tree e650b3894abf254694e71a8f11ce8b3f72ec5558 parent dbf9227bd3dff71c3c2f540cc3e96098d2ab41e7 author Hal Rosenstock <[EMAIL PROTECTED]> Thu, 28 Jul 2005 01:45:31 -0700 committer Linus Torvalds <[EMAIL PROTECTED]> Thu, 28 Jul 2005 06:26:11 -0700
[PATCH] IB: Eliminate MAD cache leak associated with local completions Eliminate MAD cache leak associated with local completions. Also, when canceling MAD, empty local completion list as well. Signed-off-by: Hal Rosenstock <[EMAIL PROTECTED]> Cc: Roland Dreier <[EMAIL PROTECTED]> Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> drivers/infiniband/core/mad.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1994,6 +1994,8 @@ static void cancel_mads(struct ib_mad_ag /* Empty wait list to prevent receives from finding a request */ list_splice_init(&mad_agent_priv->wait_list, &cancel_list); + /* Empty local completion list as well */ + list_splice_init(&mad_agent_priv->local_list, &cancel_list); spin_unlock_irqrestore(&mad_agent_priv->lock, flags); /* Report all cancelled requests */ @@ -2108,6 +2110,7 @@ static void local_completions(void *data struct ib_mad_local_private *local; struct ib_mad_agent_private *recv_mad_agent; unsigned long flags; + int recv = 0; struct ib_wc wc; struct ib_mad_send_wc mad_send_wc; @@ -2123,10 +2126,10 @@ static void local_completions(void *data recv_mad_agent = local->recv_mad_agent; if (!recv_mad_agent) { printk(KERN_ERR PFX "No receive MAD agent for local completion\n"); - kmem_cache_free(ib_mad_cache, local->mad_priv); goto local_send_completion; } + recv = 1; /* * Defined behavior is to complete response * before request @@ -2169,6 +2172,8 @@ local_send_completion: spin_lock_irqsave(&mad_agent_priv->lock, flags); list_del(&local->completion_list); atomic_dec(&mad_agent_priv->refcount); + if (!recv) + kmem_cache_free(ib_mad_cache, local->mad_priv); kfree(local); } spin_unlock_irqrestore(&mad_agent_priv->lock, flags); - To unsubscribe from this list: send the line "unsubscribe bk-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html