From: Luis Chamberlain <mcgrof@kernel.org>
To: axboe@kernel.dk
Cc: hare@suse.de, bvanassche@acm.org, ming.lei@redhat.com,
hch@infradead.org, jack@suse.cz, osandov@fb.com,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Luis Chamberlain <mcgrof@kernel.org>
Subject: [RFC 09/12] block/ataflop: add a helper for removing disks
Date: Thu, 15 Jul 2021 13:59:17 -0700 [thread overview]
Message-ID: <20210715205920.2023980-10-mcgrof@kernel.org> (raw)
In-Reply-To: <20210715205920.2023980-1-mcgrof@kernel.org>
The del_gendisk() can be used now safely even if add_disk()
did not complete, and so using a helper allows other code to
use this later.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
drivers/block/ataflop.c | 31 ++++++++++++++++++-------------
1 file changed, 18 insertions(+), 13 deletions(-)
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index abb6fde0bd81..73eb80b58888 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1988,6 +1988,23 @@ static int ataflop_alloc_disk(unsigned int drive, unsigned int type)
static DEFINE_MUTEX(ataflop_probe_lock);
+static void atari_floppy_disk_remove(void)
+{
+ int i, type;
+
+ for (i = 0; i < FD_MAX_UNITS; i++) {
+ for (type = 0; type < NUM_DISK_MINORS; type++) {
+ if (!unit[i].disk[type])
+ continue;
+ del_gendisk(unit[i].disk[type]);
+ blk_cleanup_disk(unit[i].disk[0]);
+ }
+ blk_mq_free_tag_set(&unit[i].tag_set);
+ }
+ unregister_blkdev(FLOPPY_MAJOR, "fd");
+
+}
+
static void ataflop_probe(dev_t dev)
{
int drive = MINOR(dev) & 3;
@@ -2127,19 +2144,7 @@ __setup("floppy=", atari_floppy_setup);
static void __exit atari_floppy_exit(void)
{
- int i, type;
-
- for (i = 0; i < FD_MAX_UNITS; i++) {
- for (type = 0; type < NUM_DISK_MINORS; type++) {
- if (!unit[i].disk[type])
- continue;
- del_gendisk(unit[i].disk[type]);
- blk_cleanup_disk(unit[i].disk[0]);
- }
- blk_mq_free_tag_set(&unit[i].tag_set);
- }
- unregister_blkdev(FLOPPY_MAJOR, "fd");
-
+ atari_floppy_disk_remove();
del_timer_sync(&fd_timer);
atari_stram_free( DMABuffer );
}
--
2.27.0
next prev parent reply other threads:[~2021-07-15 21:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-15 20:59 [RFC 00/12] block: *add_disk*() driver conversions __register_blkdev() Luis Chamberlain
2021-07-15 20:59 ` [RFC 01/12] floppy: fix add_disk() assumption on exit Luis Chamberlain
2021-07-15 20:59 ` [RFC 02/12] floppy: use blk_cleanup_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 03/12] floppy: add error handling support for add_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 04/12] scsi/sd: use blk_cleanup_queue() insted of put_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 05/12] scsi/sd: add error handling support for add_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 06/12] scsi/sr: use blk_cleanup_disk() instead of put_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 07/12] scsi/sr: add error handling support for add_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 08/12] block/ataflop: use the blk_cleanup_disk() helper Luis Chamberlain
2021-07-15 20:59 ` Luis Chamberlain [this message]
2021-07-15 20:59 ` [RFC 10/12] block/ataflop add error handling support for add_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 11/12] block/brd: " Luis Chamberlain
2021-07-15 20:59 ` [RFC 12/12] block: make probe in blk_request_module() return an error Luis Chamberlain
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