linux.git/drivers/mtd/mtd_blkdevs.c, branch v2.6.26

[MTD] Always initialise mutex in new mtd_blktrans_dev.

2007-12-03T12:46:12+00:00

We were only initialising the mutex in the case where the new device was
automatically allocated the highest minor number. If the caller
specified a minor number, or if it filled in a free slot which was made
by a previous device deregistering, the mutex wouldn't get initialised
when we jumped out of the loop.

Reported by Monte Copeland 

Signed-off-by: David Woodhouse

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

2007-07-23T09:20:10+00:00

Freezer: make kernel threads nonfreezable by default

2007-07-17T17:23:02+00:00

Currently, the freezer treats all tasks as freezable, except for the kernel
threads that explicitly set the PF_NOFREEZE flag for themselves.  This
approach is problematic, since it requires every kernel thread to either
set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't
care for the freezing of tasks at all.

It seems better to only require the kernel threads that want to or need to
be frozen to use some freezer-related code and to remove any
freezer-related code from the other (nonfreezable) kernel threads, which is
done in this patch.

The patch causes all kernel threads to be nonfreezable by default (ie.  to
have PF_NOFREEZE set by default) and introduces the set_freezable()
function that should be called by the freezable kernel threads in order to
unset PF_NOFREEZE.  It also makes all of the currently freezable kernel
threads call set_freezable(), so it shouldn't cause any (intentional)
change of behaviour to appear.  Additionally, it updates documentation to
describe the freezing of tasks more accurately.

[akpm@linux-foundation.org: build fixes]
Signed-off-by: Rafael J. Wysocki 
Acked-by: Nigel Cunningham 
Cc: Pavel Machek 
Cc: Oleg Nesterov 
Cc: Gautham R Shenoy 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[MTD] mtdcore.c: share syms with mtd_blkdev.c

2007-06-28T19:24:50+00:00

Fix the sparse warnings generated by the implicit
dependency of mtd_blkdevs.c and mtd_core.c for the
two symbols mtd_table and mtd_table_mutex. This is
done by adding an local header file mtdcore.h to
define these (including the warning about the
non-proliferation of these symbols).

Signed-off-by: Ben Dooks 
Signed-off-by: David Woodhouse

[MTD] mtd_blkdevs.c: do not export 'mtd_blktrans_ops'

2007-06-28T19:24:06+00:00

The mtd_blktrans_ops is not defined in any of the headers
and is indeed not used elsewhere in the kernel, so mark it
as static to reduce the warnings from sparse

drivers/mtd/mtd_blkdevs.c:204:32: warning: symbol 'mtd_blktrans_ops' was not declared. Should it be static?

Signed-off-by: Ben Dooks 
Signed-off-by: David Woodhouse

Clean up mutex_trylock noise

2007-05-08T18:15:13+00:00

Ingo Molnar's semaphore to mutex conversions left some noise on a few
trylock calls. Clean it up.

Signed-off-by: Jean Delvare 
Acked-by: Ingo Molnar 
Cc: David Woodhouse 
Cc: Mauro Carvalho Chehab 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[MTD] Finish conversion mtd_blkdevs to use the kthread API

2007-04-22T19:48:29+00:00

Remove waitqueue, 'exiting' flag and completion; use kthread APIs instead.

Signed-off-by: Christoph Hellwig 
Signed-off-by: David Woodhouse

[MTD] mtd_blkdevs: Convert to use the kthread API

2007-04-19T21:16:46+00:00

thread_run is used intead of kernel_thread, daemonize, and mucking
around blocking signals directly.

Signed-off-by: Eric W. Biederman 
Signed-off-by: David Woodhouse

[MTD] replace kmalloc+memset with kzalloc

2006-11-28T23:47:21+00:00

Signed-off-by: Yan Burman 
Signed-off-by: David Woodhouse

[MTD] Allow variable block sizes in mtd_blkdevs

2006-11-28T22:27:47+00:00

Currently, mtd_blkdevs enforces a block size of 512, even if the drivers
can seemingly request a different size. This patch fixes mtd_blkdevs so
block sizes other than 512 work correctly.

Signed-off-by: Richard Purdie 
Signed-off-by: David Woodhouse