staging/lustre/o2iblnd: connection refcount fix for kiblnd_post_rx

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kiblnd_post_rx() can't refer to rx::rx_conn anymore after
ib_post_recv() because this rx can be polled out by another thread
which may drop this rx and destroy rx::rx_conn.

This patch fixes this issue by taking an extra refcount on connection
before calling ib_post_recv().

Signed-off-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-on: http://review.whamcloud.com/12852
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5678
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Amir Shehata <amir.shehata@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Liang Zhen 2015-09-14 18:41:24 -04:00 • committed by Greg Kroah-Hartman

parent bbaa9c1032

commit 6fa3c577bb

1 changed files with 12 additions and 6 deletions

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drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c

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