* [PATCH 0/6] make request_module() killable
@ 2012-02-14 16:46 Oleg Nesterov
0 siblings, 0 replies; 2+ messages in thread
From: Oleg Nesterov @ 2012-02-14 16:46 UTC (permalink / raw)
To: Andrew Morton
Cc: apw, arjan, fhrbata, john.johansen, penguin-kernel, rientjes,
rusty, tj, linux-kernel
As Tetsuo pointed out, request_module() is very much unfriendly wrt OOM.
It needs "a lot" of time/memory to finish while the caller is blocked in
TASK_UNINTERRUPTIBLE.
Changes:
- improve the comments a bit
- reorder the changes so that 3/6 which changes kABI can be
skipped, to simplify the backporting
- tried to test, seems to work
This series is orthogonal to kmod-avoid-deadlock-by-recursive-kmod-call.patch
(which I still think should be replaced, I'll try to return to this later).
3/6 depends on usermodehelper-use-umh_wait_proc-consistently.patch
Many thanks to Tetsuo for the discussion.
Oleg.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH 0/6] make request_module() killable
@ 2012-02-14 16:47 Oleg Nesterov
0 siblings, 0 replies; 2+ messages in thread
From: Oleg Nesterov @ 2012-02-14 16:47 UTC (permalink / raw)
To: Andrew Morton
Cc: apw, arjan, fhrbata, john.johansen, penguin-kernel, rientjes,
rusty, tj, linux-kernel
As Tetsuo pointed out, request_module() is very much unfriendly wrt OOM.
It needs "a lot" of time/memory to finish while the caller is blocked in
TASK_UNINTERRUPTIBLE.
Changes:
- improve the comments a bit
- reorder the changes so that 3/6 which changes kABI can be
skipped, to simplify the backporting
- tried to test, seems to work
This series is orthogonal to kmod-avoid-deadlock-by-recursive-kmod-call.patch
(which I still think should be replaced, I'll try to return to this later).
3/6 depends on usermodehelper-use-umh_wait_proc-consistently.patch
Many thanks to Tetsuo for the discussion.
Oleg.
^ permalink raw reply [flat|nested] 2+ messages in thread
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