leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

s390/mm: implement set_memory_4k()

Browse Source 
Implement set_memory_4k() which will split any present large or huge
mapping in the given range to a 4k mapping.

Link: https://lore.kernel.org/r/20210728190254.3921642-2-hca@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Heiko Carstens
2021-07-28 21:02:51 +02:00
parent 00e67bf030
commit b3e1a00c8f
2 changed files with 18 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/s390/include/asm/set_memory.h
View File

@@ -10,6 +10,7 @@ extern struct mutex cpa_mutex;
#define SET_MEMORY_RW 2UL
#define SET_MEMORY_NX 4UL
#define SET_MEMORY_X 8UL
#define SET_MEMORY_4K 16UL
int __set_memory(unsigned long addr, int numpages, unsigned long flags);
@@ -33,4 +34,9 @@ static inline int set_memory_x(unsigned long addr, int numpages)
return __set_memory(addr, numpages, SET_MEMORY_X);
}
static inline int set_memory_4k(unsigned long addr, int numpages)
{
return __set_memory(addr, numpages, SET_MEMORY_4K);
}
#endif