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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-15 18:59:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-15 18:59:56 -0700 |
| commit | da849abeb86ddaa093b0935fde595e8e4dd21ffc (patch) | |
| tree | f985f6b1858f3abce274f267bfde051810215ed0 /arch/x86/kernel/ioport.c | |
| parent | 21a32816b2e13eafb6d8a4589a84c6e629adc392 (diff) | |
| parent | 371c394af27ab7d1e58a66bc19d9f1f3ac1f67b4 (diff) | |
| download | kernel_samsung_espresso10-da849abeb86ddaa093b0935fde595e8e4dd21ffc.zip kernel_samsung_espresso10-da849abeb86ddaa093b0935fde595e8e4dd21ffc.tar.gz kernel_samsung_espresso10-da849abeb86ddaa093b0935fde595e8e4dd21ffc.tar.bz2 | |
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, binutils, xen: Fix another wrong size directive
x86: Remove dead config option X86_CPU
x86: Really print supported CPUs if PROCESSOR_SELECT=y
x86: Fix a bogus unwind annotation in lib/semaphore_32.S
um, x86-64: Fix UML build after adding CFI annotations to lib/rwsem_64.S
x86: Remove unused bits from lib/thunk_*.S
x86: Use {push,pop}_cfi in more places
x86-64: Add CFI annotations to lib/rwsem_64.S
x86, asm: Cleanup unnecssary macros in asm-offsets.c
x86, system.h: Drop unused __SAVE/__RESTORE macros
x86: Use bitmap library functions
x86: Partly unify asm-offsets_{32,64}.c
x86: Reduce back the alignment of the per-CPU data section
Diffstat (limited to 'arch/x86/kernel/ioport.c')
| -rw-r--r-- | arch/x86/kernel/ioport.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c index 8eec0ec..8c96897 100644 --- a/arch/x86/kernel/ioport.c +++ b/arch/x86/kernel/ioport.c @@ -14,22 +14,9 @@ #include <linux/slab.h> #include <linux/thread_info.h> #include <linux/syscalls.h> +#include <linux/bitmap.h> #include <asm/syscalls.h> -/* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */ -static void set_bitmap(unsigned long *bitmap, unsigned int base, - unsigned int extent, int new_value) -{ - unsigned int i; - - for (i = base; i < base + extent; i++) { - if (new_value) - __set_bit(i, bitmap); - else - __clear_bit(i, bitmap); - } -} - /* * this changes the io permissions bitmap in the current task. */ @@ -69,7 +56,10 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) */ tss = &per_cpu(init_tss, get_cpu()); - set_bitmap(t->io_bitmap_ptr, from, num, !turn_on); + if (turn_on) + bitmap_clear(t->io_bitmap_ptr, from, num); + else + bitmap_set(t->io_bitmap_ptr, from, num); /* * Search for a (possibly new) maximum. This is simple and stupid, |