kernel.git/block/genhd.c, branch linux-2.6.23.y

unregister_blkdev(): return void

2007-07-17T17:23:03Z

Put WARN_ON and fixed all callers of unregister_blkdev(). Now we can make unregister_blkdev return void. Cc: Jens Axboe Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

unregister_blkdev(): do WARN_ON on failure

2007-07-17T17:23:03Z

When unregister_blkdev() has failed, something wrong happened. This patch adds WARN_ON to notify of such badness. Cc: Jens Axboe Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Slab allocators: Replace explicit zeroing with __GFP_ZERO

2007-07-17T17:23:02Z

kmalloc_node() and kmem_cache_alloc_node() were not available in a zeroing variant in the past. But with __GFP_ZERO it is possible now to do zeroing while allocating. Use __GFP_ZERO to remove the explicit clearing of memory via memset whereever we can. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

genhd: send async notification on media change

2007-05-24T03:14:12Z

Send an uevent to user space to indicate that a media change event has occurred. Signed-off-by: Kristen Carlson Accardi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

genhd: expose AN to user space

2007-05-24T03:14:11Z

Allow user space to determine if a disk supports Asynchronous Notification of media changes. This is done by adding a new sysfs file "capability_flags", which is documented in (insert file name). This sysfs file will export all disk capabilities flags to user space. We also define a new flag to define the media change notification capability. Signed-off-by: Kristen Carlson Accardi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Display all possible partitions when the root filesystem failed to mount

2007-05-09T19:30:48Z

Display all possible partitions when the root filesystem is not mounted. This helps to track spell'o's and missing drivers. Updated to work with newer kernels. Example output: VFS: Cannot open root device "foobar" or unknown-block(0,0) Please append a correct "root=" boot option; here are the available partitions: 0800 8388608 sda driver: sd 0801 192748 sda1 0802 8193150 sda2 0810 4194304 sdb driver: sd Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [akpm@linux-foundation.org: cleanups, fix printk warnings] Signed-off-by: Jan Engelhardt Cc: Dave Gilbert Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

remove "struct subsystem" as it is no longer needed

2007-05-03T01:57:59Z

We need to work on cleaning up the relationship between kobjects, ksets and ktypes. The removal of 'struct subsystem' is the first step of this, especially as it is not really needed at all. Thanks to Kay for fixing the bugs in this patch. Signed-off-by: Greg Kroah-Hartman

[PATCH] remove protection of LANANA-reserved majors

2007-04-05T04:12:47Z

Revert all this. It can cause device-mapper to receive a different major from earlier kernels and it turns out that the Amanda backup program (via GNU tar, apparently) checks major numbers on files when performing incremental backups. Which is a bit broken of Amanda (or tar), but this feature isn't important enough to justify the churn. Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] rework reserved major handling

2007-02-21T01:10:13Z

Several people have reported failures in dynamic major device number handling due to the recent changes in there to avoid handing out the local/experimental majors. Rolf reports that this is due to a gcc-4.1.0 bug. The patch refactors that code a lot in an attempt to provoke the compiler into behaving. Cc: Rolf Eike Beer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] register_blkdev(): don't hand out the LOCAL/EXPERIMENTAL majors

2007-02-12T17:48:27Z

As pointed out in http://bugzilla.kernel.org/show_bug.cgi?id=7922, dynamic blockdev major allocation can hand out majors which LANANA has defined as being for local/experimental use. Cc: Torben Mathiasen Cc: Greg KH Cc: Al Viro Cc: Tomas Klas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds