Messages in this thread Patch in this message | | | From | Martin Schwidefsky <> | Subject | [PATCH] 2.5.40 s390 (10/27): bitops bug. | Date | Fri, 4 Oct 2002 16:28:36 +0200 |
| |
Fix broken bitops for unaligned atomic operations on s390.
diff -urN linux-2.5.40/include/asm-s390/bitops.h linux-2.5.40-s390/include/asm-s390/bitops.h --- linux-2.5.40/include/asm-s390/bitops.h Tue Oct 1 09:06:13 2002 +++ linux-2.5.40-s390/include/asm-s390/bitops.h Fri Oct 4 16:15:28 2002 @@ -59,8 +59,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 3; /* align address to 4 */ nr += (addr & 3) << 3; /* add alignment to bit number */ + addr ^= addr & 3; /* align address to 4 */ #endif addr += (nr ^ (nr & 31)) >> 3; /* calculate address for CS */ mask = 1UL << (nr & 31); /* make OR mask */ @@ -84,8 +84,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 3; /* align address to 4 */ nr += (addr & 3) << 3; /* add alignment to bit number */ + addr ^= addr & 3; /* align address to 4 */ #endif addr += (nr ^ (nr & 31)) >> 3; /* calculate address for CS */ mask = ~(1UL << (nr & 31)); /* make AND mask */ @@ -109,8 +109,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 3; /* align address to 4 */ nr += (addr & 3) << 3; /* add alignment to bit number */ + addr ^= addr & 3; /* align address to 4 */ #endif addr += (nr ^ (nr & 31)) >> 3; /* calculate address for CS */ mask = 1UL << (nr & 31); /* make XOR mask */ @@ -160,8 +160,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 3; /* align address to 4 */ nr += (addr & 3) << 3; /* add alignment to bit number */ + addr ^= addr & 3; /* align address to 4 */ #endif addr += (nr ^ (nr & 31)) >> 3; /* calculate address for CS */ mask = ~(1UL << (nr & 31)); /* make AND mask */ @@ -186,8 +186,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 3; /* align address to 4 */ nr += (addr & 3) << 3; /* add alignment to bit number */ + addr ^= addr & 3; /* align address to 4 */ #endif addr += (nr ^ (nr & 31)) >> 3; /* calculate address for CS */ mask = 1UL << (nr & 31); /* make XOR mask */ diff -urN linux-2.5.40/include/asm-s390x/bitops.h linux-2.5.40-s390/include/asm-s390x/bitops.h --- linux-2.5.40/include/asm-s390x/bitops.h Fri Oct 4 16:14:46 2002 +++ linux-2.5.40-s390/include/asm-s390x/bitops.h Fri Oct 4 16:15:28 2002 @@ -63,8 +63,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 7; /* align address to 8 */ nr += (addr & 7) << 3; /* add alignment to bit number */ + addr ^= addr & 7; /* align address to 8 */ #endif addr += (nr ^ (nr & 63)) >> 3; /* calculate address for CS */ mask = 1UL << (nr & 63); /* make OR mask */ @@ -88,8 +88,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 7; /* align address to 8 */ nr += (addr & 7) << 3; /* add alignment to bit number */ + addr ^= addr & 7; /* align address to 8 */ #endif addr += (nr ^ (nr & 63)) >> 3; /* calculate address for CS */ mask = ~(1UL << (nr & 63)); /* make AND mask */ @@ -113,8 +113,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 7; /* align address to 8 */ nr += (addr & 7) << 3; /* add alignment to bit number */ + addr ^= addr & 7; /* align address to 8 */ #endif addr += (nr ^ (nr & 63)) >> 3; /* calculate address for CS */ mask = 1UL << (nr & 63); /* make XOR mask */ @@ -139,8 +139,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 7; /* align address to 8 */ nr += (addr & 7) << 3; /* add alignment to bit number */ + addr ^= addr & 7; /* align address to 8 */ #endif addr += (nr ^ (nr & 63)) >> 3; /* calculate address for CS */ mask = 1UL << (nr & 63); /* make OR/test mask */ @@ -166,8 +166,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 7; /* align address to 8 */ nr += (addr & 7) << 3; /* add alignment to bit number */ + addr ^= addr & 7; /* align address to 8 */ #endif addr += (nr ^ (nr & 63)) >> 3; /* calculate address for CS */ mask = ~(1UL << (nr & 63)); /* make AND mask */ @@ -193,8 +193,8 @@ addr = (unsigned long) ptr; #if ALIGN_CS == 1 - addr ^= addr & 7; /* align address to 8 */ nr += (addr & 7) << 3; /* add alignment to bit number */ + addr ^= addr & 7; /* align address to 8 */ #endif addr += (nr ^ (nr & 63)) >> 3; /* calculate address for CS */ mask = 1UL << (nr & 63); /* make XOR mask */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |