From: Peter Zijlstra <peterz@infradead.org>
To: David Howells <dhowells@redhat.com>
Cc: linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 07/15] Add wait_var_event_interruptible()
Date: Wed, 15 May 2019 19:30:43 +0200 [thread overview]
Message-ID: <20190515173043.GA2589@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <155793758837.31671.13765813674309502991.stgit@warthog.procyon.org.uk>
On Wed, May 15, 2019 at 05:26:28PM +0100, David Howells wrote:
> Add wait_var_event_interruptible() to allow interruptible waits for events.
>
> Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> ---
>
> include/linux/wait_bit.h | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/include/linux/wait_bit.h b/include/linux/wait_bit.h
> index 2b0072fa5e92..7dec36aecbd9 100644
> --- a/include/linux/wait_bit.h
> +++ b/include/linux/wait_bit.h
> @@ -305,6 +305,19 @@ do { \
> __ret; \
> })
>
> +#define __wait_var_event_interruptible(var, condition) \
> + ___wait_var_event(var, condition, TASK_INTERRUPTIBLE, 0, 0, \
> + schedule())
> +
> +#define wait_var_event_interruptible(var, condition) \
> +({ \
> + int __ret = 0; \
> + might_sleep(); \
> + if (!(condition)) \
> + __ret = __wait_var_event_interruptible(var, condition); \
> + __ret; \
> +})
> +
> /**
> * clear_and_wake_up_bit - clear a bit and wake up anyone waiting on that bit
> *
>
next prev parent reply other threads:[~2019-05-15 17:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-15 16:25 [PATCH 00/15] AFS fixes David Howells
2019-05-15 16:25 ` [PATCH 01/15] afs: Fix key leak in afs_release() and afs_evict_inode() David Howells
2019-05-15 16:25 ` [PATCH 02/15] afs: Fix incorrect error handling in afs_xattr_get_acl() David Howells
2019-05-15 16:26 ` [PATCH 03/15] afs: Fix afs_xattr_get_yfs() to not try freeing an error value David Howells
2019-05-15 16:26 ` [PATCH 04/15] afs: Fix missing lock when replacing VL server list David Howells
2019-05-15 16:26 ` [PATCH 05/15] afs: Fix afs_cell records to always have a VL server list record David Howells
2019-05-15 16:26 ` [PATCH 06/15] dns_resolver: Allow used keys to be invalidated David Howells
2019-05-15 16:26 ` [PATCH 07/15] Add wait_var_event_interruptible() David Howells
2019-05-15 17:30 ` Peter Zijlstra [this message]
2019-05-15 16:26 ` [PATCH 08/15] afs: Fix cell DNS lookup David Howells
2019-05-15 16:26 ` [PATCH 09/15] rxrpc: Allow the kernel to mark a call as being non-interruptible David Howells
2019-05-15 16:26 ` [PATCH 10/15] afs: Make some RPC operations non-interruptible David Howells
2019-05-15 16:26 ` [PATCH 11/15] afs: Make dynamic root population wait uninterruptibly for proc_cells_lock David Howells
2019-05-15 16:27 ` [PATCH 12/15] afs: Fix calculation of callback expiry time David Howells
2019-05-15 16:27 ` [PATCH 13/15] afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set David Howells
2019-05-15 16:27 ` [PATCH 14/15] afs: Fix lock-wait/callback-break double locking David Howells
2019-05-15 16:27 ` [PATCH 15/15] afs: Fix double inc of vnode->cb_break David Howells
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