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LU-15014 obdclass: lu_ref_add() called in atomic context
For the native Linux client testing I turn on lu_ref
debugging. When turned on the following errors occur:
[ 2885.946815] Call Trace:
[ 2885.951240] dump_stack+0x68/0x9b
[ 2885.956523] ___might_sleep+0x205/0x260
[ 2885.962245] lu_ref_add+0x25/0x40 [obdclass]
[ 2885.968442] vvp_pgcache_current+0x101/0x1a0 [lustre]
[ 2885.975370] seq_read+0x1ab/0x3c0
and
[ 7042.102529] dump_stack+0x68/0x9b
[ 7042.107328] ___might_sleep+0x205/0x260
[ 7042.112647] lu_ref_add+0x25/0x40 [obdclass]
[ 7042.118385] mdc_lock_upcall+0x154/0x4d0 [mdc]
[ 7042.124275] mdc_enqueue_send+0x508/0x580 [mdc]
[ 7042.130225] ? mdc_lock_lvb_update+0x280/0x280 [mdc]
This is easily fixed with introducing a lu_object_ref_add_atomic()
function.
Test-Parameters: trivial
Change-Id: Ife7d255079a836570661f669c1e9c7c0ce6de4aa
Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-on: https://review.whamcloud.com/44969
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>