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  1. 20 4月, 2006 1 次提交
  3. 01 4月, 2006 1 次提交
    • O
      [PATCH] Don't pass boot parameters to argv_init[] · 9b41046c
      由 OGAWA Hirofumi 提交于 
      The boot cmdline is parsed in parse_early_param() and
parse_args(,unknown_bootoption).

And __setup() is used in obsolete_checksetup().

	start_kernel()
		-> parse_args()
			-> unknown_bootoption()
				-> obsolete_checksetup()

If __setup()'s callback (->setup_func()) returns 1 in
obsolete_checksetup(), obsolete_checksetup() thinks a parameter was
handled.

If ->setup_func() returns 0, obsolete_checksetup() tries other
->setup_func().  If all ->setup_func() that matched a parameter returns 0,
a parameter is seted to argv_init[].

Then, when runing /sbin/init or init=app, argv_init[] is passed to the app.
If the app doesn't ignore those arguments, it will warning and exit.

This patch fixes a wrong usage of it, however fixes obvious one only.
Signed-off-by: NOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      9b41046c
  5. 25 3月, 2006 1 次提交
  7. 24 3月, 2006 1 次提交
  9. 19 3月, 2006 3 次提交
  11. 08 2月, 2006 1 次提交
  13. 06 2月, 2006 1 次提交
  15. 24 1月, 2006 2 次提交
    • N
      [BLOCK] elevator: allow default scheduler to potentially be modular · 248d5ca5
      由 Nate Diller 提交于 
      Jens has decided that allowing the default scheduler to be a module is
a bug, and should not be allowed under kconfig.  However, I find that
scenario useful for debugging, and wish for the kernel to be able to
handle this situation without OOPSing, if I enable such an option in
the .config directly.  This patch dynamically checks for the presence
of the compiled-in default, and falls back to no-op, emitting a
suitable error message, when the default is not available

Tested for a range of boot options on 2.6.16-rc1-mm2.
Signed-off-by: NNate Diller <nate.diller@gmail.com>
Signed-off-by: NJens Axboe <axboe@suse.de>
      248d5ca5
    • N
      [BLOCK] elevator: default choice selection · 5f003976
      由 Nate Diller 提交于 
      My previous default iosched patch did a poor job dealing with the
'elevator=' boot-time option.  The old behavior falls back to the
compiled-in default if the requested one is not registered at boot
time.  This patch dynamically evaluates which default
to use, and emits a suitable error message when the requested scheduler
is not available.  It also does the 'as' -> 'anticipatory' conversion
before elevator registration, which along with a modified registration
function, allows it to correctly indicate which default scheduler is
in use.

Tested for a range of boot options on 2.6.16-rc1-mm2.
Signed-off-by: NNate Diller <nate.diller@gmail.com>
Signed-off-by: NJens Axboe <axboe@suse.de>
      5f003976
  17. 17 1月, 2006 1 次提交
  19. 16 1月, 2006 2 次提交
  21. 13 1月, 2006 1 次提交
    • T
      [PATCH] fix queue stalling while barrier sequencing · 1bc691d3
      由 Tejun Heo 提交于 
      If ordered tag isn't supported, request ordering for barrier
sequencing is performed by queue draining, which basically hangs the
request queue until elv_completed_request() reports completion of all
previous fs requests.

The condition check in elv_completed_request() was only performed for
fs requests.  If a special request is queued between the last
to-be-drained request and the barrier sequence, draining is never
completed and the queue is stalled forever.

This patch moves the end-of-draining condition check such that it's
performed for all requests.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJens Axboe <axboe@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      1bc691d3
  23. 09 1月, 2006 1 次提交
  25. 06 1月, 2006 2 次提交
    • T
      [BLOCK] reimplement handling of barrier request · 797e7dbb
      由 Tejun Heo 提交于 
      Reimplement handling of barrier requests.

* Flexible handling to deal with various capabilities of
  target devices.
* Retry support for falling back.
* Tagged queues which don't support ordered tag can do ordered.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJens Axboe <axboe@suse.de>
      797e7dbb
    • T
      [BLOCK] add @uptodate to end_that_request_last() and @error to rq_end_io_fn() · 8ffdc655
      由 Tejun Heo 提交于 
      add @uptodate argument to end_that_request_last() and @error
to rq_end_io_fn().  there's no generic way to pass error code
to request completion function, making generic error handling
of non-fs request difficult (rq->errors is driver-specific and
each driver uses it differently).  this patch adds @uptodate
to end_that_request_last() and @error to rq_end_io_fn().

for fs requests, this doesn't really matter, so just using the
same uptodate argument used in the last call to
end_that_request_first() should suffice.  imho, this can also
help the generic command-carrying request jens is working on.
Signed-off-by: Ntejun heo <htejun@gmail.com>
Signed-Off-By: NJens Axboe <axboe@suse.de>
      8ffdc655
  27. 19 11月, 2005 1 次提交
  29. 12 11月, 2005 6 次提交
  31. 04 11月, 2005 1 次提交
  33. 02 11月, 2005 1 次提交
    • T
      [PATCH] blk: fix dangling pointer access in __elv_add_request · ca23509f
      由 Tejun Heo 提交于 
      cfq's add_req_fn callback may invoke q->request_fn directly and
depending on low-level driver used and timing, a queued request may be
finished & deallocated before add_req_fn callback returns.  So,
__elv_add_request must not access rq after it's passed to add_req_fn
callback.

This patch moves rq_mergeable test above add_req_fn().  This may
result in q->last_merge pointing to REQ_NOMERGE request if add_req_fn
callback sets it but as RQ_NOMERGE is checked again when blk layer
actually tries to merge requests, this does not cause any problem.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      ca23509f
  35. 31 10月, 2005 3 次提交
  37. 28 10月, 2005 10 次提交