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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-21 17:50:56 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-21 17:50:56 (GMT) |
commit | 91e8549bde9e5cc88c5a2e8c8114389279e240b5 (patch) | |
tree | 5d5432c2a8a066ecf92e0eec9f07e8b96a6be198 | |
parent | 37fc67c9f0454f7a6448d87225cfee8067fd731d (diff) | |
parent | 7eec77a1816a7042591a6cbdb4820e9e7ebffe0e (diff) | |
download | linux-fsl-qoriq-91e8549bde9e5cc88c5a2e8c8114389279e240b5.tar.xz |
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
ide: unexport DISK_EVENT_MEDIA_CHANGE for ide-gd and ide-cd
block: don't propagate unlisted DISK_EVENTs to userland
elevator: check for ELEVATOR_INSERT_SORT_MERGE in !elvpriv case too
-rw-r--r-- | block/elevator.c | 3 | ||||
-rw-r--r-- | block/genhd.c | 8 | ||||
-rw-r--r-- | drivers/ide/ide-cd.c | 1 | ||||
-rw-r--r-- | drivers/ide/ide-cd_ioctl.c | 6 | ||||
-rw-r--r-- | drivers/ide/ide-gd.c | 7 |
5 files changed, 20 insertions, 5 deletions
diff --git a/block/elevator.c b/block/elevator.c index 6f6abc0..45ca1e3 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -671,7 +671,8 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where) q->boundary_rq = rq; } } else if (!(rq->cmd_flags & REQ_ELVPRIV) && - where == ELEVATOR_INSERT_SORT) + (where == ELEVATOR_INSERT_SORT || + where == ELEVATOR_INSERT_SORT_MERGE)) where = ELEVATOR_INSERT_BACK; switch (where) { diff --git a/block/genhd.c b/block/genhd.c index b364bd0..2dd9887 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1588,9 +1588,13 @@ static void disk_events_workfn(struct work_struct *work) spin_unlock_irq(&ev->lock); - /* tell userland about new events */ + /* + * Tell userland about new events. Only the events listed in + * @disk->events are reported. Unlisted events are processed the + * same internally but never get reported to userland. + */ for (i = 0; i < ARRAY_SIZE(disk_uevents); i++) - if (events & (1 << i)) + if (events & disk->events & (1 << i)) envp[nr_events++] = disk_uevents[i]; if (nr_events) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index fd1e117..a5ec5a7 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1782,7 +1782,6 @@ static int ide_cd_probe(ide_drive_t *drive) ide_cd_read_toc(drive, &sense); g->fops = &idecd_ops; g->flags |= GENHD_FL_REMOVABLE; - g->events = DISK_EVENT_MEDIA_CHANGE; add_disk(g); return 0; diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index 2a6bc50..02caa7d 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -79,6 +79,12 @@ int ide_cdrom_drive_status(struct cdrom_device_info *cdi, int slot_nr) return CDS_DRIVE_NOT_READY; } +/* + * ide-cd always generates media changed event if media is missing, which + * makes it impossible to use for proper event reporting, so disk->events + * is cleared to 0 and the following function is used only to trigger + * revalidation and never propagated to userland. + */ unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *cdi, unsigned int clearing, int slot_nr) { diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c index c4ffd48..70ea876 100644 --- a/drivers/ide/ide-gd.c +++ b/drivers/ide/ide-gd.c @@ -298,6 +298,12 @@ static unsigned int ide_gd_check_events(struct gendisk *disk, return 0; } + /* + * The following is used to force revalidation on the first open on + * removeable devices, and never gets reported to userland as + * genhd->events is 0. This is intended as removeable ide disk + * can't really detect MEDIA_CHANGE events. + */ ret = drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED; drive->dev_flags &= ~IDE_DFLAG_MEDIA_CHANGED; @@ -413,7 +419,6 @@ static int ide_gd_probe(ide_drive_t *drive) if (drive->dev_flags & IDE_DFLAG_REMOVABLE) g->flags = GENHD_FL_REMOVABLE; g->fops = &ide_gd_ops; - g->events = DISK_EVENT_MEDIA_CHANGE; add_disk(g); return 0; |