[Qemu-devel] [PATCH 43/59] ram: Rename qemu_target_page_bits() to qemu_target_page_size()

[Juan Quintela <quintela@redhat.com>]

It was used as a size in all cases except one.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 exec.c                   | 4 ++--
 include/sysemu/sysemu.h  | 2 +-
 migration/migration.c    | 4 ++--
 migration/postcopy-ram.c | 8 ++++----
 migration/savevm.c       | 8 ++++----
 5 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/exec.c b/exec.c
index c97ef4a..7a640c7 100644
--- a/exec.c
+++ b/exec.c
@@ -3307,9 +3307,9 @@ int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
  * Allows code that needs to deal with migration bitmaps etc to still be built
  * target independent.
  */
-size_t qemu_target_page_bits(void)
+size_t qemu_target_page_size(void)
 {
-    return TARGET_PAGE_BITS;
+    return TARGET_PAGE_SIZE;
 }
 
 #endif
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 576c7ce..16175f7 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -67,7 +67,7 @@ int qemu_reset_requested_get(void);
 void qemu_system_killed(int signal, pid_t pid);
 void qemu_system_reset(bool report);
 void qemu_system_guest_panicked(GuestPanicInformation *info);
-size_t qemu_target_page_bits(void);
+size_t qemu_target_page_size(void);
 
 void qemu_add_exit_notifier(Notifier *notify);
 void qemu_remove_exit_notifier(Notifier *notify);
diff --git a/migration/migration.c b/migration/migration.c
index 7da16cf..92a3754 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -654,7 +654,7 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s)
     info->ram->skipped = 0;
     info->ram->normal = norm_mig_pages_transferred();
     info->ram->normal_bytes = norm_mig_pages_transferred() *
-        (1ul << qemu_target_page_bits());
+        qemu_target_page_size();
     info->ram->mbps = s->mbps;
     info->ram->dirty_sync_count = ram_dirty_sync_count();
     info->ram->postcopy_requests = ram_postcopy_requests();
@@ -2009,7 +2009,7 @@ static void *migration_thread(void *opaque)
                10000 is a small enough number for our purposes */
             if (ram_dirty_pages_rate() && transferred_bytes > 10000) {
                 s->expected_downtime = ram_dirty_pages_rate() *
-                    (1ul << qemu_target_page_bits()) / bandwidth;
+                    qemu_target_page_size() / bandwidth;
             }
 
             qemu_file_reset_rate_limit(s->to_dst_file);
diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c
index dc80dbb..8756364 100644
--- a/migration/postcopy-ram.c
+++ b/migration/postcopy-ram.c
@@ -123,7 +123,7 @@ bool postcopy_ram_supported_by_host(void)
     struct uffdio_range range_struct;
     uint64_t feature_mask;
 
-    if ((1ul << qemu_target_page_bits()) > pagesize) {
+    if (qemu_target_page_size() > pagesize) {
         error_report("Target page size bigger than host page size");
         goto out;
     }
@@ -745,10 +745,10 @@ PostcopyDiscardState *postcopy_discard_send_init(MigrationState *ms,
 void postcopy_discard_send_range(MigrationState *ms, PostcopyDiscardState *pds,
                                 unsigned long start, unsigned long length)
 {
-    size_t tp_bits = qemu_target_page_bits();
+    size_t tp_size = qemu_target_page_size();
     /* Convert to byte offsets within the RAM block */
-    pds->start_list[pds->cur_entry] = (start - pds->offset) << tp_bits;
-    pds->length_list[pds->cur_entry] = length << tp_bits;
+    pds->start_list[pds->cur_entry] = (start - pds->offset) * tp_size;
+    pds->length_list[pds->cur_entry] = length * tp_size;
     trace_postcopy_discard_send_range(pds->ramblock_name, start, length);
     pds->cur_entry++;
     pds->nsentwords++;
diff --git a/migration/savevm.c b/migration/savevm.c
index 853a81a..bbf055d 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -871,7 +871,7 @@ void qemu_savevm_send_postcopy_advise(QEMUFile *f)
 {
     uint64_t tmp[2];
     tmp[0] = cpu_to_be64(ram_pagesize_summary());
-    tmp[1] = cpu_to_be64(1ul << qemu_target_page_bits());
+    tmp[1] = cpu_to_be64(qemu_target_page_size());
 
     trace_qemu_savevm_send_postcopy_advise();
     qemu_savevm_command_send(f, MIG_CMD_POSTCOPY_ADVISE, 16, (uint8_t *)tmp);
@@ -1390,13 +1390,13 @@ static int loadvm_postcopy_handle_advise(MigrationIncomingState *mis)
     }
 
     remote_tps = qemu_get_be64(mis->from_src_file);
-    if (remote_tps != (1ul << qemu_target_page_bits())) {
+    if (remote_tps != qemu_target_page_size()) {
         /*
          * Again, some differences could be dealt with, but for now keep it
          * simple.
          */
-        error_report("Postcopy needs matching target page sizes (s=%d d=%d)",
-                     (int)remote_tps, 1 << qemu_target_page_bits());
+        error_report("Postcopy needs matching target page sizes (s=%d d=%zd)",
+                     (int)remote_tps, qemu_target_page_size());
         return -1;
     }
 
-- 
2.9.3