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The existing sigio workaround implementation removes FDs from the poll when events are triggered, requiring users to re-add them via add_sigio_fd() after processing. This introduces a potential race condition between FD removal in write_sigio_thread() and next_poll update in __add_sigio_fd(), and is inefficient due to frequent FD removal and re-addition. Rewrite the implementation based on epoll and tgkill for improved efficiency and reliability. Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com> Link: https://patch.msgid.link/20250315161910.4082396-2-tiwei.btw@antgroup.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
12 lines
210 B
C
12 lines
210 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
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*/
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#ifndef __SIGIO_H__
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#define __SIGIO_H__
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extern void sigio_lock(void);
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extern void sigio_unlock(void);
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#endif
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