staging/lustre/llite: deadlock for page write

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Writing thread already locked page #1, and then wait for the
Writeback bit of page #2;

Ptlrpc thread is composing a write RPC, so it sets Writeback on
page #2 and tries to lock page #1 to make it ready.

Deadlocked.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-on: http://review.whamcloud.com/9036
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4540
Reviewed-by: wangdi <di.wang@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Jinshan Xiong 2016-03-30 19:48:43 -04:00 • committed by Greg Kroah-Hartman

parent c11599b8d5

commit d37dd10b71

1 changed files with 2 additions and 2 deletions

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drivers/staging/lustre/lustre/llite/rw26.c

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