root@jcmain:~# !1810
grep -inH max_write `locate fuse` 2>/dev/null
/usr/include/fuse/fuse_common.h:105:    unsigned max_write;
/usr/include/linux/fuse.h:363:  __u32   max_write;
.....snip.....
/usr/src/linux-2.6.30-custom/fs/fuse/file.c:786:                bytes = min_t(size_t, bytes, fc->max_write - count);
/usr/src/linux-2.6.30-custom/fs/fuse/file.c:823:        } while (iov_iter_count(ii) && count < fc->max_write &&
/usr/src/linux-2.6.30-custom/fs/fuse/file.c:987:        size_t nmax = write ? fc->max_write : fc->max_read;
/usr/src/linux-2.6.30-custom/fs/fuse/fuse_i.h:322:      unsigned max_write;
/usr/src/linux-2.6.30-custom/fs/fuse/inode.c:763:               fc->max_write = arg->minor < 5 ? 4096 : arg->max_write;
/usr/src/linux-2.6.30-custom/fs/fuse/inode.c:764:               fc->max_write = max_t(unsigned, 4096, fc->max_write);
/usr/src/linux-2.6.30-custom/include/linux/fuse.h:401:  __u32   max_write;
.....snip.....
root@jcmain:~# uname -a
Linux jcmain 2.6.30-custom #1 SMP Fri Jun 12 22:15:25 BST 2009 i686 GNU/Linux

##</code><code>##

jc@jcmain:~/steg$ sudo perl fs_simple.pl 
unique: 1, opcode: INIT (26), nodeid: 0, insize: 56
INIT: 7.11
flags=0x0000003b
max_readahead=0x00020000
   INIT: 7.8
   flags=0x00000000
   max_readahead=0x00020000
   max_write=0x00020000
   unique: 1, error: 0 (Success), outsize: 40

##</code><code>##

jc@jcmain:~$ perl -e "print int 0x00020000;"
131072

##</code><code>##

jc@jcmain:/usr/lib/perl5$ grep 4096 Fuse.pm 
jc@jcmain:/usr/lib/perl5$ 
<snip>
jc@jcmain:/usr/local/share/perl/5.10.0/Fuse$ grep 4096 Simple.pm 
jc@jcmain:/usr/local/share/perl/5.10.0/Fuse$