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| author | Martin Wilck <mwilck@suse.com> | 2019-03-27 14:51:04 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-04-12 13:35:27 -0600 |
| commit | 773008f6fe0544aa28140ced0504cefba17381aa (patch) | |
| tree | 4df5920521f6c4a2d84e5e1f67cac96151146db9 /drivers/block/paride | |
| parent | 3c12c8e94ca04d668ad0cded7857fea2637834b3 (diff) | |
| download | lwn-773008f6fe0544aa28140ced0504cefba17381aa.tar.gz lwn-773008f6fe0544aa28140ced0504cefba17381aa.zip | |
Revert "block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers"
This reverts commit 9fd097b14918875bd6f125ed699d7bbbba5893ee.
Instead of leaving disk->events completely empty, we now export the
supported events again, and tell the block layer not to forward events to
user space by not setting DISK_EVENT_FLAG_UEVENT. This allows the block
layer to distinguish between devices that for which events should be
handled in kernel only, and devices which don't support any meda change
events at all.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Tim Waugh <tim@cyberelk.net>
Cc: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/paride')
| -rw-r--r-- | drivers/block/paride/pcd.c | 1 | ||||
| -rw-r--r-- | drivers/block/paride/pd.c | 1 | ||||
| -rw-r--r-- | drivers/block/paride/pf.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c index 377a694dc228..5436d856e656 100644 --- a/drivers/block/paride/pcd.c +++ b/drivers/block/paride/pcd.c @@ -342,6 +342,7 @@ static void pcd_init_units(void) strcpy(disk->disk_name, cd->name); /* umm... */ disk->fops = &pcd_bdops; disk->flags = GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE; + disk->events = DISK_EVENT_MEDIA_CHANGE; } } diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 0ff9b12d0e35..6f9ad3fc716f 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -897,6 +897,7 @@ static void pd_probe_drive(struct pd_unit *disk) p->fops = &pd_fops; p->major = major; p->first_minor = (disk - pd) << PD_BITS; + p->events = DISK_EVENT_MEDIA_CHANGE; disk->gd = p; p->private_data = disk; diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c index 103b617cdc31..1aca4a8acb55 100644 --- a/drivers/block/paride/pf.c +++ b/drivers/block/paride/pf.c @@ -319,6 +319,7 @@ static void __init pf_init_units(void) disk->first_minor = unit; strcpy(disk->disk_name, pf->name); disk->fops = &pf_fops; + disk->events = DISK_EVENT_MEDIA_CHANGE; if (!(*drives[unit])[D_PRT]) pf_drive_count++; } |