hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 

Pull s390 fixes from Martin Schwidefsky:
 "Two bug fixes

   - a memory alignment fix in the s390 only hypfs code

   - a fix for the generic percpu code that caused ftrace to break on
     s390. This is not relevant for x86 but for all architectures that
     use the generic percpu code"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  percpu: use notrace variant of preempt_disable/preempt_enable
  s390/hypfs: Use get_free_page() instead of kmalloc to ensure page alignment
This commit is contained in:
Linus Torvalds 2016-11-09 11:09:40 -08:00
parent e3a00f68e4 7f8d61f005
commit ae67e87f40
2 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/s390/hypfs/hypfs_diag.c
View File

@ -363,11 +363,11 @@ out:
static int diag224_get_name_table(void)
{
/* memory must be below 2GB */
diag224_cpu_names = kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA);
diag224_cpu_names = (char *) __get_free_page(GFP_KERNEL | GFP_DMA);
if (!diag224_cpu_names)
return -ENOMEM;
if (diag224(diag224_cpu_names)) {
kfree(diag224_cpu_names);
free_page((unsigned long) diag224_cpu_names);
return -EOPNOTSUPP;
}
EBCASC(diag224_cpu_names + 16, (*diag224_cpu_names + 1) * 16);
@ -376,7 +376,7 @@ static int diag224_get_name_table(void)
static void diag224_delete_name_table(void)
{
kfree(diag224_cpu_names);
free_page((unsigned long) diag224_cpu_names);
}
static int diag224_idx2name(int index, char *name)

4
include/asm-generic/percpu.h
View File

@ -118,9 +118,9 @@ do { \
#define this_cpu_generic_read(pcp) \
({ \
typeof(pcp) __ret; \
preempt_disable(); \
preempt_disable_notrace(); \
__ret = raw_cpu_generic_read(pcp); \
preempt_enable(); \
preempt_enable_notrace(); \
__ret; \
})