From mboxrd@z Thu Jan 1 00:00:00 1970 From: mita@miraclelinux.com (Akinobu Mita) Date: Thu, 26 Jan 2006 03:39:11 +0000 Subject: [PATCH 12/12] generic minix_{test,set,test_and_clear,test,find_first_zero}_bit() Message-Id: <20060126033910.GK11138@miraclelinux.com> List-Id: References: <20060125112625.GA18584@miraclelinux.com> <20060125113206.GD18584@miraclelinux.com> <20060125200250.GA26443@flint.arm.linux.org.uk> <20060125205907.GF9995@esmail.cup.hp.com> <20060126032713.GA9984@miraclelinux.com> In-Reply-To: <20060126032713.GA9984@miraclelinux.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Grant Grundler Cc: Linux Kernel Development , linux-ia64@vger.kernel.org This patch introduces the C-language equivalents of the functions below: HAVE_ARCH_MINIX_BITOPS is defined when the architecture has its own version of these functions. int minix_test_and_set_bit(int nr, volatile unsigned long *addr); int minix_set_bit(int nr, volatile unsigned long *addr); int minix_test_and_clear_bit(int nr, volatile unsigned long *addr); int minix_test_bit(int nr, const volatile unsigned long *addr); unsigned long minix_find_first_zero_bit(const unsigned long *addr, unsigned long size); This code largely copied from: include/asm-sparc/bitops.h Index: 2.6-git/include/asm-generic/bitops.h =================================--- 2.6-git.orig/include/asm-generic/bitops.h 2006-01-25 19:14:12.000000000 +0900 +++ 2.6-git/include/asm-generic/bitops.h 2006-01-25 19:14:12.000000000 +0900 @@ -667,6 +667,21 @@ #endif /* HAVE_ARCH_EXT2_ATOMIC_BITOPS */ +#ifndef HAVE_ARCH_MINIX_BITOPS + +#define minix_test_and_set_bit(nr,addr) \ + __test_and_set_bit((nr),(unsigned long *)(addr)) +#define minix_set_bit(nr,addr) \ + __set_bit((nr),(unsigned long *)(addr)) +#define minix_test_and_clear_bit(nr,addr) \ + __test_and_clear_bit((nr),(unsigned long *)(addr)) +#define minix_test_bit(nr,addr) \ + test_bit((nr),(unsigned long *)(addr)) +#define minix_find_first_zero_bit(addr,size) \ + find_first_zero_bit((unsigned long *)(addr),(size)) + +#endif /* HAVE_ARCH_MINIX_BITOPS */ + #endif /* __KERNEL__ */ #endif /* _ASM_GENERIC_BITOPS_H */