X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;ds=sidebyside;f=libcfs%2Flibcfs%2Flinux%2Flinux-proc.c;h=e82b67584597e2320f53d7a6ad5b3926667a0351;hb=617e8e1229637908d4cce6725878dd5668960420;hp=c6c81e41a33d24bdc0fccc082d59291c15880fa8;hpb=19ec037c0a9427250b87a69c53beb153d533ab1c;p=fs%2Flustre-release.git

diff --git a/libcfs/libcfs/linux/linux-proc.c b/libcfs/libcfs/linux/linux-proc.c
index c6c81e4..e82b675 100644
--- a/libcfs/libcfs/linux/linux-proc.c
+++ b/libcfs/libcfs/linux/linux-proc.c
@@ -97,6 +97,7 @@ enum {
         PSDEV_CONSOLE_BACKOFF,    /* delay increase factor */
         PSDEV_DEBUG_PATH,         /* crashdump log location */
         PSDEV_DEBUG_DUMP_PATH,    /* crashdump tracelog location */
+	PSDEV_CPT_TABLE,	  /* information about cpu partitions */
         PSDEV_LNET_UPCALL,        /* User mode upcall script  */
         PSDEV_LNET_MEMUSED,       /* bytes currently PORTAL_ALLOCated */
         PSDEV_LNET_CATASTROPHE,   /* if we have LBUGged or panic'd */
@@ -121,6 +122,7 @@ enum {
 #define PSDEV_CONSOLE_BACKOFF           CTL_UNNUMBERED
 #define PSDEV_DEBUG_PATH                CTL_UNNUMBERED
 #define PSDEV_DEBUG_DUMP_PATH           CTL_UNNUMBERED
+#define PSDEV_CPT_TABLE			CTL_UNNUMBERED
 #define PSDEV_LNET_UPCALL               CTL_UNNUMBERED
 #define PSDEV_LNET_MEMUSED              CTL_UNNUMBERED
 #define PSDEV_LNET_CATASTROPHE          CTL_UNNUMBERED
@@ -356,6 +358,48 @@ int LL_PROC_PROTO(proc_fail_loc)
         return rc;
 }
 
+static int __proc_cpt_table(void *data, int write,
+			    loff_t pos, void *buffer, int nob)
+{
+	char *buf = NULL;
+	int   len = 4096;
+	int   rc  = 0;
+
+	if (write)
+		return -EPERM;
+
+	LASSERT(cfs_cpt_table != NULL);
+
+	while (1) {
+		LIBCFS_ALLOC(buf, len);
+		if (buf == NULL)
+			return -ENOMEM;
+
+		rc = cfs_cpt_table_print(cfs_cpt_table, buf, len);
+		if (rc >= 0)
+			break;
+
+		LIBCFS_FREE(buf, len);
+		if (rc == -EFBIG) {
+			len <<= 1;
+			continue;
+		}
+		goto out;
+	}
+
+	if (pos >= rc) {
+		rc = 0;
+		goto out;
+	}
+
+	rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
+ out:
+	if (buf != NULL)
+		LIBCFS_FREE(buf, len);
+	return rc;
+}
+DECLARE_PROC_HANDLER(proc_cpt_table)
+
 static cfs_sysctl_table_t lnet_table[] = {
         /*
          * NB No .strategy entries have been provided since sysctl(8) prefers
@@ -424,6 +468,14 @@ static cfs_sysctl_table_t lnet_table[] = {
                 .proc_handler = &proc_dostring,
         },
 
+	{
+		.ctl_name = PSDEV_CPT_TABLE,
+		.procname = "cpu_partition_table",
+		.maxlen   = 128,
+		.mode     = 0444,
+		.proc_handler = &proc_cpt_table,
+	},
+
         {
                 INIT_CTL_NAME(PSDEV_LNET_UPCALL)
                 .procname = "upcall",