From: Andi Kleen <andi@firstfloor.org>
To: linux-kernel@vger.kernel.org
Cc: Andi Kleen <ak@linux.intel.com>, viro@zeniv.linux.org.uk
Subject: [PATCH 09/11] epoll: Remove unnecessary error path
Date: Mon, 30 Sep 2013 13:29:10 -0700 [thread overview]
Message-ID: <1380572952-30729-10-git-send-email-andi@firstfloor.org> (raw)
In-Reply-To: <1380572952-30729-1-git-send-email-andi@firstfloor.org>
From: Andi Kleen <ak@linux.intel.com>
A static checker was pointing out that nothing can possible set
nwait < 0 in this path. The comment and the check appears to be
outdated. Remove it.
Cc: viro@zeniv.linux.org.uk
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
fs/eventpoll.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 473e09d..f72bf55 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1276,15 +1276,6 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
*/
revents = ep_item_poll(epi, &epq.pt);
- /*
- * We have to check if something went wrong during the poll wait queue
- * install process. Namely an allocation for a wait queue failed due
- * high memory pressure.
- */
- error = -ENOMEM;
- if (epi->nwait < 0)
- goto error_unregister;
-
/* Add the current item to the list of active epoll hook for this file */
spin_lock(&tfile->f_lock);
list_add_tail(&epi->fllink, &tfile->f_ep_links);
@@ -1334,7 +1325,6 @@ error_remove_epi:
rb_erase(&epi->rbn, &ep->rbr);
-error_unregister:
ep_unregister_pollwait(ep, epi);
/*
--
1.8.3.1
next prev parent reply other threads:[~2013-09-30 20:30 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 20:29 Various static checker fixes Andi Kleen
2013-09-30 20:29 ` [PATCH 01/11] random: don't feed stack data into pool when interrupt regs NULL Andi Kleen
2013-09-30 20:51 ` Luck, Tony
2013-10-01 12:44 ` Theodore Ts'o
2014-04-04 16:54 ` Sebastian Andrzej Siewior
2014-04-07 4:01 ` Theodore Ts'o
2014-04-07 19:30 ` Sebastian Andrzej Siewior
2014-04-07 23:26 ` Theodore Ts'o
2014-04-09 18:14 ` rkuo
2013-09-30 20:29 ` [PATCH 02/11] Disable initialized_var for clang Andi Kleen
2013-09-30 20:29 ` [PATCH 03/11] posix-timers: Initialize timer value to 0 for invalid timers Andi Kleen
2013-09-30 20:29 ` [PATCH 04/11] block: Return error code of elevator init function Andi Kleen
2013-10-01 12:25 ` Jeff Moyer
2013-09-30 20:29 ` [PATCH 05/11] seq_file: Handle ->next error in seq_read Andi Kleen
2013-09-30 20:29 ` [PATCH 06/11] sysctl: remove unnecessary variable initialization Andi Kleen
2013-09-30 20:29 ` [PATCH 07/11] igb: Avoid uninitialized advertised variable in eee_set_cur Andi Kleen
2013-10-01 15:00 ` Wyborny, Carolyn
2013-10-01 23:10 ` Jeff Kirsher
2013-10-02 20:33 ` David Miller
2013-09-30 20:29 ` [PATCH 08/11] ext4: Fix end of group handling in ext4_mb_init_cache Andi Kleen
2013-10-01 12:45 ` Theodore Ts'o
2013-10-01 14:20 ` Andi Kleen
2013-09-30 20:29 ` Andi Kleen [this message]
2013-09-30 20:59 ` [PATCH 09/11] epoll: Remove unnecessary error path Eric Wong
2013-09-30 21:01 ` Andi Kleen
2013-09-30 20:29 ` [PATCH 10/11] tcp: Always set options to 0 before calling tcp_established_options Andi Kleen
2013-10-02 20:33 ` David Miller
2013-09-30 20:29 ` [PATCH 11/11] perf: Avoid uninitialized sample type reference in __perf_event__output_id_sample Andi Kleen
2013-10-02 8:57 ` Peter Zijlstra
2013-10-02 17:25 ` Andi Kleen
2013-10-02 17:36 ` Peter Zijlstra
2013-10-03 6:42 ` Ingo Molnar
2013-10-03 18:16 ` Andi Kleen
2013-10-04 6:24 ` Ingo Molnar
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