A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

[SCSI] libfc: avoid exchanges collision during lport reset

Browse source 
Currently timer delay is large and is using msleep to avoid
avoid exchanges collision across lport reset, so instead
do this by initializing exches pool indexes during
reset also.

Signed-off-by: Vasu Dev <[email protected]>
Tested-by: Bhanu Prakash Gollapudi <[email protected]>
Signed-off-by: Yi Zou <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Vasu Dev 2011-10-28 11:34:17 -07:00 • committed by James Bottomley
commit b6e3c84034
2 changed files with 5 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/scsi/libfc/fc_exch.c
View file

@ -1793,6 +1793,9 @@ restart:
goto restart;
}
}
pool->next_index = 0;
pool->left = FC_XID_UNKNOWN;
pool->right = FC_XID_UNKNOWN;
spin_unlock_bh(&pool->lock);
}
@ -2281,6 +2284,7 @@ struct fc_exch_mgr *fc_exch_mgr_alloc(struct fc_lport *lport,
goto free_mempool;
for_each_possible_cpu(cpu) {
pool = per_cpu_ptr(mp->pool, cpu);
pool->next_index = 0;
pool->left = FC_XID_UNKNOWN;
pool->right = FC_XID_UNKNOWN;
spin_lock_init(&pool->lock);

10
drivers/scsi/libfc/fc_lport.c
View file

@ -1030,16 +1030,8 @@ static void fc_lport_enter_reset(struct fc_lport *lport)
FCH_EVT_LIPRESET, 0);
fc_vports_linkchange(lport);
fc_lport_reset_locked(lport);
if (lport->link_up) {
/*
* Wait upto resource allocation time out before
* doing re-login since incomplete FIP exchanged
* from last session may collide with exchanges
* in new session.
*/
msleep(lport->r_a_tov);
if (lport->link_up)
fc_lport_enter_flogi(lport);
}
}
/**