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authorCatalin Marinas <catalin.marinas@arm.com>2012-09-19 12:01:52 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2012-10-02 21:35:55 -0400
commit8f9c0119d7ba94c3ad13876acc240d7f12b6d8e1 (patch)
tree44d618a21b60c5a268088bfae6c78c591f1e4334 /arch/powerpc/include/asm/unistd.h
parent8c0a85377048b64c880e76ec7368904fe46d0b94 (diff)
downloadop-kernel-dev-8f9c0119d7ba94c3ad13876acc240d7f12b6d8e1.zip
op-kernel-dev-8f9c0119d7ba94c3ad13876acc240d7f12b6d8e1.tar.gz
compat: fs: Generic compat_sys_sendfile implementation
This function is used by sparc, powerpc and arm64 for compat support. The patch adds a generic implementation which calls do_sendfile() directly and avoids set_fs(). The sparc architecture has wrappers for the sign extensions while powerpc relies on the compiler to do the this. The patch adds wrappers for powerpc to handle the u32->int type conversion. compat_sys_sendfile64() can be replaced by a sys_sendfile() call since compat_loff_t has the same size as off_t on a 64-bit system. On powerpc, the patch also changes the 64-bit sendfile call from sys_sendile64 to sys_sendfile. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/powerpc/include/asm/unistd.h')
-rw-r--r--arch/powerpc/include/asm/unistd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index bd377a3..c683fa3 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -419,6 +419,7 @@
#define __ARCH_WANT_COMPAT_SYS_TIME
#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_NEWFSTATAT
+#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
/*
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