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authorUlrich Drepper <drepper@redhat.com>2008-07-24 00:29:32 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 13:47:28 -0400
commit4006553b06306b34054529477b06b68a1c66249b (patch)
treed4ebbe4a5294b0cec69fe4908b7b7c569f4ece03 /arch
parented8cae8ba01348bfd83333f4648dd807b04d7f08 (diff)
flag parameters: inotify_init
This patch introduces the new syscall inotify_init1 (note: the 1 stands for the one parameter the syscall takes, as opposed to no parameter before). The values accepted for this parameter are function-specific and defined in the inotify.h header. Here the values must match the O_* flags, though. In this patch CLOEXEC support is introduced. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include <fcntl.h> #include <stdio.h> #include <unistd.h> #include <sys/syscall.h> #ifndef __NR_inotify_init1 # ifdef __x86_64__ # define __NR_inotify_init1 294 # elif defined __i386__ # define __NR_inotify_init1 332 # else # error "need __NR_inotify_init1" # endif #endif #define IN_CLOEXEC O_CLOEXEC int main (void) { int fd; fd = syscall (__NR_inotify_init1, 0); if (fd == -1) { puts ("inotify_init1(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("inotify_init1(0) set close-on-exit"); return 1; } close (fd); fd = syscall (__NR_inotify_init1, IN_CLOEXEC); if (fd == -1) { puts ("inotify_init1(IN_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("inotify_init1(O_CLOEXEC) does not set close-on-exit"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [akpm@linux-foundation.org: add sys_ni stub] Signed-off-by: Ulrich Drepper <drepper@redhat.com> Acked-by: Davide Libenzi <davidel@xmailserver.org> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/ia32/ia32entry.S1
-rw-r--r--arch/x86/kernel/syscall_table_32.S1
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 18808b164570..4541073dd837 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -831,4 +831,5 @@ ia32_sys_call_table:
831 .quad sys_epoll_create2 831 .quad sys_epoll_create2
832 .quad sys_dup3 /* 330 */ 832 .quad sys_dup3 /* 330 */
833 .quad sys_pipe2 833 .quad sys_pipe2
834 .quad sys_inotify_init1
834ia32_syscall_end: 835ia32_syscall_end:
diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S
index 66154769d52f..f59aba5ff0f0 100644
--- a/arch/x86/kernel/syscall_table_32.S
+++ b/arch/x86/kernel/syscall_table_32.S
@@ -331,3 +331,4 @@ ENTRY(sys_call_table)
331 .long sys_epoll_create2 331 .long sys_epoll_create2
332 .long sys_dup3 /* 330 */ 332 .long sys_dup3 /* 330 */
333 .long sys_pipe2 333 .long sys_pipe2
334 .long sys_inotify_init1