From c8d127418d78aaeeb1a417ef7453dc09c9118146 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 6 Sep 2005 15:17:27 -0700 Subject: [PATCH] remove asm-*/hdreg.h unused and useless.. Signed-off-by: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/hdreg.h | 8 -------- 1 file changed, 8 deletions(-) delete mode 100644 include/asm-generic/hdreg.h (limited to 'include/asm-generic') diff --git a/include/asm-generic/hdreg.h b/include/asm-generic/hdreg.h deleted file mode 100644 index 7051fba8bcf9..000000000000 --- a/include/asm-generic/hdreg.h +++ /dev/null @@ -1,8 +0,0 @@ -#warning is obsolete, please do not use it - -#ifndef __ASM_GENERIC_HDREG_H -#define __ASM_GENERIC_HDREG_H - -typedef unsigned long ide_ioreg_t; - -#endif /* __ASM_GENERIC_HDREG_H */ -- cgit From eed74dfcd48101d259012ac08d29061eea500249 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 6 Sep 2005 15:17:51 -0700 Subject: [PATCH] optimise 64bit unaligned access on 32bit kernel I've rewriten Atushi's fix for the 64-bit put_unaligned on 32-bit systems bug to generate more efficient code. This case has buzilla URL http://bugzilla.kernel.org/show_bug.cgi?id=5138. Signed-off-by: Ralf Baechle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/unaligned.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include/asm-generic') diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h index 6c90f0f36eec..4dc8ddb401c1 100644 --- a/include/asm-generic/unaligned.h +++ b/include/asm-generic/unaligned.h @@ -16,9 +16,9 @@ * The main single-value unaligned transfer routines. */ #define get_unaligned(ptr) \ - ((__typeof__(*(ptr)))__get_unaligned((ptr), sizeof(*(ptr)))) + __get_unaligned((ptr), sizeof(*(ptr))) #define put_unaligned(x,ptr) \ - __put_unaligned((unsigned long)(x), (ptr), sizeof(*(ptr))) + __put_unaligned((__u64)(x), (ptr), sizeof(*(ptr))) /* * This function doesn't actually exist. The idea is that when @@ -36,19 +36,19 @@ struct __una_u16 { __u16 x __attribute__((packed)); }; * Elemental unaligned loads */ -static inline unsigned long __uldq(const __u64 *addr) +static inline __u64 __uldq(const __u64 *addr) { const struct __una_u64 *ptr = (const struct __una_u64 *) addr; return ptr->x; } -static inline unsigned long __uldl(const __u32 *addr) +static inline __u32 __uldl(const __u32 *addr) { const struct __una_u32 *ptr = (const struct __una_u32 *) addr; return ptr->x; } -static inline unsigned long __uldw(const __u16 *addr) +static inline __u16 __uldw(const __u16 *addr) { const struct __una_u16 *ptr = (const struct __una_u16 *) addr; return ptr->x; @@ -78,7 +78,7 @@ static inline void __ustw(__u16 val, __u16 *addr) #define __get_unaligned(ptr, size) ({ \ const void *__gu_p = ptr; \ - unsigned long val; \ + __typeof__(*(ptr)) val; \ switch (size) { \ case 1: \ val = *(const __u8 *)__gu_p; \ -- cgit From 9317259ead88fe6c05120ae1e3ace99738e2c698 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 6 Sep 2005 15:17:57 -0700 Subject: [PATCH] Create asm-generic/fcntl.h This set of patches creates asm-generic/fcntl.h and consolidates as much as possible from the asm-*/fcntl.h files into it. This patch just gathers all the identical bits of the asm-*/fcntl.h files into asm-generic/fcntl.h. Signed-off-by: Stephen Rothwell Signed-off-by: Yoichi Yuasa Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/fcntl.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 include/asm-generic/fcntl.h (limited to 'include/asm-generic') diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h new file mode 100644 index 000000000000..d256c5bb6edc --- /dev/null +++ b/include/asm-generic/fcntl.h @@ -0,0 +1,32 @@ +#ifndef _ASM_GENERIC_FCNTL_H +#define _ASM_GENERIC_FCNTL_H + +#define O_ACCMODE 0003 +#define O_RDONLY 0000 +#define O_WRONLY 0001 +#define O_RDWR 0002 + +#define F_DUPFD 0 /* dup */ +#define F_GETFD 1 /* get close_on_exec */ +#define F_SETFD 2 /* set/clear close_on_exec */ +#define F_GETFL 3 /* get file->f_flags */ +#define F_SETFL 4 /* set file->f_flags */ + +/* for F_[GET|SET]FL */ +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ + +/* operations for bsd flock(), also used by the kernel implementation */ +#define LOCK_SH 1 /* shared lock */ +#define LOCK_EX 2 /* exclusive lock */ +#define LOCK_NB 4 /* or'd with one of the above to prevent + blocking */ +#define LOCK_UN 8 /* remove lock */ + +#define LOCK_MAND 