>From 6eefa10d92cc35b66a8166cc26472d383b572b0d Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 7 Nov 2011 18:46:39 +0100 Subject: [PATCH 2/2] fs: Make write(2) interruptible by a signal Currently write(2) to a file is not interruptible by a signal. Sometimes this is desirable (e.g. when you want to quickly kill a process hogging your disk or when some process gets blocked in balance_dirty_pages() indefinitely due to a filesystem being in an error condition). Signed-off-by: Jan Kara --- mm/filemap.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index c0018f2..6b01d2f 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2407,6 +2407,10 @@ static ssize_t generic_perform_write(struct file *file, iov_iter_count(i)); again: + if (signal_pending(current)) { + status = -EINTR; + break; + } /* * Bring in the user page that we will copy from _first_. -- 1.7.1