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![Masahiro Yamada](/assets/img/avatar_default.png)
The section "19) Editor modelines and other cruft" in Documentation/process/coding-style.rst clearly says, "Do not include any of these in source files." I recently receive a patch to explicitly add a new one. Let's do treewide cleanups, otherwise some people follow the existing code and attempt to upstream their favoriate editor setups. It is even nicer if scripts/checkpatch.pl can check it. If we like to impose coding style in an editor-independent manner, I think editorconfig (patch [1]) is a saner solution. [1] https://lore.kernel.org/lkml/20200703073143.423557-1-danny@kdrag0n.dev/ Link: https://lkml.kernel.org/r/20210324054457.1477489-1-masahiroy@kernel.org Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Miguel Ojeda <ojeda@kernel.org> [auxdisplay] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
117 lines
2.6 KiB
C
117 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* ocfs2_lockid.h
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*
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* Defines OCFS2 lockid bits.
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*
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* Copyright (C) 2002, 2005 Oracle. All rights reserved.
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*/
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#ifndef OCFS2_LOCKID_H
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#define OCFS2_LOCKID_H
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/* lock ids are made up in the following manner:
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* name[0] --> type
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* name[1-6] --> 6 pad characters, reserved for now
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* name[7-22] --> block number, expressed in hex as 16 chars
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* name[23-30] --> i_generation, expressed in hex 8 chars
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* name[31] --> '\0' */
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#define OCFS2_LOCK_ID_MAX_LEN 32
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#define OCFS2_LOCK_ID_PAD "000000"
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#define OCFS2_DENTRY_LOCK_INO_START 18
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enum ocfs2_lock_type {
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OCFS2_LOCK_TYPE_META = 0,
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OCFS2_LOCK_TYPE_DATA,
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OCFS2_LOCK_TYPE_SUPER,
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OCFS2_LOCK_TYPE_RENAME,
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OCFS2_LOCK_TYPE_RW,
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OCFS2_LOCK_TYPE_DENTRY,
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OCFS2_LOCK_TYPE_OPEN,
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OCFS2_LOCK_TYPE_FLOCK,
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OCFS2_LOCK_TYPE_QINFO,
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OCFS2_LOCK_TYPE_NFS_SYNC,
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OCFS2_LOCK_TYPE_ORPHAN_SCAN,
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OCFS2_LOCK_TYPE_REFCOUNT,
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OCFS2_LOCK_TYPE_TRIM_FS,
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OCFS2_NUM_LOCK_TYPES
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};
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static inline char ocfs2_lock_type_char(enum ocfs2_lock_type type)
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{
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char c;
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switch (type) {
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case OCFS2_LOCK_TYPE_META:
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c = 'M';
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break;
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case OCFS2_LOCK_TYPE_DATA:
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c = 'D';
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break;
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case OCFS2_LOCK_TYPE_SUPER:
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c = 'S';
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break;
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case OCFS2_LOCK_TYPE_RENAME:
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c = 'R';
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break;
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case OCFS2_LOCK_TYPE_RW:
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c = 'W';
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break;
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case OCFS2_LOCK_TYPE_DENTRY:
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c = 'N';
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break;
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case OCFS2_LOCK_TYPE_OPEN:
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c = 'O';
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break;
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case OCFS2_LOCK_TYPE_FLOCK:
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c = 'F';
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break;
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case OCFS2_LOCK_TYPE_QINFO:
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c = 'Q';
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break;
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case OCFS2_LOCK_TYPE_NFS_SYNC:
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c = 'Y';
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break;
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case OCFS2_LOCK_TYPE_ORPHAN_SCAN:
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c = 'P';
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break;
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case OCFS2_LOCK_TYPE_REFCOUNT:
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c = 'T';
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break;
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case OCFS2_LOCK_TYPE_TRIM_FS:
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c = 'I';
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break;
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default:
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c = '\0';
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}
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return c;
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}
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static char *ocfs2_lock_type_strings[] = {
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[OCFS2_LOCK_TYPE_META] = "Meta",
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[OCFS2_LOCK_TYPE_DATA] = "Data",
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[OCFS2_LOCK_TYPE_SUPER] = "Super",
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[OCFS2_LOCK_TYPE_RENAME] = "Rename",
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/* Need to differntiate from [R]ename.. serializing writes is the
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* important job it does, anyway. */
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[OCFS2_LOCK_TYPE_RW] = "Write/Read",
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[OCFS2_LOCK_TYPE_DENTRY] = "Dentry",
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[OCFS2_LOCK_TYPE_OPEN] = "Open",
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[OCFS2_LOCK_TYPE_FLOCK] = "Flock",
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[OCFS2_LOCK_TYPE_QINFO] = "Quota",
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[OCFS2_LOCK_TYPE_NFS_SYNC] = "NFSSync",
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[OCFS2_LOCK_TYPE_ORPHAN_SCAN] = "OrphanScan",
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[OCFS2_LOCK_TYPE_REFCOUNT] = "Refcount",
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[OCFS2_LOCK_TYPE_TRIM_FS] = "TrimFs",
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};
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static inline const char *ocfs2_lock_type_string(enum ocfs2_lock_type type)
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{
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#ifdef __KERNEL__
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BUG_ON(type >= OCFS2_NUM_LOCK_TYPES);
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#endif
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return ocfs2_lock_type_strings[type];
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}
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#endif /* OCFS2_LOCKID_H */
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