svn commit: r353112 - head/sys/kern

[Eric van Gyzen]

Author: vangyzen
Date: Fri Oct  4 21:43:43 2019
New Revision: 353112
URL: https://svnweb.freebsd.org/changeset/base/353112

Log:
  Add CTLFLAG_STATS to some vfs sysctl OIDs
  
  Add CTLFLAG_STATS to the following OIDs:
  
  vfs.altbufferflushes
  vfs.recursiveflushes
  vfs.barrierwrites
  vfs.flushwithdeps
  vfs.reassignbufcalls
  
  Refer to r353111.
  
  MFC after:    2 weeks
  Sponsored by: Dell EMC Isilon

Modified:
  head/sys/kern/vfs_bio.c
  head/sys/kern/vfs_subr.c

Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c     Fri Oct  4 21:39:11 2019        (r353111)
+++ head/sys/kern/vfs_bio.c     Fri Oct  4 21:43:43 2019        (r353112)
@@ -250,11 +250,11 @@ int bdwriteskip;
 SYSCTL_INT(_vfs, OID_AUTO, bdwriteskip, CTLFLAG_RW, &bdwriteskip,
     0, "Number of buffers supplied to bdwrite with snapshot deadlock risk");
 int altbufferflushes;
-SYSCTL_INT(_vfs, OID_AUTO, altbufferflushes, CTLFLAG_RW, &altbufferflushes,
-    0, "Number of fsync flushes to limit dirty buffers");
+SYSCTL_INT(_vfs, OID_AUTO, altbufferflushes, CTLFLAG_RW | CTLFLAG_STATS,
+    &altbufferflushes, 0, "Number of fsync flushes to limit dirty buffers");
 static int recursiveflushes;
-SYSCTL_INT(_vfs, OID_AUTO, recursiveflushes, CTLFLAG_RW, &recursiveflushes,
-    0, "Number of flushes skipped due to being recursive");
+SYSCTL_INT(_vfs, OID_AUTO, recursiveflushes, CTLFLAG_RW | CTLFLAG_STATS,
+    &recursiveflushes, 0, "Number of flushes skipped due to being recursive");
 static int sysctl_numdirtybuffers(SYSCTL_HANDLER_ARGS);
 SYSCTL_PROC(_vfs, OID_AUTO, numdirtybuffers,
     CTLTYPE_INT|CTLFLAG_MPSAFE|CTLFLAG_RD, NULL, 0, sysctl_numdirtybuffers, 
"I",
@@ -309,8 +309,8 @@ static counter_u64_t notbufdflushes;
 SYSCTL_COUNTER_U64(_vfs, OID_AUTO, notbufdflushes, CTLFLAG_RD, &notbufdflushes,
     "Number of dirty buffer flushes done by the bufdaemon helpers");
 static long barrierwrites;
-SYSCTL_LONG(_vfs, OID_AUTO, barrierwrites, CTLFLAG_RW, &barrierwrites, 0,
-    "Number of barrier writes");
+SYSCTL_LONG(_vfs, OID_AUTO, barrierwrites, CTLFLAG_RW | CTLFLAG_STATS,
+    &barrierwrites, 0, "Number of barrier writes");
 SYSCTL_INT(_vfs, OID_AUTO, unmapped_buf_allowed, CTLFLAG_RD,
     &unmapped_buf_allowed, 0,
     "Permit the use of the unmapped i/o");
@@ -3423,8 +3423,9 @@ buf_daemon()
  *     particularly sensitive to.
  */
 static int flushwithdeps = 0;
-SYSCTL_INT(_vfs, OID_AUTO, flushwithdeps, CTLFLAG_RW, &flushwithdeps,
-    0, "Number of buffers flushed with dependecies that require rollbacks");
+SYSCTL_INT(_vfs, OID_AUTO, flushwithdeps, CTLFLAG_RW | CTLFLAG_STATS,
+    &flushwithdeps, 0,
+    "Number of buffers flushed with dependecies that require rollbacks");
 
 static int
 flushbufqueues(struct vnode *lvp, struct bufdomain *bd, int target,

Modified: head/sys/kern/vfs_subr.c
==============================================================================
--- head/sys/kern/vfs_subr.c    Fri Oct  4 21:39:11 2019        (r353111)
+++ head/sys/kern/vfs_subr.c    Fri Oct  4 21:43:43 2019        (r353112)
@@ -210,8 +210,8 @@ SYSCTL_COUNTER_U64(_vfs, OID_AUTO, recycles, CTLFLAG_R
  * XXX these are probably of (very) limited utility now.
  */
 static int reassignbufcalls;
-SYSCTL_INT(_vfs, OID_AUTO, reassignbufcalls, CTLFLAG_RW, &reassignbufcalls, 0,
-    "Number of calls to reassignbuf");
+SYSCTL_INT(_vfs, OID_AUTO, reassignbufcalls, CTLFLAG_RW | CTLFLAG_STATS,
+    &reassignbufcalls, 0, "Number of calls to reassignbuf");
 
 static counter_u64_t free_owe_inact;
 SYSCTL_COUNTER_U64(_vfs, OID_AUTO, free_owe_inact, CTLFLAG_RD, &free_owe_inact,
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