32 /* This is a mandatory flock ... */ +#define LOCK_READ 64 /* which allows concurrent read operations */ +#define LOCK_WRITE 128 /* which allows concurrent write operations */ +#define LOCK_RW 192 /* which allows concurrent read & write ops */ + +#define F_LINUX_SPECIFIC_BASE 1024 + +#endif /* _ASM_GENERIC_FCNTL_H */ -- cgit From e64ca97fd80a129e538ca42d0b12c379746b83db Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 6 Sep 2005 15:17:58 -0700 Subject: [PATCH] Clean up the open flags This patch puts the most popular of each open flag into asm-generic/fcntl.h and cleans up the arch files. Signed-off-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/fcntl.h | 52 +++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 48 insertions(+), 4 deletions(-) (limited to 'include/asm-generic') diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h index d256c5bb6edc..f3690e73a40f 100644 --- a/include/asm-generic/fcntl.h +++ b/include/asm-generic/fcntl.h @@ -1,10 +1,54 @@ #ifndef _ASM_GENERIC_FCNTL_H #define _ASM_GENERIC_FCNTL_H -#define O_ACCMODE 0003 -#define O_RDONLY 0000 -#define O_WRONLY 0001 -#define O_RDWR 0002 +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files + located on an ext2 file system */ +#define O_ACCMODE 00000003 +#define O_RDONLY 00000000 +#define O_WRONLY 00000001 +#define O_RDWR 00000002 +#ifndef O_CREAT +#define O_CREAT 00000100 /* not fcntl */ +#endif +#ifndef O_EXCL +#define O_EXCL 00000200 /* not fcntl */ +#endif +#ifndef O_NOCTTY +#define O_NOCTTY 00000400 /* not fcntl */ +#endif +#ifndef O_TRUNC +#define O_TRUNC 00001000 /* not fcntl */ +#endif +#ifndef O_APPEND +#define O_APPEND 00002000 +#endif +#ifndef O_NONBLOCK +#define O_NONBLOCK 00004000 +#endif +#ifndef O_SYNC +#define O_SYNC 00010000 +#endif +#ifndef FASYNC +#define FASYNC 00020000 /* fcntl, for BSD compatibility */ +#endif +#ifndef O_DIRECT +#define O_DIRECT 00040000 /* direct disk access hint */ +#endif +#ifndef O_LARGEFILE +#define O_LARGEFILE 00100000 +#endif +#ifndef O_DIRECTORY +#define O_DIRECTORY 00200000 /* must be a directory */ +#endif +#ifndef O_NOFOLLOW +#define O_NOFOLLOW 00400000 /* don't follow links */ +#endif +#ifndef O_NOATIME +#define O_NOATIME 01000000 +#endif +#ifndef O_NDELAY +#define O_NDELAY O_NONBLOCK +#endif #define F_DUPFD 0 /* dup */ #define F_GETFD 1 /* get close_on_exec */ -- cgit From 1abf62afb6e9cdc1b2618b69067a186b94281587 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 6 Sep 2005 15:17:59 -0700 Subject: [PATCH] Clean up the fcntl operations This patch puts the most popular of each fcntl operation/flag into asm-generic/fcntl.h and cleans up the arch files. Signed-off-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/fcntl.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'include/asm-generic') diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h index f3690e73a40f..1e66f923a252 100644 --- a/include/asm-generic/fcntl.h +++ b/include/asm-generic/fcntl.h @@ -55,10 +55,41 @@ #define F_SETFD 2 /* set/clear close_on_exec */ #define F_GETFL 3 /* get file->f_flags */ #define F_SETFL 4 /* set file->f_flags */ +#ifndef F_GETLK +#define F_GETLK 5 +#define F_SETLK 6 +#define F_SETLKW 7 +#endif +#ifndef F_SETOWN +#define F_SETOWN 8 /* for sockets. */ +#define F_GETOWN 9 /* for sockets. */ +#endif +#ifndef F_SETSIG +#define F_SETSIG 10 /* for sockets. */ +#define F_GETSIG 11 /* for sockets. */ +#endif /* for F_[GET|SET]FL */ #define FD_CLOEXEC 1 /* actually anything with low bit set goes */ +/* for posix fcntl() and lockf() */ +#ifndef F_RDLCK +#define F_RDLCK 0 +#define F_WRLCK 1 +#define F_UNLCK 2 +#endif + +/* for old implementation of bsd flock () */ +#ifndef F_EXLCK +#define F_EXLCK 4 /* or 3 */ +#define F_SHLCK 8 /* or 4 */ +#endif + +/* for leases */ +#ifndef F_INPROGRESS +#define F_INPROGRESS 16 +#endif + /* operations for bsd flock(), also used by the kernel implementation */ #define LOCK_SH 1 /* shared lock */ #define LOCK_EX 2 /* exclusive lock */ -- cgit From 5ac353f9baf7169298ebb7de86b2d697b25bca44 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 6 Sep 2005 15:18:00 -0700 Subject: [PATCH] Clean up struct flock definitions This patch just gathers together all the struct flock definitions except xtensa into asm-generic/fcntl.h. Signed-off-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/fcntl.