Add sys_name_to_handle_at and sys_open_by_handle_at syscalls for x86_64 Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> --- arch/x86/ia32/ia32entry.S | 2 ++ arch/x86/include/asm/unistd_64.h | 4 ++++ fs/compat.c | 11 +++++++++++ fs/open.c | 4 ++-- include/linux/fs.h | 1 + 5 files changed, 20 insertions(+), 2 deletions(-) diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index e790bc1..74552bc 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -842,4 +842,6 @@ ia32_sys_call_table: .quad compat_sys_rt_tgsigqueueinfo /* 335 */ .quad sys_perf_event_open .quad compat_sys_recvmmsg + .quad sys_name_to_handle_at + .quad compat_sys_open_by_handle /* 339 */ ia32_syscall_end: diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h index ff4307b..a5c3622 100644 --- a/arch/x86/include/asm/unistd_64.h +++ b/arch/x86/include/asm/unistd_64.h @@ -663,6 +663,10 @@ __SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo) __SYSCALL(__NR_perf_event_open, sys_perf_event_open) #define __NR_recvmmsg 299 __SYSCALL(__NR_recvmmsg, sys_recvmmsg) +#define __NR_name_to_handle_at 300 +__SYSCALL(__NR_name_to_handle, sys_name_to_handle) +#define __NR_open_by_handle 301 +__SYSCALL(__NR_open_by_handle, sys_open_by_handle) #ifndef __NO_STUBS #define __ARCH_WANT_OLD_READDIR diff --git a/fs/compat.c b/fs/compat.c index 0544873..f46d2d6 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -2308,3 +2308,14 @@ asmlinkage long compat_sys_timerfd_gettime(int ufd, } #endif /* CONFIG_TIMERFD */ + +/* + * Exactly like fs/open.c:sys_open_by_handle_at(), except that it + * doesn't set the O_LARGEFILE flag. + */ +asmlinkage long +compat_sys_open_by_handle(int mountdirfd, + struct file_handle __user *handle, int flags) +{ + return do_sys_open_by_handle(mountdirfd, handle, flags); +} diff --git a/fs/open.c b/fs/open.c index c1faf11..7450e0e 100644 --- a/fs/open.c +++ b/fs/open.c @@ -1350,8 +1350,8 @@ out_err: return ERR_PTR(retval); } -static long do_sys_open_by_handle(int mountdirfd, - struct file_handle __user *ufh, int open_flag) +long do_sys_open_by_handle(int mountdirfd, + struct file_handle __user *ufh, int open_flag) { int acc_mode; int fd, retval = 0; diff --git a/include/linux/fs.h b/include/linux/fs.h index 1417df5..c921000 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1933,6 +1933,7 @@ extern struct file * dentry_open(struct dentry *, struct vfsmount *, int, const struct cred *); extern int filp_close(struct file *, fl_owner_t id); extern char * getname(const char __user *); +extern long do_sys_open_by_handle(int, struct file_handle __user *, int); /* fs/ioctl.c */ -- 1.7.1.78.g212f0 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html