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IB/ehca: Rework destroy_eq()

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The ibmebus_free_irq() function, which might sleep, was called with
interrupts disabled.  To fix this, make sure that no interrupts are
running by killing the interrupt tasklet.  Also lock the
shca_list_lock to protect against the poll_eqs_timer running
concurrently.

Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Alexander Schmidt
2009-12-09 10:11:04 -08:00
committed by Roland Dreier
parent 91d3f9bacd
commit 9420269428
3 changed files with 8 additions and 4 deletions
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drivers/infiniband/hw/ehca/ehca_classes.h
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@@ -375,6 +375,7 @@ extern rwlock_t ehca_qp_idr_lock;
extern rwlock_t ehca_cq_idr_lock;
extern struct idr ehca_qp_idr;
extern struct idr ehca_cq_idr;
extern spinlock_t shca_list_lock;
extern int ehca_static_rate;
extern int ehca_port_act_time;