UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

sh: Consolidate slab/kmalloc minalign values. 

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2007-11-10 19:57:58 +09:00
parent 9b01bd9ee6
commit 01fed9311a
2 changed files with 14 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
include/asm-sh/page.h
View File

@ -157,8 +157,22 @@ typedef struct { unsigned long pgd; } pgd_t;
* Slub defaults to 8-byte alignment, we're only interested in 4. * Slub defaults to 8-byte alignment, we're only interested in 4.
* Slab defaults to BYTES_PER_WORD, which ends up being the same anyways. * Slab defaults to BYTES_PER_WORD, which ends up being the same anyways.
*/ */
#ifdef CONFIG_SUPERH32
#define ARCH_KMALLOC_MINALIGN 4 #define ARCH_KMALLOC_MINALIGN 4
#define ARCH_SLAB_MINALIGN 4 #define ARCH_SLAB_MINALIGN 4
#else
/* If gcc inlines memset, it will use st.q instructions. Therefore, we need
kmalloc allocations to be 8-byte aligned. Without this, the alignment
becomes BYTE_PER_WORD i.e. only 4 (since sizeof(long)==sizeof(void*)==4 on
sh64 at the moment). */
#define ARCH_KMALLOC_MINALIGN 8
/*
* We want 8-byte alignment for the slab caches as well, otherwise we have
* the same BYTES_PER_WORD (sizeof(void *)) min align in kmem_cache_create().
*/
#define ARCH_SLAB_MINALIGN 8
#endif
#endif /* __KERNEL__ */ #endif /* __KERNEL__ */
#endif /* __ASM_SH_PAGE_H */ #endif /* __ASM_SH_PAGE_H */

12
include/asm-sh/uaccess_64.h
View File

@ -297,18 +297,6 @@ struct exception_table_entry
#define ARCH_HAS_SEARCH_EXTABLE #define ARCH_HAS_SEARCH_EXTABLE
/* If gcc inlines memset, it will use st.q instructions. Therefore, we need
kmalloc allocations to be 8-byte aligned. Without this, the alignment
becomes BYTE_PER_WORD i.e. only 4 (since sizeof(long)==sizeof(void*)==4 on
sh64 at the moment). */
#define ARCH_KMALLOC_MINALIGN 8
/*
* We want 8-byte alignment for the slab caches as well, otherwise we have
* the same BYTES_PER_WORD (sizeof(void *)) min align in kmem_cache_create().
*/
#define ARCH_SLAB_MINALIGN 8
/* Returns 0 if exception not found and fixup.unit otherwise. */ /* Returns 0 if exception not found and fixup.unit otherwise. */
extern unsigned long search_exception_table(unsigned long addr); extern unsigned long search_exception_table(unsigned long addr);
extern const struct exception_table_entry *search_exception_tables (unsigned long addr); extern const struct exception_table_entry *search_exception_tables (unsigned long addr);