diff mbox series

[Stable-9.2.3,44/51] xen: No need to flush the mapcache for grants

Message ID 20250315061801.622606-44-mjt@tls.msk.ru (mailing list archive)
State New
Headers show
Series Patch Round-up for stable 9.2.3, freeze on 2025-03-24 | expand

Commit Message

Michael Tokarev March 15, 2025, 6:17 a.m. UTC 
From: Stefano Stabellini <stefano.stabellini@amd.com>

On IOREQ_TYPE_INVALIDATE we need to invalidate the mapcache for regular
mappings. Since recently we started reusing the mapcache also to keep
track of grants mappings. However, there is no need to remove grant
mappings on IOREQ_TYPE_INVALIDATE requests, we shouldn't do that. So
remove the function call.

Fixes: 9ecdd4bf08 (xen: mapcache: Add support for grant mappings)
Cc: qemu-stable@nongnu.org
Reported-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Anthony PERARD <anthony.perard@vates.tech>
Message-Id: <20250206194915.3357743-2-edgar.iglesias@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@vates.tech>
(cherry picked from commit 68adcc784bad13421ac7211c316a751fb99fcb94)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff mbox series

Patch

diff --git a/hw/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c
index 18ba7b1d8f..cd412493ea 100644
--- a/hw/xen/xen-mapcache.c
+++ b/hw/xen/xen-mapcache.c
@@ -700,7 +700,6 @@  void xen_invalidate_map_cache(void)
     bdrv_drain_all();
 
     xen_invalidate_map_cache_single(mapcache);
-    xen_invalidate_map_cache_single(mapcache_grants);
 }
 
 static uint8_t *xen_replace_cache_entry_unlocked(MapCache *mc,