staging: lustre: obdclass: race lustre_profile_list

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Running multiple mounts at the same time results in
lustre_profile_list corruption when adding a new profile.

This patch adds a new spin_lock to protect the list and
avoid the bug

Signed-off-by: Hiroya Nozaki <nozaki.hiroya@jp.fujitsu.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6600
Reviewed-on: http://review.whamcloud.com/14896
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Jian Yu <jian.yu@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>

...

This commit is contained in:

Hiroya Nozaki 2016-10-27 18:11:55 -04:00 • committed by Greg Kroah-Hartman

parent b44c295dba

commit f65053dff9

3 changed files with 54 additions and 8 deletions

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3

drivers/staging/lustre/lustre/include/obd_class.h

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2

drivers/staging/lustre/lustre/llite/llite_lib.c

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57

drivers/staging/lustre/lustre/obdclass/obd_config.c

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