[PATCH v2 3/6] migration: ram_release_pages() always receive 1 page as argument

Juan Quintela posted 6 patches 4 years, 1 month ago
Maintainers: Juan Quintela <quintela@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>
There is a newer version of this series
[PATCH v2 3/6] migration: ram_release_pages() always receive 1 page as argument
Posted by Juan Quintela 4 years, 1 month ago
Remove the pages argument. And s/pages/page/

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

--

Use 1LL instead of casts

Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 migration/ram.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/migration/ram.c b/migration/ram.c
index 7223b0d8ca..0b98862b9e 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -1204,13 +1204,13 @@ static int save_zero_page(RAMState *rs, RAMBlock *block, ram_addr_t offset)
     return -1;
 }
 
-static void ram_release_pages(const char *rbname, uint64_t offset, int pages)
+static void ram_release_page(const char *rbname, uint64_t offset)
 {
     if (!migrate_release_ram() || !migration_in_postcopy()) {
         return;
     }
 
-    ram_discard_range(rbname, offset, ((ram_addr_t)pages) << TARGET_PAGE_BITS);
+    ram_discard_range(rbname, offset, 1ULL << TARGET_PAGE_BITS);
 }
 
 /*
@@ -1365,7 +1365,7 @@ static bool do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block,
     }
 
 exit:
-    ram_release_pages(block->idstr, offset & TARGET_PAGE_MASK, 1);
+    ram_release_page(block->idstr, offset & TARGET_PAGE_MASK);
     return zero_page;
 }
 
@@ -2153,7 +2153,7 @@ static int ram_save_target_page(RAMState *rs, PageSearchStatus *pss)
             xbzrle_cache_zero_page(rs, block->offset + offset);
             XBZRLE_cache_unlock();
         }
-        ram_release_pages(block->idstr, offset, res);
+        ram_release_page(block->idstr, offset);
         return res;
     }
 
-- 
2.33.1


Re: [PATCH v2 3/6] migration: ram_release_pages() always receive 1 page as argument
Posted by Peter Xu 4 years, 1 month ago
On Tue, Dec 21, 2021 at 01:52:32PM +0100, Juan Quintela wrote:
> -static void ram_release_pages(const char *rbname, uint64_t offset, int pages)
> +static void ram_release_page(const char *rbname, uint64_t offset)
>  {
>      if (!migrate_release_ram() || !migration_in_postcopy()) {
>          return;
>      }
>  
> -    ram_discard_range(rbname, offset, ((ram_addr_t)pages) << TARGET_PAGE_BITS);
> +    ram_discard_range(rbname, offset, 1ULL << TARGET_PAGE_BITS);

This is TARGET_PAGE_SIZE, afaict.. anyway,

Reviewed-by: Peter Xu <peterx@redhat.com>

-- 
Peter Xu