From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xensource.com
Subject: [PATCH 4 of 7] xenpaging: remove return values from functions that can not fail
Date: Thu, 31 Mar 2011 19:36:21 +0200 [thread overview]
Message-ID: <8825c216096a80e5590c.1301592981@localhost> (raw)
In-Reply-To: <patchbomb.1301592977@localhost>
# HG changeset patch
# User Olaf Hering <olaf@aepfle.de>
# Date 1301591599 -7200
# Node ID 8825c216096a80e5590ce075da273eeb06c1e7aa
# Parent cd35892de8ff2388aa46e3768393f217a3c63521
xenpaging: remove return values from functions that can not fail
get_request() and put_response() can not fail, remove return value
and update calling functions.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
diff -r cd35892de8ff -r 8825c216096a tools/xenpaging/xenpaging.c
--- a/tools/xenpaging/xenpaging.c Thu Mar 31 19:12:50 2011 +0200
+++ b/tools/xenpaging/xenpaging.c Thu Mar 31 19:13:19 2011 +0200
@@ -297,7 +297,7 @@
return -1;
}
-static int get_request(mem_event_t *mem_event, mem_event_request_t *req)
+static void get_request(mem_event_t *mem_event, mem_event_request_t *req)
{
mem_event_back_ring_t *back_ring;
RING_IDX req_cons;
@@ -316,11 +316,9 @@
back_ring->sring->req_event = req_cons + 1;
mem_event_ring_unlock(mem_event);
-
- return 0;
}
-static int put_response(mem_event_t *mem_event, mem_event_response_t *rsp)
+static void put_response(mem_event_t *mem_event, mem_event_response_t *rsp)
{
mem_event_back_ring_t *back_ring;
RING_IDX rsp_prod;
@@ -339,8 +337,6 @@
RING_PUSH_RESPONSES(back_ring);
mem_event_ring_unlock(mem_event);
-
- return 0;
}
static int xenpaging_evict_page(xenpaging_t *paging,
@@ -400,9 +396,7 @@
int ret;
/* Put the page info on the ring */
- ret = put_response(&paging->mem_event, rsp);
- if ( ret != 0 )
- goto out;
+ put_response(&paging->mem_event, rsp);
/* Notify policy of page being paged in */
if ( notify_policy )
@@ -612,12 +606,7 @@
while ( RING_HAS_UNCONSUMED_REQUESTS(&paging->mem_event.back_ring) )
{
- rc = get_request(&paging->mem_event, &req);
- if ( rc != 0 )
- {
- ERROR("Error getting request");
- goto out;
- }
+ get_request(&paging->mem_event, &req);
/* Check if the page has already been paged in */
if ( test_and_clear_bit(req.gfn, paging->bitmap) )
next prev parent reply other threads:[~2011-03-31 17:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-31 17:36 [PATCH 0 of 7] xenpaging updates Olaf Hering
2011-03-31 17:36 ` [PATCH 1 of 7] xenpaging: correct dropping pages to avoid full ring buffer Olaf Hering
2011-03-31 17:36 ` [PATCH 2 of 7] xenpaging: do not bounce p2mt to xenpaging Olaf Hering
2011-03-31 17:36 ` [PATCH 3 of 7] xenpaging: remove srand call Olaf Hering
2011-03-31 17:48 ` Patrick Colp
2011-03-31 18:17 ` Olaf Hering
2011-03-31 18:37 ` Patrick Colp
2011-04-01 8:20 ` Olaf Hering
2011-04-02 19:29 ` Patrick Colp
2011-03-31 17:36 ` Olaf Hering [this message]
2011-03-31 17:36 ` [PATCH 5 of 7] xenpaging: catch xc_mem_paging_resume errors Olaf Hering
2011-03-31 17:36 ` [PATCH 6 of 7] xenpaging: pass integer to xenpaging_populate_page Olaf Hering
2011-03-31 17:36 ` [PATCH 7 of 7] xenpaging: start xenpaging via config option Olaf Hering
2011-04-01 10:24 ` [PATCH 0 of 7] xenpaging updates Keir Fraser
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