staging: lustre: llite: avoid a deadlock in page write

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For a partial page write, it will have to issue a READ RPC firstly
to get a full uptodate page. If another page is already locked by
this thread it can easily cause deadlock.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4873
Reviewed-on: http://review.whamcloud.com/9928
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Jinshan Xiong 2016-08-16 16:18:44 -04:00 • committed by Greg Kroah-Hartman

parent 9b58714f9a

commit 91196c20a3

1 changed files with 3 additions and 2 deletions

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

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