saner FASYNC handling on file close

As it is, all instances of ->release() for files that have ->fasync()
need to remember to evict file from fasync lists; forgetting that
creates a hole and we actually have a bunch that *does* forget.

So let's keep our lives simple - let __fput() check FASYNC in
file->f_flags and call ->fasync() there if it's been set.  And lose that
crap in ->release() instances - leaving it there is still valid, but we
don't have to bother anymore.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 5 deletions

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index ada4605d1223..6543a5547c84 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -1995,11 +1995,6 @@ pfm_close(struct inode *inode, struct file *filp)
                 return -EBADF;
         }
 
-        if (filp->f_flags & FASYNC) {
-                DPRINT(("cleaning up async_queue=%p\n", ctx->ctx_async_queue));
-                pfm_do_fasync(-1, filp, ctx, 0);
-        }
-
         PROTECT_CTX(ctx, flags);
 
         state     = ctx->ctx_state;