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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-31 18:52:46 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-31 18:52:46 -0500
commite81cfd214f97a26ca2b00564258ebcf099214cbb (patch)
treea59043fc9aeb41564f36533e7dc0b507f6261a37 /drivers
parent4b8d8ab566932bfe023637025c76c0e90c655faf (diff)
parent7fc49f19813030f2e15ad2ccec5cb701f7f4a3ec (diff)
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86 setup: fix asm constraints in vesa_store_edid xen: make sysfs files behave as their names suggest x86: tone down mtrr_trim_uncached_memory() warning x86: correct the CPUID pattern for MSR_IA32_MISC_ENABLE availability
Diffstat (limited to 'drivers')
-rw-r--r--drivers/xen/balloon.c33
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 2ba8f95516a0..efa4b363ce72 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -498,7 +498,7 @@ static ssize_t store_target_kb(struct sys_device *dev,
498 if (!capable(CAP_SYS_ADMIN)) 498 if (!capable(CAP_SYS_ADMIN))
499 return -EPERM; 499 return -EPERM;
500 500
501 target_bytes = memparse(buf, &endchar); 501 target_bytes = simple_strtoull(buf, &endchar, 0) * 1024;
502 502
503 balloon_set_new_target(target_bytes >> PAGE_SHIFT); 503 balloon_set_new_target(target_bytes >> PAGE_SHIFT);
504 504
@@ -508,8 +508,39 @@ static ssize_t store_target_kb(struct sys_device *dev,
508static SYSDEV_ATTR(target_kb, S_IRUGO | S_IWUSR, 508static SYSDEV_ATTR(target_kb, S_IRUGO | S_IWUSR,
509 show_target_kb, store_target_kb); 509 show_target_kb, store_target_kb);
510 510
511
512static ssize_t show_target(struct sys_device *dev, struct sysdev_attribute *attr,
513 char *buf)
514{
515 return sprintf(buf, "%llu\n",
516 (u64)balloon_stats.target_pages << PAGE_SHIFT);
517}
518
519static ssize_t store_target(struct sys_device *dev,
520 struct sysdev_attribute *attr,
521 const char *buf,
522 size_t count)
523{
524 char *endchar;
525 unsigned long long target_bytes;
526
527 if (!capable(CAP_SYS_ADMIN))
528 return -EPERM;
529
530 target_bytes = memparse(buf, &endchar);
531
532 balloon_set_new_target(target_bytes >> PAGE_SHIFT);
533
534 return count;
535}
536
537static SYSDEV_ATTR(target, S_IRUGO | S_IWUSR,
538 show_target, store_target);
539
540
511static struct sysdev_attribute *balloon_attrs[] = { 541static struct sysdev_attribute *balloon_attrs[] = {
512 &attr_target_kb, 542 &attr_target_kb,
543 &attr_target,
513}; 544};
514 545
515static struct attribute *balloon_info_attrs[] = { 546static struct attribute *balloon_info_attrs[] = {