Re: [PATCH] Migrating storeio from trivfs to netfs.

[Samuel Thibault]

Hello,

Since this patch, /dev/zero can't be mmap-ed... See attached testcase.
This is making apache fail to start on darnassus.

And indeed, trivfs_S_io_map has disappeared, but netfs_S_io_map was not
introduced.

Also, ls -l /dev/zero returns 

ls: reading directory '/dev/zero': Not a directory

I guess it should be fixed into not showing the directory type when
there is not partition table.

Samuel

#include <sys/mman.h>
#include <fcntl.h>
#include <stdio.h>
#include <error.h>
#include <errno.h>

int main(void) {
	int fd = open("/dev/zero", O_RDONLY);
	char *c = mmap(NULL, 4096*16, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
	if (c == MAP_FAILED)
		error(1, errno, "mmap");
	printf("%p\n", c);
	return 0;
}