X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Feventpoll.c;h=99368bda0261321290a6afa52ad74a797f79cd54;hb=ec38fa2b35f13e7fa1d676a5bc997d0df1b02574;hp=990c01d2d66bcce64a1c2a993cd6cc01ea5951d5;hpb=2a5f2e3e6cd1ce9fb3f8b186b6bc9aa1f1497a92;p=linux-2.6-omap-h63xx.git diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 990c01d2d66..99368bda026 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -927,14 +927,11 @@ errxit: /* * During the time we spent in the loop above, some other events * might have been queued by the poll callback. We re-insert them - * here (in case they are not already queued, or they're one-shot). + * inside the main ready-list here. */ for (nepi = ep->ovflist; (epi = nepi) != NULL; - nepi = epi->next, epi->next = EP_UNACTIVE_PTR) { - if (!ep_is_linked(&epi->rdllink) && - (epi->event.events & ~EP_PRIVATE_BITS)) - list_add_tail(&epi->rdllink, &ep->rdllist); - } + nepi = epi->next, epi->next = EP_UNACTIVE_PTR) + list_add_tail(&epi->rdllink, &ep->rdllist); /* * We need to set back ep->ovflist to EP_UNACTIVE_PTR, so that after * releasing the lock, events will be queued in the normal way inside @@ -1041,25 +1038,27 @@ retry: } /* - * It opens an eventpoll file descriptor. The "size" parameter is there - * for historical reasons, when epoll was using an hash instead of an - * RB tree. With the current implementation, the "size" parameter is ignored - * (besides sanity checks). + * Open an eventpoll file descriptor. */ -asmlinkage long sys_epoll_create(int size) +asmlinkage long sys_epoll_create1(int flags) { int error, fd = -1; struct eventpoll *ep; + /* Check the EPOLL_* constant for consistency. */ + BUILD_BUG_ON(EPOLL_CLOEXEC != O_CLOEXEC); + + if (flags & ~EPOLL_CLOEXEC) + 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; } @@ -1068,17 +1067,26 @@ asmlinkage long sys_epoll_create(int size) * Creates all the items needed to setup an eventpoll file. That is, * a file structure and a free file descriptor. */ - fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep); + fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep, + flags & O_CLOEXEC); if (fd < 0) ep_free(ep); 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) +{ + if (size < 0) + return -EINVAL; + + return sys_epoll_create1(0); +} + /* * The following function implements the controller interface for * the eventpoll file that enables the insertion/removal/change of