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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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e4b963f10e
ocfs2 sometimes needs to block signals around dlm operations, but it currently does it with sigprocmask(). Even worse, it's checking the error code of sigprocmask(). The in-kernel sigprocmask() can only error if you get the SIG_* argument wrong. We don't. Wrap the sigprocmask() calls with ocfs2_[un]block_signals(). These functions are void, but they will BUG() if somehow sigprocmask() returns an error. Signed-off-by: Joel Becker <joel.becker@oracle.com>
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* super.h
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*
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* Function prototypes
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*
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* Copyright (C) 2002, 2004 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef OCFS2_SUPER_H
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#define OCFS2_SUPER_H
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extern struct workqueue_struct *ocfs2_wq;
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int ocfs2_publish_get_mount_state(struct ocfs2_super *osb,
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int node_num);
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void __ocfs2_error(struct super_block *sb,
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const char *function,
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const char *fmt, ...)
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__attribute__ ((format (printf, 3, 4)));
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#define ocfs2_error(sb, fmt, args...) __ocfs2_error(sb, __PRETTY_FUNCTION__, fmt, ##args)
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void __ocfs2_abort(struct super_block *sb,
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const char *function,
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const char *fmt, ...)
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__attribute__ ((format (printf, 3, 4)));
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#define ocfs2_abort(sb, fmt, args...) __ocfs2_abort(sb, __PRETTY_FUNCTION__, fmt, ##args)
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/*
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* Void signal blockers, because in-kernel sigprocmask() only fails
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* when SIG_* is wrong.
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*/
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void ocfs2_block_signals(sigset_t *oldset);
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void ocfs2_unblock_signals(sigset_t *oldset);
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#endif /* OCFS2_SUPER_H */
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