https://github.com/torvalds/linux
Revision 7c88a168da8003fd4d8fb6ae103c4ecf29cb1130 authored by Tejun Heo on 21 April 2011, 17:43:58 UTC, committed by Jens Axboe on 21 April 2011, 17:43:58 UTC
DISK_EVENT_MEDIA_CHANGE is used for both userland visible event and internal event for revalidation of removeable devices. Some legacy drivers don't implement proper event detection and continuously generate events under certain circumstances. For example, ide-cd generates media changed continuously if there's no media in the drive, which can lead to infinite loop of events jumping back and forth between the driver and userland event handler. This patch updates disk event infrastructure such that it never propagates events not listed in disk->events to userland. Those events are processed the same for internal purposes but uevent generation is suppressed. This also ensures that userland only gets events which are advertised in the @events sysfs node lowering risk of confusion. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
1 parent 3aa7287
Tip revision: 7c88a168da8003fd4d8fb6ae103c4ecf29cb1130 authored by Tejun Heo on 21 April 2011, 17:43:58 UTC
block: don't propagate unlisted DISK_EVENTs to userland
block: don't propagate unlisted DISK_EVENTs to userland
Tip revision: 7c88a16
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 941 bytes |
| .mailmap | -rw-r--r-- | 4.1 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 91.7 KB |
| Kbuild | -rw-r--r-- | 2.4 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 188.3 KB |
| Makefile | -rw-r--r-- | 51.1 KB |
| README | -rw-r--r-- | 17.1 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.3 KB |
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