| 1 | --- a/copy/xfs_copy.c |
| 2 | +++ b/copy/xfs_copy.c |
| 3 | @@ -463,6 +463,15 @@ read_ag_header(int fd, xfs_agnumber_t ag |
| 4 | } |
| 5 | |
| 6 | |
| 7 | +static void sig_mask(int type) |
| 8 | +{ |
| 9 | + sigset_t mask; |
| 10 | + sigemptyset(&mask); |
| 11 | + sigaddset(&mask, SIGCHLD); |
| 12 | + sigprocmask(type, &mask, NULL); |
| 13 | +} |
| 14 | + |
| 15 | + |
| 16 | void |
| 17 | write_wbuf(void) |
| 18 | { |
| 19 | @@ -478,9 +487,9 @@ write_wbuf(void) |
| 20 | if (target[i].state != INACTIVE) |
| 21 | pthread_mutex_unlock(&targ[i].wait); /* wake up */ |
| 22 | |
| 23 | - sigrelse(SIGCHLD); |
| 24 | + sig_mask(SIG_UNBLOCK); |
| 25 | pthread_mutex_lock(&mainwait); |
| 26 | - sighold(SIGCHLD); |
| 27 | + sig_mask(SIG_BLOCK); |
| 28 | } |
| 29 | |
| 30 | |
| 31 | @@ -847,7 +856,7 @@ main(int argc, char **argv) |
| 32 | /* set up sigchild signal handler */ |
| 33 | |
| 34 | signal(SIGCHLD, handler); |
| 35 | - sighold(SIGCHLD); |
| 36 | + sig_mask(SIG_BLOCK); |
| 37 | |
| 38 | /* make children */ |
| 39 | |
| 40 | |
