void-packages/srcpkgs/procps/patches/vmstat_part_format.patch

78 lines
2.5 KiB
Diff

Author: Daniel Novotny
Description: The contents of /proc/diskstats have changed since 2.6.25
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=485243
--- a/proc/sysinfo.c
+++ b/proc/sysinfo.c
@@ -796,6 +796,18 @@
}
/////////////////////////////////////////////////////////////////////////////
+static int is_disk(char *dev)
+{
+ char syspath[PATH_MAX];
+ char *slash;
+
+ while ((slash = strchr(dev, '/')))
+ *slash = '!';
+ snprintf(syspath, sizeof(syspath), "/sys/block/%s", dev);
+ return !(access(syspath, F_OK));
+}
+
+/////////////////////////////////////////////////////////////////////////////
unsigned int getdiskstat(struct disk_stat **disks, struct partition_stat **partitions){
FILE* fd;
@@ -803,6 +815,7 @@
int cPartition = 0;
int fields;
unsigned dummy;
+ char devname[PATH_MAX];
*disks = NULL;
*partitions = NULL;
@@ -815,8 +828,9 @@
fclose(fd);
break;
}
- fields = sscanf(buff, " %*d %*d %*s %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %u", &dummy);
- if (fields == 1){
+ fields = sscanf(buff, " %*d %*d %15s %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %u",
+ &devname, &dummy);
+ if (fields == 2 && is_disk(devname)){
(*disks) = realloc(*disks, (cDisk+1)*sizeof(struct disk_stat));
sscanf(buff, " %*d %*d %15s %u %u %llu %u %u %u %llu %u %u %u %u",
//&disk_major,
@@ -839,7 +853,9 @@
}else{
(*partitions) = realloc(*partitions, (cPartition+1)*sizeof(struct partition_stat));
fflush(stdout);
- sscanf(buff, " %*d %*d %15s %u %llu %u %u",
+ sscanf(buff, (fields == 2)
+ ? " %*d %*d %15s %u %*u %llu %*u %u %*u %llu %*u %*u %*u %*u"
+ : " %*d %*d %15s %u %llu %u %llu",
//&part_major,
//&part_minor,
(*partitions)[cPartition].partition_name,
--- a/proc/sysinfo.h
+++ b/proc/sysinfo.h
@@ -113,7 +113,7 @@
unsigned parent_disk; // index into a struct disk_stat array
unsigned reads;
unsigned writes;
- unsigned requested_writes;
+ unsigned long long requested_writes;
}partition_stat;
extern unsigned int getpartitions_num(struct disk_stat *disks, int ndisks);
--- a/vmstat.c
+++ b/vmstat.c
@@ -286,7 +286,7 @@
struct disk_stat *disks;
struct partition_stat *partitions, *current_partition=NULL;
unsigned long ndisks, j, k, npartitions;
- const char format[] = "%20u %10llu %10u %10u\n";
+ const char format[] = "%20u %10llu %10u %10llu\n";
fDiskstat=fopen("/proc/diskstats","rb");
if(!fDiskstat){