Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757001Ab0FCQQF (ORCPT ); Thu, 3 Jun 2010 12:16:05 -0400 Received: from e28smtp09.in.ibm.com ([122.248.162.9]:34960 "EHLO e28smtp09.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756866Ab0FCQOf (ORCPT ); Thu, 3 Jun 2010 12:14:35 -0400 From: "Aneesh Kumar K.V" To: hch@infradead.org, viro@zeniv.linux.org.uk, adilger@sun.com, corbet@lwn.net, serue@us.ibm.com, neilb@suse.de, hooanon05@yahoo.co.jp, bfields@fieldses.org Cc: linux-fsdevel@vger.kernel.org, sfrench@us.ibm.com, philippe.deniel@CEA.FR, linux-kernel@vger.kernel.org, "Aneesh Kumar K.V" Subject: [PATCH -V13 08/11] x86: Add new syscalls for x86_64 Date: Thu, 3 Jun 2010 21:44:14 +0530 Message-Id: <1275581657-7232-9-git-send-email-aneesh.kumar@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.1.236.g81fa0 In-Reply-To: <1275581657-7232-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1275581657-7232-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3663 Lines: 119 Add sys_name_to_handle_at and sys_open_by_handle_at syscalls for x86_64 Signed-off-by: Aneesh Kumar K.V --- arch/x86/ia32/ia32entry.S | 2 ++ arch/x86/include/asm/unistd_64.h | 4 ++++ fs/compat.c | 11 +++++++++++ fs/open.c | 20 ++++++++++---------- include/linux/fs.h | 1 + 5 files changed, 28 insertions(+), 10 deletions(-) diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index e790bc1..99f9623 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_at /* 339 */ ia32_syscall_end: diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h index ff4307b..6afd818 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_at, sys_name_to_handle_at) +#define __NR_open_by_handle_at 301 +__SYSCALL(__NR_open_by_handle_at, sys_open_by_handle_at) #ifndef __NO_STUBS #define __ARCH_WANT_OLD_READDIR diff --git a/fs/compat.c b/fs/compat.c index f0b391c..f2f86e5 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -2332,3 +2332,14 @@ 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_at(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 9c3df5f..3cff394 100644 --- a/fs/open.c +++ b/fs/open.c @@ -1217,8 +1217,8 @@ 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) { long retval = 0; int fd, acc_mode; @@ -1320,6 +1320,14 @@ out_handle: out_err: return retval; } +#else +long do_sys_open_by_handle(int mountdirfd, + struct file_handle __user *ufh, int open_flag) +{ + + return -ENOSYS; +} +#endif /** * sys_open_by_handle_at: Open the file handle @@ -1344,11 +1352,3 @@ SYSCALL_DEFINE3(open_by_handle_at, int, mountdirfd, ret = do_sys_open_by_handle(mountdirfd, handle, flags); return ret; } -#else -SYSCALL_DEFINE3(open_by_handle_at, int, mountdirfd, - struct file_handle __user *, handle, - int, flags) -{ - return -ENOSYS; -} -#endif diff --git a/include/linux/fs.h b/include/linux/fs.h index aec3292..0a629de 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1930,6 +1930,7 @@ 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 */ -- 1.7.1.236.g81fa0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/