diff options
| author | Wei Yang | 2019-08-06 02:46:48 +0200 |
|---|---|---|
| committer | Dr. David Alan Gilbert | 2019-08-14 18:33:14 +0200 |
| commit | 9dec3cc3f4545b8035ac7bf0854b81669b18c516 (patch) | |
| tree | 2df80fedd7f528b4341fe492112aa89034ae5249 /migration | |
| parent | migration/postcopy: simplify calculation of run_start and fixup_start_addr (diff) | |
| download | qemu-9dec3cc3f4545b8035ac7bf0854b81669b18c516.tar.gz qemu-9dec3cc3f4545b8035ac7bf0854b81669b18c516.tar.xz qemu-9dec3cc3f4545b8035ac7bf0854b81669b18c516.zip | |
migration/postcopy: use QEMU_IS_ALIGNED to replace host_offset
Use QEMU_IS_ALIGNED for the check, it would be more consistent with
other align calculations.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190806004648.8659-3-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/ram.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/migration/ram.c b/migration/ram.c index d2184c3cfc..eee68a7991 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -2955,14 +2955,12 @@ static void postcopy_chunk_hostpages_pass(MigrationState *ms, bool unsent_pass, } while (run_start < pages) { - unsigned long host_offset; /* * If the start of this run of pages is in the middle of a host * page, then we need to fixup this host page. */ - host_offset = run_start % host_ratio; - if (!host_offset) { + if (QEMU_IS_ALIGNED(run_start, host_ratio)) { /* Find the end of this run */ if (unsent_pass) { run_start = find_next_bit(unsentmap, pages, run_start + 1); @@ -2974,10 +2972,9 @@ static void postcopy_chunk_hostpages_pass(MigrationState *ms, bool unsent_pass, * run doesn't finish at the end of a host page * and we need to discard. */ - host_offset = run_start % host_ratio; } - if (host_offset) { + if (!QEMU_IS_ALIGNED(run_start, host_ratio)) { unsigned long page; unsigned long fixup_start_addr = QEMU_ALIGN_DOWN(run_start, host_ratio); |