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mdmon: close small window of invalid mon_tid 

There is a small chance that the manager tries to wake the monitor before
mon_tid is set.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2008-07-14 14:59:39 -07:00
parent 5dcfcb715d
commit 2cc98f9ea5
1 changed files with 3 additions and 6 deletions
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9
mdmon.c
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@ -52,7 +52,6 @@ int run_child(void *v)
{
struct supertype *c = v;
mon_tid = syscall(SYS_gettid);
do_monitor(c);
return 0;
}
@ -60,16 +59,14 @@ int run_child(void *v)
int clone_monitor(struct supertype *container)
{
static char stack[4096];
int rv;
rv = clone(run_child, stack+4096-64,
mon_tid = clone(run_child, stack+4096-64,
CLONE_FS|CLONE_FILES|CLONE_VM|CLONE_SIGHAND|CLONE_THREAD,
container);
mgr_tid = syscall(SYS_gettid);
return rv;
return mon_tid;
}
static struct superswitch *find_metadata_methods(char *vers)