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From: Juan Quintela <quintela@redhat.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
	libvir-list@redhat.com, Stefan Hajnoczi <stefanha@redhat.com>,
	Fam Zheng <fam@euphon.net>, Hanna Reitz <hreitz@redhat.com>,
	Li Zhijian <lizhijian@fujitsu.com>, Peter Xu <peterx@redhat.com>,
	Leonardo Bras <leobras@redhat.com>,
	Juan Quintela <quintela@redhat.com>,
	Eric Blake <eblake@redhat.com>,
	Markus Armbruster <armbru@redhat.com>,
	Hailiang Zhang <zhanghailiang@xfusion.com>,
	qemu-block@nongnu.org, Fabiano Rosas <farosas@suse.de>
Subject: [PULL 06/38] migration: Rename ram_handle_compressed() to ram_handle_zero()
Date: Tue, 31 Oct 2023 10:01:10 +0100	[thread overview]
Message-ID: <20231031090142.13122-7-quintela@redhat.com> (raw)
In-Reply-To: <20231031090142.13122-1-quintela@redhat.com>

Now that we know it only handles zero, we can remove the ch parameter.

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231019085259.13307-3-quintela@redhat.com>
---
 migration/ram.h  |  2 +-
 migration/ram.c  | 10 +++++-----
 migration/rdma.c |  2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/migration/ram.h b/migration/ram.h
index 145c915ca7..3f724b2f02 100644
--- a/migration/ram.h
+++ b/migration/ram.h
@@ -60,7 +60,7 @@ int ram_discard_range(const char *block_name, uint64_t start, size_t length);
 int ram_postcopy_incoming_init(MigrationIncomingState *mis);
 int ram_load_postcopy(QEMUFile *f, int channel);
 
-void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
+void ram_handle_zero(void *host, uint64_t size);
 
 void ram_transferred_add(uint64_t bytes);
 void ram_release_page(const char *rbname, uint64_t offset);
diff --git a/migration/ram.c b/migration/ram.c
index 4bfb20c94a..e0ad732ee8 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -3446,7 +3446,7 @@ static inline void *colo_cache_from_block_offset(RAMBlock *block,
 }
 
 /**
- * ram_handle_compressed: handle the zero page case
+ * ram_handle_zero: handle the zero page case
  *
  * If a page (or a whole RDMA chunk) has been
  * determined to be zero, then zap it.
@@ -3455,10 +3455,10 @@ static inline void *colo_cache_from_block_offset(RAMBlock *block,
  * @ch: what the page is filled from.  We only support zero
  * @size: size of the zero page
  */
-void ram_handle_compressed(void *host, uint8_t ch, uint64_t size)
+void ram_handle_zero(void *host, uint64_t size)
 {
-    if (ch != 0 || !buffer_is_zero(host, size)) {
-        memset(host, ch, size);
+    if (!buffer_is_zero(host, size)) {
+        memset(host, 0, size);
     }
 }
 
@@ -4037,7 +4037,7 @@ static int ram_load_precopy(QEMUFile *f)
                 ret = -EINVAL;
                 break;
             }
-            ram_handle_compressed(host, ch, TARGET_PAGE_SIZE);
+            ram_handle_zero(host, TARGET_PAGE_SIZE);
             break;
 
         case RAM_SAVE_FLAG_PAGE:
diff --git a/migration/rdma.c b/migration/rdma.c
index 2d963fd147..e3493e3b3e 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -3597,7 +3597,7 @@ int rdma_registration_handle(QEMUFile *f)
                              comp->value);
                 goto err;
             }
-            ram_handle_compressed(host_addr, comp->value, comp->length);
+            ram_handle_zero(host_addr, comp->length);
             break;
 
