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author | alfred <alfred@FreeBSD.org> | 2002-07-24 00:29:22 +0000 |
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committer | alfred <alfred@FreeBSD.org> | 2002-07-24 00:29:22 +0000 |
commit | 85762a62d478155e87c32b0f6b5208622f08a449 (patch) | |
tree | 40a1796b8e6a6df8e2b5c76760c2fb79e863ca56 /sys | |
parent | 330880812d23470d8e3d1d4d40fd2a3569bdfb39 (diff) | |
download | FreeBSD-src-85762a62d478155e87c32b0f6b5208622f08a449.zip FreeBSD-src-85762a62d478155e87c32b0f6b5208622f08a449.tar.gz |
Attempt to clarify comment in selrecord.
Diffstat (limited to 'sys')
-rw-r--r-- | sys/kern/sys_generic.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/sys/kern/sys_generic.c b/sys/kern/sys_generic.c index e4e40cf..165284c 100644 --- a/sys/kern/sys_generic.c +++ b/sys/kern/sys_generic.c @@ -1147,10 +1147,14 @@ selrecord(selector, sip) mtx_lock(&sellock); /* - * If the thread is NULL then take ownership of selinfo - * however if the thread is not NULL and the thread points to - * someone else, then we have a collision, otherwise leave it alone - * as we've owned it in a previous selrecord on this selinfo. + * If the selinfo's thread pointer is NULL then take ownership of it. + * + * If the thread pointer is not NULL and it points to another + * thread, then we have a collision. + * + * If the thread pointer is not NULL and points back to us then leave + * it alone as we've already added pointed it at us and added it to + * our list. */ if (sip->si_thread == NULL) { sip->si_thread = selector; |