Linux-Fsdevel Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>, Avi Kivity <avi@scylladb.com>,
linux-aio@kvack.org, linux-fsdevel@vger.kernel.org,
netdev@vger.kernel.org, linux-api@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 03/32] fs: introduce new ->get_poll_head and ->poll_mask methods
Date: Thu, 11 Jan 2018 09:28:13 +0100 [thread overview]
Message-ID: <20180111082813.GA760@lst.de> (raw)
In-Reply-To: <20180111052200.GJ13338@ZenIV.linux.org.uk>
On Thu, Jan 11, 2018 at 05:22:00AM +0000, Al Viro wrote:
> Whee... The very first ->poll() instance in alphabetic order on pathnames:
> in arch/cris/arch-v10/drivers/gpio.c
>
> static __poll_t gpio_poll(struct file *file, poll_table *wait)
> {
> __poll_t mask = 0;
> struct gpio_private *priv = file->private_data;
> unsigned long data;
> unsigned long flags;
>
> spin_lock_irqsave(&gpio_lock, flags);
>
> poll_wait(file, &priv->alarm_wq, wait);
>
> IOW, we are doing poll_wait() (== possible GFP_KERNEL __get_free_page()) under
> a spinlock...
Yes. Another god reason to separate poll_wait and the actual
event check callback..
next prev parent reply other threads:[~2018-01-11 8:28 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-10 15:58 aio poll, io_pgetevents and a new in-kernel poll API V2 Christoph Hellwig
2018-01-10 15:58 ` [PATCH 01/32] fs: update documentation for __poll_t Christoph Hellwig
2018-01-10 15:58 ` [PATCH 02/32] fs: add new vfs_poll and file_can_poll helpers Christoph Hellwig
2018-01-10 15:58 ` [PATCH 03/32] fs: introduce new ->get_poll_head and ->poll_mask methods Christoph Hellwig
2018-01-10 21:04 ` Al Viro
2018-01-11 5:22 ` Al Viro
2018-01-11 8:28 ` Christoph Hellwig [this message]
2018-01-11 11:32 ` Christoph Hellwig
2018-01-11 11:36 ` Christoph Hellwig
2018-01-11 17:47 ` Al Viro
2018-01-12 9:06 ` Christoph Hellwig
2018-01-17 16:05 ` Christoph Hellwig
2018-01-10 15:58 ` [PATCH 04/32] net: refactor socket_poll Christoph Hellwig
2018-01-10 15:58 ` [PATCH 05/32] net: add support for ->poll_mask in proto_ops Christoph Hellwig
2018-01-10 15:58 ` [PATCH 06/32] net: remove sock_no_poll Christoph Hellwig
2018-01-10 15:58 ` [PATCH 07/32] net/tcp: convert to ->poll_mask Christoph Hellwig
2018-01-10 15:58 ` [PATCH 08/32] net/unix: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 09/32] net: convert datagram_poll users tp ->poll_mask Christoph Hellwig
2018-01-10 15:58 ` [PATCH 10/32] net/dccp: convert to ->poll_mask Christoph Hellwig
2018-01-10 15:58 ` [PATCH 11/32] net/atm: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 12/32] net/vmw_vsock: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 13/32] net/tipc: " Christoph Hellwig
2018-01-10 19:32 ` Jon Maloy
2018-01-10 15:58 ` [PATCH 14/32] net/sctp: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 15/32] net/bluetooth: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 16/32] net/caif: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 17/32] net/nfc: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 18/32] net/phonet: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 19/32] net/iucv: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 20/32] net/rxrpc: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 21/32] pipe: " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 22/32] eventfd: switch " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 23/32] timerfd: convert " Christoph Hellwig
2018-01-10 15:58 ` [PATCH 24/32] aio: don't print the page size at boot time Christoph Hellwig
2018-01-10 15:58 ` [PATCH 25/32] aio: remove an outdated comment in aio_complete Christoph Hellwig
2018-01-10 15:58 ` [PATCH 26/32] aio: refactor read/write iocb setup Christoph Hellwig
2018-01-10 21:19 ` Jeff Moyer
2018-01-11 13:38 ` Christoph Hellwig
2018-01-10 15:58 ` [PATCH 27/32] aio: sanitize ki_list handling Christoph Hellwig
2018-01-10 21:29 ` Jeff Moyer
2018-01-10 15:58 ` [PATCH 28/32] aio: simplify cancellation Christoph Hellwig
2018-01-10 22:50 ` Jeff Moyer
2018-01-10 15:58 ` [PATCH 29/32] aio: delete iocbs from the active_reqs list in kiocb_cancel Christoph Hellwig
2018-01-10 22:52 ` Jeff Moyer
2018-01-10 15:58 ` [PATCH 30/32] aio: add delayed cancel support Christoph Hellwig
2018-01-10 22:59 ` Jeff Moyer
2018-01-10 23:26 ` Jeff Moyer
2018-01-11 13:43 ` Christoph Hellwig
2018-01-11 15:27 ` Jeff Moyer
2018-01-15 8:54 ` Christoph Hellwig
2018-01-10 15:58 ` [PATCH 31/32] aio: implement IOCB_CMD_POLL Christoph Hellwig
2018-01-10 15:58 ` [PATCH 32/32] aio: implement io_pgetevents Christoph Hellwig
2018-01-12 20:44 ` Jeff Moyer
2018-01-15 8:53 ` Christoph Hellwig
2018-01-16 12:04 ` Christoph Hellwig
2018-01-17 0:41 ` Jeff Moyer
2018-01-17 4:27 ` Al Viro
2018-01-17 7:08 ` Christoph Hellwig
2018-01-17 13:49 ` Jeff Moyer
2018-01-17 7:36 ` Christoph Hellwig
2018-01-17 13:51 ` Jeff Moyer
2018-01-10 22:36 ` aio poll, io_pgetevents and a new in-kernel poll API V2 Michael Kerrisk (man-pages)
2018-01-10 23:34 ` Jeff Moyer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180111082813.GA760@lst.de \
--to=hch@lst.de \
--cc=avi@scylladb.com \
--cc=linux-aio@kvack.org \
--cc=linux-api@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=viro@ZenIV.linux.org.uk \
--subject='Re: [PATCH 03/32] fs: introduce new ->get_poll_head and ->poll_mask methods' \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).