Author: cem Date: Mon Mar 16 22:25:25 2020 New Revision: 359022 URL: https://svnweb.freebsd.org/changeset/base/359022
Log: Remove misleading / redundant bzero in callout_callwheel_init The intent seems to be zeroing all of the cc_cpu array, or its singleton on such platforms. The assumption made is that the BSP is always zero. The code smell was introduced in r326218, which changed the prior explicit zero to 'curcpu'. The change is only valid if curcpu continues to be zero, contrary to the aim expressed in that commit message. So, more succinctly, the expression could be: memset(cc_cpu,0,sizeof(cc_cpu)). However, there's no point. cc_cpu lives in the data section and has a zero initial value already. So this revision just removes the problematic statement. No functional change. Appeases a (false positive, ish) Coverity CID. CID: 1383567 Reported by: Puneeth Jothaiah <puneethkumar.jothaia AT dell.com> Reviewed by: kib Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D24089 Modified: head/sys/kern/kern_timeout.c Modified: head/sys/kern/kern_timeout.c ============================================================================== --- head/sys/kern/kern_timeout.c Mon Mar 16 21:12:46 2020 (r359021) +++ head/sys/kern/kern_timeout.c Mon Mar 16 22:25:25 2020 (r359022) @@ -285,7 +285,6 @@ callout_callwheel_init(void *dummy) * XXX: Clip callout to result of previous function of maxusers * maximum 384. This is still huge, but acceptable. */ - memset(CC_CPU(curcpu), 0, sizeof(cc_cpu)); ncallout = imin(16 + maxproc + maxfiles, 18508); TUNABLE_INT_FETCH("kern.ncallout", &ncallout); _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
