELECT_10, filter->write_ok);
 	__set_bit(MODE_SELECT, filter->write_ok);
 	__set_bit(LOG_SELECT, filter->write_ok);
+	__set_bit(PERSISTENT_RESERVE_OUT, filter->write_ok);
 	__set_bit(GPCMD_BLANK, filter->write_ok);
 	__set_bit(GPCMD_CLOSE_TRACK, filter->write_ok);
 	__set_bit(GPCMD_FLUSH_CACHE, filter->write_ok);
-- 
1.7.1

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