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Commit 94c282d7 authored by Jeff Dike's avatar Jeff Dike Committed by Linus Torvalds
Browse files

[PATCH] uml: locking comments in iomem driver 



Comment some lack of locking in the iomem driver.

Also, a couple of variables are in the wrong place, so they are moved.

Signed-off-by: default avatarJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c6256c68

arch/um/kernel/mem.c

+0 −10
Original line number Diff line number Diff line
@@ -367,16 +367,6 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) 
	return pte;

}



struct iomem_region *iomem_regions = NULL;

int iomem_size = 0;



extern int parse_iomem(char *str, int *add) __init;



__uml_setup("iomem=", parse_iomem,

"iomem=<name>,<file>\n"

"    Configure <file> as an IO memory region named <name>.\n\n"

);



/*

 * Overrides for Emacs so that we follow Linus's tabbing style.

 * Emacs will notice this stuff at the end of the file and automatically

arch/um/kernel/physmem.c

+17 −0
Original line number Diff line number Diff line
@@ -398,6 +398,23 @@ __uml_setup("mem=", uml_mem_setup, 
"	Example: mem=64M\n\n"

);



extern int __init parse_iomem(char *str, int *add);



__uml_setup("iomem=", parse_iomem,

"iomem=<name>,<file>\n"

"    Configure <file> as an IO memory region named <name>.\n\n"

);



/*

 * This list is constructed in parse_iomem and addresses filled in in

 * setup_iomem, both of which run during early boot.  Afterwards, it's

 * unchanged.

 */

struct iomem_region *iomem_regions = NULL;



/* Initialized in parse_iomem */

int iomem_size = 0;



unsigned long find_iomem(char *driver, unsigned long *len_out)

{

	struct iomem_region *region = iomem_regions;