         case RDMA_CONTROL_REGISTER_FINISHED:
-- 
2.41.0



  parent reply	other threads:[~2023-10-31  9:03 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-31  9:01 [PULL 00/38] Migration 20231031 patches Juan Quintela
2023-10-31  9:01 ` [PULL 01/38] migration/doc: Add contents Juan Quintela
2023-10-31  9:01 ` [PULL 02/38] migration/doc: Add documentation for backwards compatiblity Juan Quintela
2023-10-31  9:01 ` [PULL 03/38] migration/doc: How to migrate when hosts have different features Juan Quintela
2023-10-31  9:01 ` [PULL 04/38] migration/doc: We broke backwards compatibility Juan Quintela
2023-10-31  9:01 ` [PULL 05/38] migration: Receiving a zero page non zero is an error Juan Quintela
2023-10-31  9:01 ` Juan Quintela [this message]
2023-10-31  9:01 ` [PULL 07/38] migration: Give one error if trying to set MULTIFD and XBZRLE Juan Quintela
2023-10-31  9:01 ` [PULL 08/38] migration: Give one error if trying to set COMPRESSION " Juan Quintela
2023-10-31  9:01 ` [PULL 09/38] migration: Remove save_page_use_compression() Juan Quintela
2023-10-31  9:01 ` [PULL 10/38] migration: Make compress_data_with_multithreads return bool Juan Quintela
2023-10-31  9:01 ` [PULL 11/38] migration: Simplify compress_page_with_multithread() Juan Quintela
2023-10-31  9:01 ` [PULL 12/38] migration: Move busy++ to migrate_with_multithread Juan Quintela
2023-10-31  9:01 ` [PULL 13/38] migration: Create compress_update_rates() Juan Quintela
2023-10-31  9:01 ` [PULL 14/38] migration: Export send_queued_data() Juan Quintela
2023-10-31  9:01 ` [PULL 15/38] migration: Move ram_flush_compressed_data() to ram-compress.c Juan Quintela
2023-10-31  9:01 ` [PULL 16/38] migration: Merge flush_compressed_data() and compress_flush_data() Juan Quintela
2023-10-31  9:01 ` [PULL 17/38] migration: Rename ram_compressed_pages() to compress_ram_pages() Juan Quintela
2023-10-31  9:01 ` [PULL 18/38] migration/ram: Fix compilation with -Wshadow=local Juan Quintela
2023-10-31  9:01 ` [PULL 19/38] migration: rename vmstate_save_needed->vmstate_section_needed Juan Quintela
2023-10-31  9:01 ` [PULL 20/38] migration: set file error on subsection loading Juan Quintela
2023-10-31  9:01 ` [PULL 21/38] qemu-iotests: Filter warnings about block migration being deprecated Juan Quintela
2023-10-31  9:01 ` [PULL 22/38] migration: migrate 'inc' command option is deprecated Juan Quintela
2023-10-31  9:01 ` [PULL 23/38] migration: migrate 'blk' " Juan Quintela
2023-10-31  9:01 ` [PULL 24/38] migration: Deprecate block migration Juan Quintela
2023-10-31  9:01 ` [PULL 25/38] migration: Deprecate old compression method Juan Quintela
2023-10-31  9:01 ` [PULL 26/38] migration: Stop migration immediately in RDMA error paths Juan Quintela
2023-10-31  9:01 ` [PULL 27/38] qemu-file: Don't increment qemu_file_transferred at qemu_file_fill_buffer Juan Quintela
2023-10-31  9:01 ` [PULL 28/38] qemu_file: Use a stat64 for qemu_file_transferred Juan Quintela
2023-10-31  9:01 ` [PULL 29/38] qemu_file: total_transferred is not used anymore Juan Quintela
2023-10-31  9:01 ` [PULL 30/38] migration: Use the number of transferred bytes directly Juan Quintela
2023-10-31  9:01 ` [PULL 31/38] qemu_file: Remove unused qemu_file_transferred() Juan Quintela
2023-10-31  9:01 ` [PULL 32/38] qemu-file: Remove _noflush from qemu_file_transferred_noflush() Juan Quintela
2023-10-31  9:01 ` [PULL 33/38] migration: migration_transferred_bytes() don't need the QEMUFile Juan Quintela
2023-10-31  9:01 ` [PULL 34/38] migration: migration_rate_limit_reset() " Juan Quintela
2023-10-31  9:01 ` [PULL 35/38] qemu-file: Simplify qemu_file_get_error() Juan Quintela
2023-10-31  9:01 ` [PULL 36/38] migration: Use migration_transferred_bytes() Juan Quintela
2023-10-31  9:01 ` [PULL 37/38] migration: Remove transferred atomic counter Juan Quintela
2023-10-31  9:01 ` [PULL 38/38] qemu-file: Make qemu_fflush() return errors Juan Quintela
2023-10-31 23:31 ` [PULL 00/38] Migration 20231031 patches Stefan Hajnoczi

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