Reinette Chatre 01a3ee2b20 [PATCH] bitmap: parse input from kernel and user buffers ... lib/bitmap.c:bitmap_parse() is a library function that received as input a user buffer. This seemed to have originated from the way the write_proc function of the /proc filesystem operates. This has been reworked to not use kmalloc and eliminates a lot of get_user() overhead by performing one access_ok before using __get_user(). We need to test if we are in kernel or user space (is_user) and access the buffer differently. We cannot use __get_user() to access kernel addresses in all cases, for example in architectures with separate address space for kernel and user. This function will be useful for other uses as well; for example, taking input for /sysfs instead of /proc, so it was changed to accept kernel buffers. We have this use for the Linux UWB project, as part as the upcoming bandwidth allocator code. Only a few routines used this function and they were changed too. Signed-off-by: Reinette Chatre <reinette.chatre@linux.intel.com> Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Cc: Paul Jackson <pj@sgi.com> Cc: Joe Korty <joe.korty@ccur.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-10-11 11:14:22 -07:00
..
autoprobe.c	[PATCH] genirq: add handle_bad_irq()	2006-06-29 10:26:24 -07:00
chip.c	IRQ: Maintain regs pointer globally rather than passing to IRQ handlers	2006-10-05 15:10:12 +01:00
handle.c	IRQ: Maintain regs pointer globally rather than passing to IRQ handlers	2006-10-05 15:10:12 +01:00
internals.h	[PATCH] genirq: more verbose debugging on unexpected IRQ vectors	2006-06-29 10:26:25 -07:00
Makefile	[PATCH] genirq: add irq-chip support	2006-06-29 10:26:24 -07:00
manage.c	IRQ: Typedef the IRQ handler function type	2006-10-05 13:28:27 +01:00
migration.c	[PATCH] genirq: irq: add moved_masked_irq	2006-10-04 07:55:26 -07:00
proc.c	[PATCH] bitmap: parse input from kernel and user buffers	2006-10-11 11:14:22 -07:00
resend.c	[PATCH] ixp4xxdefconfig arm fixes	2006-10-06 12:11:08 -07:00
spurious.c	IRQ: Maintain regs pointer globally rather than passing to IRQ handlers	2006-10-05 15:10:12 +01:00