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Avoid cookie sharing between forked processes

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Before fork, ensure cookie is reset so it's not shared between processes.
This commit is contained in:
Zdenek Kabelac 2011-01-10 19:31:02 +00:00
parent 2e776f6b50
commit c141fe1c44
3 changed files with 5 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.81 -
===================================
Fix cookie sharing between forked lvm processes (2.02.80).
Version 2.02.80 - 10th January 2011
===================================

2
lib/misc/lvm-exec.c
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@ -54,6 +54,8 @@ int exec_cmd(struct cmd_context *cmd, const char *const argv[], int *rstatus)
log_verbose("Executing: %s", _verbose_args(argv, buf, sizeof(buf)));
fs_unlock(); /* Flush oops and ensure cookie is not shared */
if ((pid = fork()) == -1) {
log_error("fork failed: %s", strerror(errno));
return 0;

2
tools/polldaemon.c
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@ -42,6 +42,8 @@ static int _become_daemon(struct cmd_context *cmd)
sigaction(SIGCHLD, &act, NULL);
fs_unlock(); /* Flush oops and ensure cookie is not shared */
if ((pid = fork()) == -1) {
log_error("fork failed: %s", strerror(errno));
return -1;