diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2014-03-03 10:44:03 +0100 |
|---|---|---|
| committer | Heiko Carstens <heiko.carstens@de.ibm.com> | 2014-03-04 09:05:33 +0100 |
| commit | 0473c9b5f05948df780bbc7b996dd7aefc4ec41d (patch) | |
| tree | 3413bbef3bcaa444bb051f7a9c9de9579d0e0374 /include/linux/compat.h | |
| parent | 0414855fdc4a40da05221fc6062cccbc0c30f169 (diff) | |
compat: let architectures define __ARCH_WANT_COMPAT_SYS_GETDENTS64
For architecture dependent compat syscalls in common code an architecture
must define something like __ARCH_WANT_<WHATEVER> if it wants to use the
code.
This however is not true for compat_sys_getdents64 for which architectures
must define __ARCH_OMIT_COMPAT_SYS_GETDENTS64 if they do not want the code.
This leads to the situation where all architectures, except mips, get the
compat code but only x86_64, arm64 and the generic syscall architectures
actually use it.
So invert the logic, so that architectures actively must do something to
get the compat code.
This way a couple of architectures get rid of otherwise dead code.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'include/linux/compat.h')
| -rw-r--r-- | include/linux/compat.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/compat.h b/include/linux/compat.h index 3f448c65511b..beded18f992d 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -502,9 +502,11 @@ asmlinkage long compat_sys_old_readdir(unsigned int fd, asmlinkage long compat_sys_getdents(unsigned int fd, struct compat_linux_dirent __user *dirent, unsigned int count); +#ifdef __ARCH_WANT_COMPAT_SYS_GETDENTS64 asmlinkage long compat_sys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, unsigned int count); +#endif asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *, unsigned int nr_segs, unsigned int flags); asmlinkage long compat_sys_open(const char __user *filename, int flags, |