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[PATCH] uml: Remove ubd-mmap support

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Finally rip out the ubd-mmap code, which turned out to be broken by design.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike
2005-05-20 13:59:11 -07:00
committed by Linus Torvalds
parent 9b67a3c4cd
commit 7b9014c1da
2 changed files with 3 additions and 322 deletions
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29
arch/um/kernel/trap_kern.c
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@@ -107,33 +107,6 @@ out_of_memory:
goto out;
}
LIST_HEAD(physmem_remappers);
void register_remapper(struct remapper *info)
{
list_add(&info->list, &physmem_remappers);
}
static int check_remapped_addr(unsigned long address, int is_write)
{
struct remapper *remapper;
struct list_head *ele;
__u64 offset;
int fd;
fd = phys_mapping(__pa(address), &offset);
if(fd == -1)
return(0);
list_for_each(ele, &physmem_remappers){
remapper = list_entry(ele, struct remapper, list);
if((*remapper->proc)(fd, address, is_write, offset))
return(1);
}
return(0);
}
/*
* We give a *copy* of the faultinfo in the regs to segv.
* This must be done, since nesting SEGVs could overwrite
@@ -152,8 +125,6 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, void *sc)
flush_tlb_kernel_vm();
return(0);
}
else if(check_remapped_addr(address & PAGE_MASK, is_write))
return(0);
else if(current->mm == NULL)
panic("Segfault with no mm");
err = handle_page_fault(address, ip, is_write, is_user, &si.si_code);