From: Michal Suchanek <msuchanek@suse.de>
To: linux-scsi@vger.kernel.org, linux-block@vger.kernel.org
Cc: Michal Suchanek <msuchanek@suse.de>,
Jonathan Corbet <corbet@lwn.net>, Jens Axboe <axboe@kernel.dk>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Eric Biggers <ebiggers@google.com>,
"J. Bruce Fields" <bfields@redhat.com>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Benjamin Coddington <bcodding@redhat.com>,
Ming Lei <ming.lei@redhat.com>,
Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>,
Bart Van Assche <bvanassche@acm.org>,
Damien Le Moal <damien.lemoal@wdc.com>,
Hou Tao <houtao1@huawei.com>,
Pavel Begunkov <asml.silence@gmail.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
Jan Kara <jack@suse.cz>, Hannes Reinecke <hare@suse.com>,
"Ewan D. Milne" <emilne@redhat.com>,
Christoph Hellwig <hch@infradead.org>,
Matthew Wilcox <willy@infradead.org>
Subject: [PATCH v4 01/10] cdrom: add poll_event_interruptible
Date: Thu, 21 Nov 2019 18:13:08 +0100 [thread overview]
Message-ID: <c2bc338b4746f21b13262363d218cbb39e889970.1574355709.git.msuchanek@suse.de> (raw)
In-Reply-To: <cover.1574355709.git.msuchanek@suse.de>
Add convenience macro for polling an event that does not have a
waitqueue.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
---
drivers/cdrom/cdrom.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index ac42ae4651ce..2ad6b73482fe 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -282,10 +282,24 @@
#include <linux/fcntl.h>
#include <linux/blkdev.h>
#include <linux/times.h>
+#include <linux/delay.h>
#include <linux/uaccess.h>
+#include <linux/sched/signal.h>
#include <scsi/scsi_common.h>
#include <scsi/scsi_request.h>
+#define poll_event_interruptible(event, interval) ({ \
+ int ret = 0; \
+ while (!(event)) { \
+ if (signal_pending(current)) { \
+ ret = -ERESTARTSYS; \
+ break; \
+ } \
+ msleep_interruptible(interval); \
+ } \
+ ret; \
+})
+
/* used to tell the module to turn on full debugging messages */
static bool debug;
/* default compatibility mode */
--
2.23.0
next prev parent reply other threads:[~2019-11-21 17:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-21 17:13 [PATCH v4 00/10] Fix cdrom autoclose Michal Suchanek
2019-11-21 17:13 ` Michal Suchanek [this message]
2019-11-21 17:13 ` [PATCH v4 02/10] cdrom: factor out common open_for_* code Michal Suchanek
2019-11-21 17:13 ` [PATCH v4 03/10] cdrom: wait for the tray to close Michal Suchanek
2019-11-21 17:13 ` [PATCH v4 04/10] cdrom: export autoclose logic as a separate function Michal Suchanek
2019-11-21 17:13 ` [PATCH v4 05/10] cdrom: unify log messages Michal Suchanek
2019-11-21 17:13 ` [PATCH v4 06/10] bdev: reset first_open when looping in __blkget_dev Michal Suchanek
2019-11-21 17:13 ` [PATCH v4 07/10] bdev: separate parts of __blkdev_get as helper functions Michal Suchanek
2019-11-21 17:13 ` [PATCH v4 08/10] bdev: add open_finish Michal Suchanek
2019-11-21 17:13 ` [PATCH v4 09/10] scsi: blacklist: add VMware ESXi cdrom - broken tray emulation Michal Suchanek
2019-11-21 17:13 ` [PATCH v4 10/10] scsi: sr: wait for the medium to become ready Michal Suchanek
2019-11-21 19:00 ` [PATCH v4 00/10] Fix cdrom autoclose Jens Axboe
2019-11-21 23:43 ` Michal Suchánek
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