diff options
Diffstat (limited to 'raid6.c')
| -rw-r--r-- | raid6.c | 16 |
1 files changed, 12 insertions, 4 deletions
@@ -11,6 +11,10 @@ * ----------------------------------------------------------------------- */ /* + * Added helpers for unaligned native int access + */ + +/* * raid6int1.c * * 1-way unrolled portable integer math RAID-6 instruction set @@ -33,11 +37,15 @@ # define NSIZE 8 # define NSHIFT 3 typedef uint64_t unative_t; +#define put_unaligned_native(val,p) put_unaligned_64((val),(p)) +#define get_unaligned_native(p) get_unaligned_64((p)) #else # define NBYTES(x) ((x) * 0x01010101U) # define NSIZE 4 # define NSHIFT 2 typedef uint32_t unative_t; +#define put_unaligned_native(val,p) put_unaligned_32((val),(p)) +#define get_unaligned_native(p) get_unaligned_32((p)) #endif /* @@ -84,9 +92,9 @@ void raid6_gen_syndrome(int disks, size_t bytes, void **ptrs) q = dptr[z0+2]; /* RS syndrome */ for ( d = 0 ; d < bytes ; d += NSIZE*1 ) { - wq0 = wp0 = *(unative_t *)&dptr[z0][d+0*NSIZE]; + wq0 = wp0 = get_unaligned_native(&dptr[z0][d+0*NSIZE]); for ( z = z0-1 ; z >= 0 ; z-- ) { - wd0 = *(unative_t *)&dptr[z][d+0*NSIZE]; + wd0 = get_unaligned_native(&dptr[z][d+0*NSIZE]); wp0 ^= wd0; w20 = MASK(wq0); w10 = SHLBYTE(wq0); @@ -94,8 +102,8 @@ void raid6_gen_syndrome(int disks, size_t bytes, void **ptrs) w10 ^= w20; wq0 = w10 ^ wd0; } - *(unative_t *)&p[d+NSIZE*0] = wp0; - *(unative_t *)&q[d+NSIZE*0] = wq0; + put_unaligned_native(wp0, &p[d+NSIZE*0]); + put_unaligned_native(wq0, &q[d+NSIZE*0]); } } |