{pts/1}% rpm -q fileutils
fileutils-4.1.5-1mdk
df -x supermount still stats all mount points every time.
execve("/bin/df", ["df", "-k", "-x", "supermount"], [/* 32 vars */]) = 0
...
open("/proc/mounts", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x40193000
read(3, "/dev/root / reiserfs rw 0 0\n/dev"..., 4096) = 483
stat64("/", {st_mode=S_IFDIR|0755, st_size=544, ...}) = 0
stat64("/dev", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
close(3) = 0
...
open("/proc/mounts", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x40193000
read(3, "/dev/root / reiserfs rw 0 0\n/dev"..., 4096) = 434
stat64("/", {st_mode=S_IFDIR|0755, st_size=544, ...}) = 0
stat64("/dev", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
stat64("/proc", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
stat64("/dev/pts", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
stat64("/dev/shm", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=0, ...}) = 0
stat64("/mnt/cdrom", {st_mode=S_IFDIR|0777, st_size=0, ...}) = 0
stat64("/mnt/floppy", {st_mode=S_IFDIR|0777, st_size=0, ...}) = 0
stat64("/mnt/hd", {st_mode=S_IFDIR|0777, st_size=0, ...}) = 0
stat64("/mnt/win_c", {st_mode=S_IFDIR|0777, st_size=22016, ...}) = 0
stat64("/mnt/win_d", {st_mode=S_IFDIR|0777, st_size=16384, ...}) = 0
stat64("/mnt/hdb7", {st_mode=S_IFDIR|0755, st_size=432, ...}) = 0
stat64("/proc/bus/usb", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
stat64("/proc/sys/fs/binfmt_misc", {st_mode=S_IFDIR|0755, st_size=0,
...}) = 0
close(3) = 0
...
-andrej
