mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 14:11:52 +00:00
fa60ce2cb4
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>
210 lines
6.7 KiB
C
210 lines
6.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* dlmglue.h
|
|
*
|
|
* description here
|
|
*
|
|
* Copyright (C) 2002, 2004 Oracle. All rights reserved.
|
|
*/
|
|
|
|
|
|
#ifndef DLMGLUE_H
|
|
#define DLMGLUE_H
|
|
|
|
#include "dcache.h"
|
|
|
|
#define OCFS2_LVB_VERSION 5
|
|
|
|
struct ocfs2_meta_lvb {
|
|
__u8 lvb_version;
|
|
__u8 lvb_reserved0;
|
|
__be16 lvb_idynfeatures;
|
|
__be32 lvb_iclusters;
|
|
__be32 lvb_iuid;
|
|
__be32 lvb_igid;
|
|
__be64 lvb_iatime_packed;
|
|
__be64 lvb_ictime_packed;
|
|
__be64 lvb_imtime_packed;
|
|
__be64 lvb_isize;
|
|
__be16 lvb_imode;
|
|
__be16 lvb_inlink;
|
|
__be32 lvb_iattr;
|
|
__be32 lvb_igeneration;
|
|
__be32 lvb_reserved2;
|
|
};
|
|
|
|
#define OCFS2_QINFO_LVB_VERSION 1
|
|
|
|
struct ocfs2_qinfo_lvb {
|
|
__u8 lvb_version;
|
|
__u8 lvb_reserved[3];
|
|
__be32 lvb_bgrace;
|
|
__be32 lvb_igrace;
|
|
__be32 lvb_syncms;
|
|
__be32 lvb_blocks;
|
|
__be32 lvb_free_blk;
|
|
__be32 lvb_free_entry;
|
|
};
|
|
|
|
#define OCFS2_ORPHAN_LVB_VERSION 1
|
|
|
|
struct ocfs2_orphan_scan_lvb {
|
|
__u8 lvb_version;
|
|
__u8 lvb_reserved[3];
|
|
__be32 lvb_os_seqno;
|
|
};
|
|
|
|
#define OCFS2_TRIMFS_LVB_VERSION 1
|
|
|
|
struct ocfs2_trim_fs_lvb {
|
|
__u8 lvb_version;
|
|
__u8 lvb_success;
|
|
__u8 lvb_reserved[2];
|
|
__be32 lvb_nodenum;
|
|
__be64 lvb_start;
|
|
__be64 lvb_len;
|
|
__be64 lvb_minlen;
|
|
__be64 lvb_trimlen;
|
|
};
|
|
|
|
struct ocfs2_trim_fs_info {
|
|
u8 tf_valid; /* lvb is valid, or not */
|
|
u8 tf_success; /* trim is successful, or not */
|
|
u32 tf_nodenum; /* osb node number */
|
|
u64 tf_start; /* trim start offset in clusters */
|
|
u64 tf_len; /* trim end offset in clusters */
|
|
u64 tf_minlen; /* trim minimum contiguous free clusters */
|
|
u64 tf_trimlen; /* trimmed length in bytes */
|
|
};
|
|
|
|
struct ocfs2_lock_holder {
|
|
struct list_head oh_list;
|
|
struct pid *oh_owner_pid;
|
|
int oh_ex;
|
|
};
|
|
|
|
/* ocfs2_inode_lock_full() 'arg_flags' flags */
|
|
/* don't wait on recovery. */
|
|
#define OCFS2_META_LOCK_RECOVERY (0x01)
|
|
/* Instruct the dlm not to queue ourselves on the other node. */
|
|
#define OCFS2_META_LOCK_NOQUEUE (0x02)
|
|
/* don't block waiting for the downconvert thread, instead return -EAGAIN */
|
|
#define OCFS2_LOCK_NONBLOCK (0x04)
|
|
/* just get back disk inode bh if we've got cluster lock. */
|
|
#define OCFS2_META_LOCK_GETBH (0x08)
|
|
|
|
/* Locking subclasses of inode cluster lock */
|
|
enum {
|
|
OI_LS_NORMAL = 0,
|
|
OI_LS_PARENT,
|
|
OI_LS_RENAME1,
|
|
OI_LS_RENAME2,
|
|
OI_LS_REFLINK_TARGET,
|
|
};
|
|
|
|
int ocfs2_dlm_init(struct ocfs2_super *osb);
|
|
void ocfs2_dlm_shutdown(struct ocfs2_super *osb, int hangup_pending);
|
|
void ocfs2_lock_res_init_once(struct ocfs2_lock_res *res);
|
|
void ocfs2_inode_lock_res_init(struct ocfs2_lock_res *res,
|
|
enum ocfs2_lock_type type,
|
|
unsigned int generation,
|
|
struct inode *inode);
|
|
void ocfs2_dentry_lock_res_init(struct ocfs2_dentry_lock *dl,
|
|
u64 parent, struct inode *inode);
|
|
struct ocfs2_file_private;
|
|
void ocfs2_file_lock_res_init(struct ocfs2_lock_res *lockres,
|
|
struct ocfs2_file_private *fp);
|
|
struct ocfs2_mem_dqinfo;
|
|
void ocfs2_qinfo_lock_res_init(struct ocfs2_lock_res *lockres,
|
|
struct ocfs2_mem_dqinfo *info);
|
|
void ocfs2_refcount_lock_res_init(struct ocfs2_lock_res *lockres,
|
|
struct ocfs2_super *osb, u64 ref_blkno,
|
|
unsigned int generation);
|
|
void ocfs2_lock_res_free(struct ocfs2_lock_res *res);
|
|
int ocfs2_create_new_inode_locks(struct inode *inode);
