[Linux-cachefs] vanilla-sources CacheFS & UnionFS

[Andreas Bandner]

hi,

I'm working on a Gentoo diskless system 
CacheFS & UninonFS should be used to spread the system to the clients

CacheFS works fine under Gentoo with the mm-sources.

When trying to patch vanilla-sources (2.6.19-rc6) with 
http://people.redhat.com/~dhowells/fscache/patches/nfs+fscache-19.tar.bz2
then compilation is fine, but i can't bind the cache.

Error is Unable to open /proc/fs/cachefiles: errno 2 (No such file or 
directory)

some ideas ? 
strace follows 

Is someone working on the same ?
I just created a GentooWiki for CacheFS
http://gentoo-wiki.com/HOWTO_CacheFS

thanks

Andy

strace cachefilesd -s
execve("/sbin/cachefilesd", ["cachefilesd", "-s"], [/* 45 vars */]) = 0
brk(0)                                  = 0x8056000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or 
directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=73935, ...}) = 0
mmap2(NULL, 73935, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f2e000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300Y\1"..., 512) = 
512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1197180, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 
0xb7f2d000
mmap2(NULL, 1168764, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 
0xb7e0f000
mmap2(0xb7f26000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|
MAP_DENYWRITE, 3, 0x116) = 0xb7f26000
mmap2(0xb7f2a000, 9596, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|
MAP_ANONYMOUS, -1, 0) = 0xb7f2a000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 
0xb7e0e000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7e0e6b0, limit:1048575, 
seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, 
seg_not_present:0, useable:1}) = 0
mprotect(0xb7f26000, 8192, PROT_READ)   = 0
mprotect(0xb7f5c000, 4096, PROT_READ)   = 0
munmap(0xb7f2e000, 73935)               = 0
getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
setresuid32(0, 0, 0)                    = 0
setresgid32(0, 0, 0)                    = 0
sync()                                  = 0
open("/proc/fs/cachefiles", O_RDWR)     = -1 ENOENT (No such file or 
directory)
write(2, "Unable to open /proc/fs/cachefil"..., 72Unable to 
open /proc/fs/cachefiles: errno 2 (No such file or directory)
) = 72
exit_group(1)                           = ?
Process 4284 detached