From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Aneesh Kumar K.V" Subject: [PATCH -V7 8/9] x86: Add new syscalls for x86_64 Date: Wed, 12 May 2010 21:20:43 +0530 Message-ID: <1273679444-14903-9-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1273679444-14903-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: linux-fsdevel@vger.kernel.org, sfrench@us.ibm.com, philippe.deniel@CEA.FR, linux-kernel@vger.kernel.org, "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 Return-path: In-Reply-To: <1273679444-14903-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Add sys_name_to_handle_at, sys_open_by_handle syscall and sys_freadlink for x86_64 Signed-off-by: Aneesh Kumar K.V --- arch/x86/ia32/ia32entry.S | 3 +++ arch/x86/include/asm/unistd_64.h | 6 ++++++ fs/compat.c | 10 ++++++++++ fs/open.c | 2 +- include/linux/fs.h | 1 + 5 files changed, 21 insertions(+), 1 deletions(-) diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index e790bc1..2f4c979 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -842,4 +842,7 @@ 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 + .quad sys_freadlink /* 340 */ ia32_syscall_end: diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h index ff4307b..c32428d 100644 --- a/arch/x86/include/asm/unistd_64.h +++ b/arch/x86/include/asm/unistd_64.h @@ -663,6 +663,12 @@ __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) +#define __NR_freadlink 302 +__SYSCALL(__NR_freadlink, sys_freadlink) #ifndef __NO_STUBS #define __ARCH_WANT_OLD_READDIR diff --git a/fs/compat.c b/fs/compat.c index 4b6ed03..5c71c98 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -2310,3 +2310,13 @@ asmlinkage long compat_sys_timerfd_gettime(int ufd, } #endif /* CONFIG_TIMERFD */ + +/* + * Exactly like fs/open.c:sys_open_by_handle(), except that it doesn't set the + * O_LARGEFILE flag. + */ +asmlinkage long +compat_sys_open_by_handle(struct file_handle __user *handle, int flags) +{ + return do_sys_open_by_handle(handle, flags); +} diff --git a/fs/open.c b/fs/open.c index 348a1b9..b8924e1 100644 --- a/fs/open.c +++ b/fs/open.c @@ -1335,7 +1335,7 @@ static struct dentry *handle_to_dentry(struct vfsmount *mnt, return dentry; } -static long do_sys_open_by_handle(struct file_handle __user *ufh, int flags) +long do_sys_open_by_handle(struct file_handle __user *ufh, int flags) { int fd; int retval = 0; diff --git a/include/linux/fs.h b/include/linux/fs.h index 055734c..6dcf696 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(struct file_handle __user *, int); /* fs/ioctl.c */ -- 1.7.1.78.g212f0