Bluetooth: Add SCO fallback for eSCO connection attempts

[pandora-kernel.git] / fs / eventpoll.c

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 96355d5..011b9b8 100644 (file)
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -234,8 +234,6 @@ struct ep_pqueue {
 /*
  * Configuration options available inside /proc/sys/fs/epoll/
  */
-/* Maximum number of epoll devices, per user */
-static int max_user_instances __read_mostly;
 /* Maximum number of epoll watched descriptors, per user */
 static int max_user_watches __read_mostly;
 
@@ -260,14 +258,6 @@ static struct kmem_cache *pwq_cache __read_mostly;
 static int zero;
 
 ctl_table epoll_table[] = {
-       {
-               .procname       = "max_user_instances",
-               .data           = &max_user_instances,
-               .maxlen         = sizeof(int),
-               .mode           = 0644,
-               .proc_handler   = &proc_dointvec_minmax,
-               .extra1         = &zero,
-       },
        {
                .procname       = "max_user_watches",
                .data           = &max_user_watches,
@@ -491,7 +481,6 @@ static void ep_free(struct eventpoll *ep)
 
        mutex_unlock(&epmutex);
        mutex_destroy(&ep->mtx);
-       atomic_dec(&ep->user->epoll_devs);
        free_uid(ep->user);
        kfree(ep);
 }
@@ -581,10 +570,6 @@ static int ep_alloc(struct eventpoll **pep)
        struct eventpoll *ep;
 
        user = get_current_user();
-       error = -EMFILE;
-       if (unlikely(atomic_read(&user->epoll_devs) >=
-                       max_user_instances))
-               goto free_uid;
        error = -ENOMEM;
        ep = kzalloc(sizeof(*ep), GFP_KERNEL);
        if (unlikely(!ep))
@@ -1110,7 +1095,7 @@ retry:
 /*
  * Open an eventpoll file descriptor.
  */
-asmlinkage long sys_epoll_create1(int flags)
+SYSCALL_DEFINE1(epoll_create1, int, flags)
 {
        int error, fd = -1;
        struct eventpoll *ep;
@@ -1141,7 +1126,6 @@ asmlinkage long sys_epoll_create1(int flags)
                              flags & O_CLOEXEC);
        if (fd < 0)
                ep_free(ep);
-       atomic_inc(&ep->user->epoll_devs);
 
 error_return:
        DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n",
@@ -1150,7 +1134,7 @@ error_return:
        return fd;
 }
 
-asmlinkage long sys_epoll_create(int size)
+SYSCALL_DEFINE1(epoll_create, int, size)
 {
        if (size < 0)
                return -EINVAL;
@@ -1163,8 +1147,8 @@ asmlinkage long sys_epoll_create(int size)
  * the eventpoll file that enables the insertion/removal/change of
  * file descriptors inside the interest set.
  */
-asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
-                             struct epoll_event __user *event)
+SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
+               struct epoll_event __user *, event)
 {
        int error;
        struct file *file, *tfile;
@@ -1261,8 +1245,8 @@ error_return:
  * Implement the event wait interface for the eventpoll file. It is the kernel
  * part of the user space epoll_wait(2).
  */
-asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
-                              int maxevents, int timeout)
+SYSCALL_DEFINE4(epoll_wait, int, epfd, struct epoll_event __user *, events,
+               int, maxevents, int, timeout)
 {
        int error;
        struct file *file;
@@ -1319,9 +1303,9 @@ error_return:
  * Implement the event wait interface for the eventpoll file. It is the kernel
  * part of the user space epoll_pwait(2).
  */
-asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
-               int maxevents, int timeout, const sigset_t __user *sigmask,
-               size_t sigsetsize)
+SYSCALL_DEFINE6(epoll_pwait, int, epfd, struct epoll_event __user *, events,
+               int, maxevents, int, timeout, const sigset_t __user *, sigmask,
+               size_t, sigsetsize)
 {
        int error;
        sigset_t ksigmask, sigsaved;
@@ -1366,8 +1350,10 @@ static int __init eventpoll_init(void)
        struct sysinfo si;
 
        si_meminfo(&si);
-       max_user_instances = 128;
-       max_user_watches = (((si.totalram - si.totalhigh) / 32) << PAGE_SHIFT) /
+       /*
+        * Allows top 4% of lomem to be allocated for epoll watches (per user).
+        */
+       max_user_watches = (((si.totalram - si.totalhigh) / 25) << PAGE_SHIFT) /
                EP_ITEM_COST;
 
        /* Initialize the structure used to perform safe poll wait head wake ups */