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authorUlrich Drepper <drepper@redhat.com>2008-07-23 21:29:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 10:47:29 -0700
commit9fe5ad9c8cef9ad5873d8ee55d1cf00d9b607df0 (patch)
tree49fb04cf552192e566d2aa6e18f40585230cba5a /fs/eventpoll.c
parente38b36f325153eaadd1c2a7abc5762079233e540 (diff)
downloadlwn-9fe5ad9c8cef9ad5873d8ee55d1cf00d9b607df0.tar.gz
lwn-9fe5ad9c8cef9ad5873d8ee55d1cf00d9b607df0.zip
flag parameters add-on: remove epoll_create size param
Remove the size parameter from the new epoll_create syscall and renames the syscall itself. The updated test program follows. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include <fcntl.h> #include <stdio.h> #include <time.h> #include <unistd.h> #include <sys/syscall.h> #ifndef __NR_epoll_create2 # ifdef __x86_64__ # define __NR_epoll_create2 291 # elif defined __i386__ # define __NR_epoll_create2 329 # else # error "need __NR_epoll_create2" # endif #endif #define EPOLL_CLOEXEC O_CLOEXEC int main (void) { int fd = syscall (__NR_epoll_create2, 0); if (fd == -1) { puts ("epoll_create2(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("epoll_create2(0) set close-on-exec flag"); return 1; } close (fd); fd = syscall (__NR_epoll_create2, EPOLL_CLOEXEC); if (fd == -1) { puts ("epoll_create2(EPOLL_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("epoll_create2(EPOLL_CLOEXEC) set close-on-exec flag"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 'fs/eventpoll.c')
-rw-r--r--fs/eventpoll.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 2fdad4204044..0c87474f7917 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1046,7 +1046,7 @@ retry:
* RB tree. With the current implementation, the "size" parameter is ignored
* (besides sanity checks).
*/
-asmlinkage long sys_epoll_create2(int size, int flags)
+asmlinkage long sys_epoll_create1(int flags)
{
int error, fd = -1;
struct eventpoll *ep;
@@ -1058,14 +1058,13 @@ asmlinkage long sys_epoll_create2(int size, int flags)
return -EINVAL;
DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d)\n",
- current, size));
+ current, flags));
/*
- * Sanity check on the size parameter, and create the internal data
- * structure ( "struct eventpoll" ).
+ * Create the internal data structure ( "struct eventpoll" ).
*/
- error = -EINVAL;
- if (size <= 0 || (error = ep_alloc(&ep)) < 0) {
+ error = ep_alloc(&ep);
+ if (error < 0) {
fd = error;
goto error_return;
}
@@ -1081,14 +1080,17 @@ asmlinkage long sys_epoll_create2(int size, int flags)
error_return:
DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n",
- current, size, fd));
+ current, flags, fd));
return fd;
}
asmlinkage long sys_epoll_create(int size)
{
- return sys_epoll_create2(size, 0);
+ if (size < 0)
+ return -EINVAL;
+
+ return sys_epoll_create1(0);
}
/*