migration: mmap error check fix
commit0e8b3cdfbc167f4bb7790ef744eaa1ac0e6959f9
authorEvgeny Yakovlev <eyakovlev@virtuozzo.com>
Fri, 29 Jul 2016 09:48:25 +0000 (29 12:48 +0300)
committerAmit Shah <amit.shah@redhat.com>
Thu, 11 Aug 2016 11:29:38 +0000 (11 16:59 +0530)
treeb6b358436127ea57c3e02e71ecaad48011df88cb
parente110aa919a84e6454017b60b222344f3ac6038b5
migration: mmap error check fix

mmap man page:
"On success, mmap() returns a pointer to the mapped area. On error, the
value MAP_FAILED (that is, (void *) -1) is returned, and errno  is  set
to indicate the cause of the error."

The check in postcopy_get_tmp_page is definitely wrong and should be
fixed.

Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
CC: Juan Quintela <quintela@redhat.com>
CC: Amit Shah <amit.shah@redhat.com>
Message-Id: <1469785705-16670-1-git-send-email-den@openvz.org>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
migration/postcopy-ram.c