From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- fs/ocfs2/ocfs2_lockid.h | 117 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 fs/ocfs2/ocfs2_lockid.h (limited to 'fs/ocfs2/ocfs2_lockid.h') diff --git a/fs/ocfs2/ocfs2_lockid.h b/fs/ocfs2/ocfs2_lockid.h new file mode 100644 index 000000000..8ac357ce6 --- /dev/null +++ b/fs/ocfs2/ocfs2_lockid.h @@ -0,0 +1,117 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * ocfs2_lockid.h + * + * Defines OCFS2 lockid bits. + * + * Copyright (C) 2002, 2005 Oracle. All rights reserved. + */ + +#ifndef OCFS2_LOCKID_H +#define OCFS2_LOCKID_H + +/* lock ids are made up in the following manner: + * name[0] --> type + * name[1-6] --> 6 pad characters, reserved for now + * name[7-22] --> block number, expressed in hex as 16 chars + * name[23-30] --> i_generation, expressed in hex 8 chars + * name[31] --> '\0' */ +#define OCFS2_LOCK_ID_MAX_LEN 32 +#define OCFS2_LOCK_ID_PAD "000000" + +#define OCFS2_DENTRY_LOCK_INO_START 18 + +enum ocfs2_lock_type { + OCFS2_LOCK_TYPE_META = 0, + OCFS2_LOCK_TYPE_DATA, + OCFS2_LOCK_TYPE_SUPER, + OCFS2_LOCK_TYPE_RENAME, + OCFS2_LOCK_TYPE_RW, + OCFS2_LOCK_TYPE_DENTRY, + OCFS2_LOCK_TYPE_OPEN, + OCFS2_LOCK_TYPE_FLOCK, + OCFS2_LOCK_TYPE_QINFO, + OCFS2_LOCK_TYPE_NFS_SYNC, + OCFS2_LOCK_TYPE_ORPHAN_SCAN, + OCFS2_LOCK_TYPE_REFCOUNT, + OCFS2_LOCK_TYPE_TRIM_FS, + OCFS2_NUM_LOCK_TYPES +}; + +static inline char ocfs2_lock_type_char(enum ocfs2_lock_type type) +{ + char c; + switch (type) { + case OCFS2_LOCK_TYPE_META: + c = 'M'; + break; + case OCFS2_LOCK_TYPE_DATA: + c = 'D'; + break; + case OCFS2_LOCK_TYPE_SUPER: + c = 'S'; + break; + case OCFS2_LOCK_TYPE_RENAME: + c = 'R'; + break; + case OCFS2_LOCK_TYPE_RW: + c = 'W'; + break; + case OCFS2_LOCK_TYPE_DENTRY: + c = 'N'; + break; + case OCFS2_LOCK_TYPE_OPEN: + c = 'O'; + break; + case OCFS2_LOCK_TYPE_FLOCK: + c = 'F'; + break; + case OCFS2_LOCK_TYPE_QINFO: + c = 'Q'; + break; + case OCFS2_LOCK_TYPE_NFS_SYNC: + c = 'Y'; + break; + case OCFS2_LOCK_TYPE_ORPHAN_SCAN: + c = 'P'; + break; + case OCFS2_LOCK_TYPE_REFCOUNT: + c = 'T'; + break; + case OCFS2_LOCK_TYPE_TRIM_FS: + c = 'I'; + break; + default: + c = '\0'; + } + + return c; +} + +static char *ocfs2_lock_type_strings[] = { + [OCFS2_LOCK_TYPE_META] = "Meta", + [OCFS2_LOCK_TYPE_DATA] = "Data", + [OCFS2_LOCK_TYPE_SUPER] = "Super", + [OCFS2_LOCK_TYPE_RENAME] = "Rename", + /* Need to differntiate from [R]ename.. serializing writes is the + * important job it does, anyway. */ + [OCFS2_LOCK_TYPE_RW] = "Write/Read", + [OCFS2_LOCK_TYPE_DENTRY] = "Dentry", + [OCFS2_LOCK_TYPE_OPEN] = "Open", + [OCFS2_LOCK_TYPE_FLOCK] = "Flock", + [OCFS2_LOCK_TYPE_QINFO] = "Quota", + [OCFS2_LOCK_TYPE_NFS_SYNC] = "NFSSync", + [OCFS2_LOCK_TYPE_ORPHAN_SCAN] = "OrphanScan", + [OCFS2_LOCK_TYPE_REFCOUNT] = "Refcount", + [OCFS2_LOCK_TYPE_TRIM_FS] = "TrimFs", +}; + +static inline const char *ocfs2_lock_type_string(enum ocfs2_lock_type type) +{ +#ifdef __KERNEL__ + BUG_ON(type >= OCFS2_NUM_LOCK_TYPES); +#endif + return ocfs2_lock_type_strings[type]; +} + +#endif /* OCFS2_LOCKID_H */ -- cgit v1.2.3