[PATCH] f_count may wrap around

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

diff --git a/fs/aio.c b/fs/aio.c
index 0fb3117..f658441 100644 (file)
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -512,8 +512,8 @@ static void aio_fput_routine(struct work_struct *data)
  */
 static int __aio_put_req(struct kioctx *ctx, struct kiocb *req)
 {
-       dprintk(KERN_DEBUG "aio_put(%p): f_count=%d\n",
-               req, atomic_read(&req->ki_filp->f_count));
+       dprintk(KERN_DEBUG "aio_put(%p): f_count=%ld\n",
+               req, atomic_long_read(&req->ki_filp->f_count));
 
        assert_spin_locked(&ctx->ctx_lock);
 
@@ -528,7 +528,7 @@ static int __aio_put_req(struct kioctx *ctx, struct kiocb *req)
        /* Must be done under the lock to serialise against cancellation.
         * Call this aio_fput as it duplicates fput via the fput_work.
         */
-       if (unlikely(atomic_dec_and_test(&req->ki_filp->f_count))) {
+       if (unlikely(atomic_long_dec_and_test(&req->ki_filp->f_count))) {
                get_ioctx(ctx);
                spin_lock(&fput_lock);
                list_add(&req->ki_list, &fput_head);
@@ -586,7 +586,6 @@ static void use_mm(struct mm_struct *mm)
        struct task_struct *tsk = current;
 
        task_lock(tsk);
-       tsk->flags |= PF_BORROWED_MM;
        active_mm = tsk->active_mm;
        atomic_inc(&mm->mm_count);
        tsk->mm = mm;
@@ -610,7 +609,6 @@ static void unuse_mm(struct mm_struct *mm)
        struct task_struct *tsk = current;
 
        task_lock(tsk);
-       tsk->flags &= ~PF_BORROWED_MM;
        tsk->mm = NULL;
        /* active_mm is still 'mm' */
        enter_lazy_tlb(mm, tsk);