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c405a7a35c
Avoid calling dbuf_evict_one() from memory reclaim contexts (e.g. Linux kswapd, FreeBSD pagedaemon). This prevents deadlock caused by reclaim threads waiting for the dbuf hash lock in the call sequence: dbuf_evict_one -> dbuf_destroy -> arc_buf_destroy Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com> Signed-off-by: Kaitlin Hoang <kthoang@amazon.com> Closes #17561
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
// SPDX-License-Identifier: CDDL-1.0
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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#ifndef _OS_LINUX_SPL_MISC_H
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#define _OS_LINUX_SPL_MISC_H
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#include <linux/kobject.h>
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#include <linux/swap.h>
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extern void spl_signal_kobj_evt(struct block_device *bdev);
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/*
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* Check if the current thread is a memory reclaim thread.
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*/
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extern int current_is_reclaim_thread(void);
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#endif
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