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authorUlrich Drepper <drepper@redhat.com>2006-02-11 17:55:47 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-11 21:41:10 -0800
commitcff2b760096d1e6feaa31948e7af4abbefe47822 (patch)
tree9bd6d2796ffb8c6611ca06b74c6349f8f1289ce2 /include
parent25bf368b3d98668c5d5f38e2201d8bca16e52680 (diff)
downloadop-kernel-dev-cff2b760096d1e6feaa31948e7af4abbefe47822.zip
op-kernel-dev-cff2b760096d1e6feaa31948e7af4abbefe47822.tar.gz
[PATCH] fstatat64 support
The *at patches introduced fstatat and, due to inusfficient research, I used the newfstat functions generally as the guideline. The result is that on 32-bit platforms we don't have all the information needed to implement fstatat64. This patch modifies the code to pass up 64-bit information if __ARCH_WANT_STAT64 is defined. I renamed the syscall entry point to make this clear. Other archs will continue to use the existing code. On x86-64 the compat code is implemented using a new sys32_ function. this is what is done for the other stat syscalls as well. This patch might break some other archs (those which define __ARCH_WANT_STAT64 and which already wired up the syscall). Yet others might need changes to accomodate the compatibility mode. I really don't want to do that work because all this stat handling is a mess (more so in glibc, but the kernel is also affected). It should be done by the arch maintainers. I'll provide some stand-alone test shortly. Those who are eager could compile glibc and run 'make check' (no installation needed). The patch below has been tested on x86 and x86-64. Signed-off-by: Ulrich Drepper <drepper@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-i386/unistd.h2
-rw-r--r--include/asm-x86_64/ia32_unistd.h2
-rw-r--r--include/linux/syscalls.h2
3 files changed, 4 insertions, 2 deletions
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index cf6f2cd..dc81a55 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -305,7 +305,7 @@
#define __NR_mknodat 297
#define __NR_fchownat 298
#define __NR_futimesat 299
-#define __NR_newfstatat 300
+#define __NR_fstatat64 300
#define __NR_unlinkat 301
#define __NR_renameat 302
#define __NR_linkat 303
diff --git a/include/asm-x86_64/ia32_unistd.h b/include/asm-x86_64/ia32_unistd.h
index 2046898..eeb2bcd 100644
--- a/include/asm-x86_64/ia32_unistd.h
+++ b/include/asm-x86_64/ia32_unistd.h
@@ -305,7 +305,7 @@
#define __NR_ia32_mknodat 297
#define __NR_ia32_fchownat 298
#define __NR_ia32_futimesat 299
-#define __NR_ia32_newfstatat 300
+#define __NR_ia32_fstatat64 300
#define __NR_ia32_unlinkat 301
#define __NR_ia32_renameat 302
#define __NR_ia32_linkat 303
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 3877209..d73501b 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -557,6 +557,8 @@ asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
int mode);
asmlinkage long sys_newfstatat(int dfd, char __user *filename,
struct stat __user *statbuf, int flag);
+asmlinkage long sys_fstatat64(int dfd, char __user *filename,
+ struct stat64 __user *statbuf, int flag);
asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
int bufsiz);
asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename,
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