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migration: use migrate_fd_close in migrate_fd_cleanup

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migrate_fd_cleanup will usually close the file descriptor via
buffered_file_close's call to migrate_fd_close.  However, in the case
of s->file == NULL it is "inlining" migrate_fd_close (almost: there is a
direct close() instead of using s->close(s)).  To fix the inconsistency
and clean up the code, allow multiple calls to migrate_fd_close and use
the function in migrate_fd_cleanup.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-09-27 13:25:45 +02:00
parent a6ef29096b
commit 8dc592e620
1 changed files with 8 additions and 11 deletions
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19
migration.c
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@ -243,21 +243,13 @@ static int migrate_fd_cleanup(MigrationState *s)
{ {
int ret = 0; int ret = 0;
if (s->fd != -1) {
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
}
if (s->file) { if (s->file) {
DPRINTF("closing file\n"); DPRINTF("closing file\n");
ret = qemu_fclose(s->file); ret = qemu_fclose(s->file);
s->file = NULL; s->file = NULL;
} }
if (s->fd != -1) { migrate_fd_close(s);
close(s->fd);
s->fd = -1;
}
return ret; return ret;
} }
@ -393,8 +385,13 @@ int migrate_fd_wait_for_unfreeze(MigrationState *s)
int migrate_fd_close(MigrationState *s) int migrate_fd_close(MigrationState *s)
{ {
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); int rc = 0;
return s->close(s); if (s->fd != -1) {
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
rc = s->close(s);
s->fd = -1;
}
return rc;
} }
void add_migration_state_change_notifier(Notifier *notify) void add_migration_state_change_notifier(Notifier *notify)