|
|
int ocfs2_drop_inode_locks(struct inode *inode);
|
|
int ocfs2_rw_lock(struct inode *inode, int write);
|
|
int ocfs2_try_rw_lock(struct inode *inode, int write);
|
|
void ocfs2_rw_unlock(struct inode *inode, int write);
|
|
int ocfs2_open_lock(struct inode *inode);
|
|
int ocfs2_try_open_lock(struct inode *inode, int write);
|
|
void ocfs2_open_unlock(struct inode *inode);
|
|
int ocfs2_inode_lock_atime(struct inode *inode,
|
|
struct vfsmount *vfsmnt,
|
|
int *level, int wait);
|
|
int ocfs2_inode_lock_full_nested(struct inode *inode,
|
|
struct buffer_head **ret_bh,
|
|
int ex,
|
|
int arg_flags,
|
|
int subclass);
|
|
int ocfs2_inode_lock_with_page(struct inode *inode,
|
|
struct buffer_head **ret_bh,
|
|
int ex,
|
|
struct page *page);
|
|
/* Variants without special locking class or flags */
|
|
#define ocfs2_inode_lock_full(i, r, e, f)\
|
|
ocfs2_inode_lock_full_nested(i, r, e, f, OI_LS_NORMAL)
|
|
#define ocfs2_inode_lock_nested(i, b, e, s)\
|
|
ocfs2_inode_lock_full_nested(i, b, e, 0, s)
|
|
/* 99% of the time we don't want to supply any additional flags --
|
|
* those are for very specific cases only. */
|
|
#define ocfs2_inode_lock(i, b, e) ocfs2_inode_lock_full_nested(i, b, e, 0, OI_LS_NORMAL)
|
|
#define ocfs2_try_inode_lock(i, b, e)\
|
|
ocfs2_inode_lock_full_nested(i, b, e, OCFS2_META_LOCK_NOQUEUE,\
|
|
OI_LS_NORMAL)
|
|
void ocfs2_inode_unlock(struct inode *inode,
|
|
int ex);
|
|
int ocfs2_super_lock(struct ocfs2_super *osb,
|
|
int ex);
|
|
void ocfs2_super_unlock(struct ocfs2_super *osb,
|
|
int ex);
|
|
int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno);
|
|
void ocfs2_orphan_scan_unlock(struct ocfs2_super *osb, u32 seqno);
|
|
|
|
int ocfs2_rename_lock(struct ocfs2_super *osb);
|
|
void ocfs2_rename_unlock(struct ocfs2_super *osb);
|
|
int ocfs2_nfs_sync_lock(struct ocfs2_super *osb, int ex);
|
|
void ocfs2_nfs_sync_unlock(struct ocfs2_super *osb, int ex);
|
|
void ocfs2_trim_fs_lock_res_init(struct ocfs2_super *osb);
|
|
void ocfs2_trim_fs_lock_res_uninit(struct ocfs2_super *osb);
|
|
int ocfs2_trim_fs_lock(struct ocfs2_super *osb,
|
|
struct ocfs2_trim_fs_info *info, int trylock);
|
|
void ocfs2_trim_fs_unlock(struct ocfs2_super *osb,
|
|
struct ocfs2_trim_fs_info *info);
|
|
int ocfs2_dentry_lock(struct dentry *dentry, int ex);
|
|
void ocfs2_dentry_unlock(struct dentry *dentry, int ex);
|
|
int ocfs2_file_lock(struct file *file, int ex, int trylock);
|
|
void ocfs2_file_unlock(struct file *file);
|
|
int ocfs2_qinfo_lock(struct ocfs2_mem_dqinfo *oinfo, int ex);
|
|
void ocfs2_qinfo_unlock(struct ocfs2_mem_dqinfo *oinfo, int ex);
|
|
struct ocfs2_refcount_tree;
|
|
int ocfs2_refcount_lock(struct ocfs2_refcount_tree *ref_tree, int ex);
|
|
void ocfs2_refcount_unlock(struct ocfs2_refcount_tree *ref_tree, int ex);
|
|
|
|
|
|
void ocfs2_mark_lockres_freeing(struct ocfs2_super *osb,
|
|
struct ocfs2_lock_res *lockres);
|
|
void ocfs2_simple_drop_lockres(struct ocfs2_super *osb,
|
|
struct ocfs2_lock_res *lockres);
|
|
|
|
/* for the downconvert thread */
|
|
void ocfs2_wake_downconvert_thread(struct ocfs2_super *osb);
|
|
|
|
struct ocfs2_dlm_debug *ocfs2_new_dlm_debug(void);
|
|
void ocfs2_put_dlm_debug(struct ocfs2_dlm_debug *dlm_debug);
|
|
|
|
/* To set the locking protocol on module initialization */
|
|
void ocfs2_set_locking_protocol(void);
|
|
|
|
/* The _tracker pair is used to avoid cluster recursive locking */
|
|
int ocfs2_inode_lock_tracker(struct inode *inode,
|
|
struct buffer_head **ret_bh,
|
|
int ex,
|
|
struct ocfs2_lock_holder *oh);
|
|
void ocfs2_inode_unlock_tracker(struct inode *inode,
|
|
int ex,
|
|
struct ocfs2_lock_holder *oh,
|
|
int had_lock);
|
|
|
|
#endif /* DLMGLUE_H */
|