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https://github.com/freebsd/freebsd-src
synced 2024-10-03 07:04:53 +00:00
kern: Remove CTLFLAG_NEEDGIANT from some more sysctls.
MFC after: 2 weeks
This commit is contained in:
parent
3b4c543322
commit
c6c52d8e39
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@ -223,7 +223,7 @@ sysctl_nmbclusters(SYSCTL_HANDLER_ARGS)
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return (error);
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}
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SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbclusters,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, &nmbclusters, 0,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, &nmbclusters, 0,
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sysctl_nmbclusters, "IU",
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"Maximum number of mbuf clusters allowed");
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@ -245,7 +245,7 @@ sysctl_nmbjumbop(SYSCTL_HANDLER_ARGS)
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return (error);
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}
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SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbop,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, &nmbjumbop, 0,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, &nmbjumbop, 0,
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sysctl_nmbjumbop, "IU",
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"Maximum number of mbuf page size jumbo clusters allowed");
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@ -267,7 +267,7 @@ sysctl_nmbjumbo9(SYSCTL_HANDLER_ARGS)
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return (error);
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}
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SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo9,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, &nmbjumbo9, 0,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, &nmbjumbo9, 0,
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sysctl_nmbjumbo9, "IU",
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"Maximum number of mbuf 9k jumbo clusters allowed");
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@ -289,7 +289,7 @@ sysctl_nmbjumbo16(SYSCTL_HANDLER_ARGS)
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return (error);
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}
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SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo16,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, &nmbjumbo16, 0,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, &nmbjumbo16, 0,
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sysctl_nmbjumbo16, "IU",
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"Maximum number of mbuf 16k jumbo clusters allowed");
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@ -311,7 +311,7 @@ sysctl_nmbufs(SYSCTL_HANDLER_ARGS)
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return (error);
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}
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SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbufs,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
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&nmbufs, 0, sysctl_nmbufs, "IU",
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"Maximum number of mbufs allowed");
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@ -143,7 +143,7 @@ sysctl_stats_reset(SYSCTL_HANDLER_ARGS)
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}
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SYSCTL_PROC(_kern_sched_stats, OID_AUTO, reset,
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CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT, NULL, 0,
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CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_MPSAFE, NULL, 0,
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sysctl_stats_reset, "I",
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"Reset scheduler statistics");
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#endif
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@ -245,7 +245,7 @@ devclass_sysctl_init(devclass_t dc)
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CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "");
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SYSCTL_ADD_PROC(&dc->sysctl_ctx, SYSCTL_CHILDREN(dc->sysctl_tree),
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OID_AUTO, "%parent",
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CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
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CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
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dc, DEVCLASS_SYSCTL_PARENT, devclass_sysctl_handler, "A",
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"parent class");
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}
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@ -50,6 +50,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/protosw.h>
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#include <sys/uio.h>
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#include <sys/vmmeter.h>
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#include <sys/sbuf.h>
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#include <sys/sdt.h>
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#include <vm/vm.h>
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#include <vm/vm_pageout.h>
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@ -2128,16 +2129,6 @@ struct mbufprofile {
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uintmax_t segments[MP_BUCKETS];
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} mbprof;
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#define MP_MAXDIGITS 21 /* strlen("16,000,000,000,000,000,000") == 21 */
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#define MP_NUMLINES 6
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#define MP_NUMSPERLINE 16
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#define MP_EXTRABYTES 64 /* > strlen("used:\nwasted:\nsegments:\n") */
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/* work out max space needed and add a bit of spare space too */
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#define MP_MAXLINE ((MP_MAXDIGITS+1) * MP_NUMSPERLINE)
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#define MP_BUFSIZE ((MP_MAXLINE * MP_NUMLINES) + 1 + MP_EXTRABYTES)
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char mbprofbuf[MP_BUFSIZE];
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void
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m_profile(struct mbuf *m)
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{
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@ -2173,16 +2164,18 @@ m_profile(struct mbuf *m)
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mbprof.wasted[fls(wasted)]++;
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}
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static void
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mbprof_textify(void)
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static int
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mbprof_handler(SYSCTL_HANDLER_ARGS)
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{
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int offset;
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char *c;
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char buf[256];
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struct sbuf sb;
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int error;
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uint64_t *p;
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sbuf_new_for_sysctl(&sb, buf, sizeof(buf), req);
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p = &mbprof.wasted[0];
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c = mbprofbuf;
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offset = snprintf(c, MP_MAXLINE + 10,
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sbuf_printf(&sb,
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"wasted:\n"
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"%ju %ju %ju %ju %ju %ju %ju %ju "
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"%ju %ju %ju %ju %ju %ju %ju %ju\n",
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@ -2190,16 +2183,14 @@ mbprof_textify(void)
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p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
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#ifdef BIG_ARRAY
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p = &mbprof.wasted[16];
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c += offset;
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offset = snprintf(c, MP_MAXLINE,
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sbuf_printf(&sb,
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"%ju %ju %ju %ju %ju %ju %ju %ju "
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"%ju %ju %ju %ju %ju %ju %ju %ju\n",
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
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p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
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#endif
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p = &mbprof.used[0];
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c += offset;
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offset = snprintf(c, MP_MAXLINE + 10,
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sbuf_printf(&sb,
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"used:\n"
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"%ju %ju %ju %ju %ju %ju %ju %ju "
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"%ju %ju %ju %ju %ju %ju %ju %ju\n",
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@ -2207,16 +2198,14 @@ mbprof_textify(void)
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p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
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#ifdef BIG_ARRAY
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p = &mbprof.used[16];
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c += offset;
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offset = snprintf(c, MP_MAXLINE,
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sbuf_printf(&sb,
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"%ju %ju %ju %ju %ju %ju %ju %ju "
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"%ju %ju %ju %ju %ju %ju %ju %ju\n",
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
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p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
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#endif
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p = &mbprof.segments[0];
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c += offset;
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offset = snprintf(c, MP_MAXLINE + 10,
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sbuf_printf(&sb,
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"segments:\n"
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"%ju %ju %ju %ju %ju %ju %ju %ju "
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"%ju %ju %ju %ju %ju %ju %ju %ju\n",
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@ -2224,22 +2213,15 @@ mbprof_textify(void)
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p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
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#ifdef BIG_ARRAY
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p = &mbprof.segments[16];
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c += offset;
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offset = snprintf(c, MP_MAXLINE,
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sbuf_printf(&sb,
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"%ju %ju %ju %ju %ju %ju %ju %ju "
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"%ju %ju %ju %ju %ju %ju %ju %jju",
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
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p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
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#endif
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}
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static int
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mbprof_handler(SYSCTL_HANDLER_ARGS)
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{
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int error;
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mbprof_textify();
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error = SYSCTL_OUT(req, mbprofbuf, strlen(mbprofbuf) + 1);
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error = sbuf_finish(&sb);
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sbuf_delete(&sb);
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return (error);
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}
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@ -2261,12 +2243,12 @@ mbprof_clr_handler(SYSCTL_HANDLER_ARGS)
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}
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SYSCTL_PROC(_kern_ipc, OID_AUTO, mbufprofile,
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CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, NULL, 0,
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CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0,
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mbprof_handler, "A",
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"mbuf profiling statistics");
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SYSCTL_PROC(_kern_ipc, OID_AUTO, mbufprofileclr,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, NULL, 0,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, NULL, 0,
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mbprof_clr_handler, "I",
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"clear mbuf profiling statistics");
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#endif
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