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migration/postcopy: do_fixup is true when host_offset is non-zero 

This means it is not necessary to spare an extra variable to hold this
condition. Use host_offset directly is fine.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190710050814.31344-3-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Wei Yang 2019-07-10 13:08:14 +08:00 committed by Dr. David Alan Gilbert
parent e927a03317
commit 8996604fe6
1 changed files with 1 additions and 4 deletions
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5
migration/ram.c
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@ -2962,7 +2962,6 @@ static void postcopy_chunk_hostpages_pass(MigrationState *ms, bool unsent_pass,
}
while (run_start < pages) {
bool do_fixup = false;
unsigned long fixup_start_addr;
unsigned long host_offset;
@ -2972,7 +2971,6 @@ static void postcopy_chunk_hostpages_pass(MigrationState *ms, bool unsent_pass,
*/
host_offset = run_start % host_ratio;
if (host_offset) {
do_fixup = true;
fixup_start_addr = run_start - host_offset;
/*
* This host page has gone, the next loop iteration starts
@ -2994,7 +2992,6 @@ static void postcopy_chunk_hostpages_pass(MigrationState *ms, bool unsent_pass,
*/
host_offset = run_end % host_ratio;
if (host_offset) {
do_fixup = true;
fixup_start_addr = run_end - host_offset;
/*
* This host page has gone, the next loop iteration starts
@ -3010,7 +3007,7 @@ static void postcopy_chunk_hostpages_pass(MigrationState *ms, bool unsent_pass,
}
}
if (do_fixup) {
if (host_offset) {
unsigned long page;
/* Tell the destination to discard this page */