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'include/asm-generic') diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h index 1e66f923a252..b001d7fe0384 100644 --- a/include/asm-generic/fcntl.h +++ b/include/asm-generic/fcntl.h @@ -1,6 +1,8 @@ #ifndef _ASM_GENERIC_FCNTL_H #define _ASM_GENERIC_FCNTL_H +#include + /* open/fcntl - O_SYNC is only implemented on blocks devices and on files located on an ext2 file system */ #define O_ACCMODE 00000003 @@ -104,4 +106,19 @@ #define F_LINUX_SPECIFIC_BASE 1024 +#ifndef HAVE_ARCH_STRUCT_FLOCK +#ifndef __ARCH_FLOCK_PAD +#define __ARCH_FLOCK_PAD +#endif + +struct flock { + short l_type; + short l_whence; + off_t l_start; + off_t l_len; + pid_t l_pid; + __ARCH_FLOCK_PAD +}; +#endif + #endif /* _ASM_GENERIC_FCNTL_H */ -- cgit From 8d286aa5eaf951bf53d4a0f64576d4b377c435ba Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 6 Sep 2005 15:18:01 -0700 Subject: [PATCH] Clean up struct flock64 definitions This patch gathers all the struct flock64 definitions (and the operations), puts them under !CONFIG_64BIT and cleans up the arch files. Signed-off-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/fcntl.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'include/asm-generic') diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h index b001d7fe0384..b663520dcdc4 100644 --- a/include/asm-generic/fcntl.h +++ b/include/asm-generic/fcntl.h @@ -1,6 +1,7 @@ #ifndef _ASM_GENERIC_FCNTL_H #define _ASM_GENERIC_FCNTL_H +#include #include /* open/fcntl - O_SYNC is only implemented on blocks devices and on files @@ -121,4 +122,28 @@ struct flock { }; #endif +#ifndef CONFIG_64BIT + +#ifndef F_GETLK64 +#define F_GETLK64 12 /* using 'struct flock64' */ +#define F_SETLK64 13 +#define F_SETLKW64 14 +#endif + +#ifndef HAVE_ARCH_STRUCT_FLOCK64 +#ifndef __ARCH_FLOCK64_PAD +#define __ARCH_FLOCK64_PAD +#endif + +struct flock64 { + short l_type; + short l_whence; + loff_t l_start; + loff_t l_len; + pid_t l_pid; + __ARCH_FLOCK64_PAD +}; +#endif +#endif /* !CONFIG_64BIT */ + #endif /* _ASM_GENERIC_FCNTL_H */ -- cgit From d0aaff9796c3310326d10da44fc0faed352a1d29 Mon Sep 17 00:00:00 2001 From: Prasanna S Panchamukhi Date: Tue, 6 Sep 2005 15:19:26 -0700 Subject: [PATCH] Kprobes: prevent possible race conditions generic There are possible race conditions if probes are placed on routines within the kprobes files and routines used by the kprobes. For example if you put probe on get_kprobe() routines, the system can hang while inserting probes on any routine such as do_fork(). Because while inserting probes on do_fork(), register_kprobes() routine grabs the kprobes spin lock and executes get_kprobe() routine and to handle probe of get_kprobe(), kprobes_handler() gets executed and tries to grab kprobes spin lock, and spins forever. This patch avoids such possible race conditions by preventing probes on routines within the kprobes file and routines used by kprobes. I have modified the patches as per Andi Kleen's suggestion to move kprobes routines and other routines used by kprobes to a seperate section .kprobes.text. Also moved page fault and exception handlers, general protection fault to .kprobes.text section. These patches have been tested on i386, x86_64 and ppc64 architectures, also compiled on ia64 and sparc64 architectures. Signed-off-by: Prasanna S Panchamukhi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/sections.h | 1 + include/asm-generic/vmlinux.lds.h | 6 ++++++ 2 files changed, 7 insertions(+) (limited to 'include/asm-generic') diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index 450eae22c39a..886dbd116899 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -12,5 +12,6 @@ extern char _sextratext[] __attribute__((weak)); extern char _eextratext[] __attribute__((weak)); extern char _end[]; extern char __per_cpu_start[], __per_cpu_end[]; +extern char __kprobes_text_start[], __kprobes_text_end[]; #endif /* _ASM_GENERIC_SECTIONS_H_ */ diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 3fa94288aa93..6f857be2b644 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -97,3 +97,9 @@ VMLINUX_SYMBOL(__lock_text_start) = .; \ *(.spinlock.text) \ VMLINUX_SYMBOL(__lock_text_end) = .; + +#define KPROBES_TEXT \ + ALIGN_FUNCTION(); \ + VMLINUX_SYMBOL(__kprobes_text_start) = .; \ + *(.kprobes.text) \ + VMLINUX_SYMBOL(__kprobes_text_end) = .; -- cgit