From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751815AbdH3PAV (ORCPT ); Wed, 30 Aug 2017 11:00:21 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:40376 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751323AbdH3PAS (ORCPT ); Wed, 30 Aug 2017 11:00:18 -0400 From: Christoph Hellwig To: viro@zeniv.linux.org.uk Cc: arve@android.com, riandrews@android.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/16] autofs4: switch autofs4_write to __kernel_write Date: Wed, 30 Aug 2017 16:59:53 +0200 Message-Id: <20170830150007.3953-3-hch@lst.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170830150007.3953-1-hch@lst.de> References: <20170830150007.3953-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Instead of playing games with the address limit.. Signed-off-by: Christoph Hellwig --- fs/autofs4/waitq.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c index 24a58bf9ca72..4ac49d038bf3 100644 --- a/fs/autofs4/waitq.c +++ b/fs/autofs4/waitq.c @@ -56,19 +56,14 @@ static int autofs4_write(struct autofs_sb_info *sbi, struct file *file, const void *addr, int bytes) { unsigned long sigpipe, flags; - mm_segment_t fs; const char *data = (const char *)addr; ssize_t wr = 0; sigpipe = sigismember(¤t->pending.signal, SIGPIPE); - /* Save pointer to user space and point back to kernel space */ - fs = get_fs(); - set_fs(KERNEL_DS); - mutex_lock(&sbi->pipe_mutex); while (bytes) { - wr = __vfs_write(file, data, bytes, &file->f_pos); + wr = __kernel_write(file, data, bytes, &file->f_pos); if (wr <= 0) break; data += wr; @@ -76,8 +71,6 @@ static int autofs4_write(struct autofs_sb_info *sbi, } mutex_unlock(&sbi->pipe_mutex); - set_fs(fs); - /* Keep the currently executing process from receiving a * SIGPIPE unless it was already supposed to get one */ -- 2.11.0