From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Wed, 14 Jun 2006 13:10:51 +0000 (+0100)
Subject: [S390] __FD_foo definitions.
X-Git-Tag: v2.6.18-rc1~1103^2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9348f0de2d2b541b4ba64fb1f4efee9710a3d731;p=linux-2.6

[S390] __FD_foo definitions.

Make the definitions of __FD_SET, __FD_CLR and __FD_ISSET independent
from asm/bitops.h and remove the macro magic that tests for __GLIBC__.
Use simple C inline functions instead of set_bit, clear_bit and test_bit.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
---

diff --git a/include/asm-s390/posix_types.h b/include/asm-s390/posix_types.h
index 61788de3c0..b94c98856e 100644
--- a/include/asm-s390/posix_types.h
+++ b/include/asm-s390/posix_types.h
@@ -76,24 +76,36 @@ typedef struct {
 } __kernel_fsid_t;
 
 
-#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
-
-#ifndef _S390_BITOPS_H
-#include <asm/bitops.h>
-#endif
-
-#undef  __FD_SET
-#define __FD_SET(fd,fdsetp)  set_bit((fd),(fdsetp)->fds_bits)
-
-#undef  __FD_CLR
-#define __FD_CLR(fd,fdsetp)  clear_bit((fd),(fdsetp)->fds_bits)
-
-#undef  __FD_ISSET
-#define __FD_ISSET(fd,fdsetp)  test_bit((fd),(fdsetp)->fds_bits)
+#ifdef __KERNEL__
+
+#undef __FD_SET
+static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
+}
+
+#undef __FD_CLR
+static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
+}
+
+#undef __FD_ISSET
+static inline int __FD_ISSET(unsigned long fd, const __kernel_fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	return (fdsetp->fds_bits[_tmp] & (1UL<<_rem)) != 0;
+}
 
 #undef  __FD_ZERO
-#define __FD_ZERO(fdsetp) (memset ((fdsetp), 0, sizeof(*(fd_set *)(fdsetp))))
+#define __FD_ZERO(fdsetp) \
+	((void) memset ((__ptr_t) (fdsetp), 0, sizeof (__kernel_fd_set)))
 
-#endif     /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)*/
+#endif     /* __KERNEL__ */
 
 #endif