linux-stable/fs/ocfs2/uptodate.h
Masahiro Yamada fa60ce2cb4 treewide: remove editor modelines and cruft
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>
2021-05-07 00:26:34 -07:00

68 lines
2.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* uptodate.h
*
* Cluster uptodate tracking
*
* Copyright (C) 2002, 2004, 2005 Oracle. All rights reserved.
*/
#ifndef OCFS2_UPTODATE_H
#define OCFS2_UPTODATE_H
/*
* The caching code relies on locking provided by the user of
* struct ocfs2_caching_info. These operations connect that up.
*/
struct ocfs2_caching_operations {
/*
* A u64 representing the owning structure. Usually this
* is the block number (i_blkno or whatnot). This is used so
* that caching log messages can identify the owning structure.
*/
u64 (*co_owner)(struct ocfs2_caching_info *ci);
/* The superblock is needed during I/O. */
struct super_block *(*co_get_super)(struct ocfs2_caching_info *ci);
/*
* Lock and unlock the caching data. These will not sleep, and
* should probably be spinlocks.
*/
void (*co_cache_lock)(struct ocfs2_caching_info *ci);
void (*co_cache_unlock)(struct ocfs2_caching_info *ci);
/*
* Lock and unlock for disk I/O. These will sleep, and should
* be mutexes.
*/
void (*co_io_lock)(struct ocfs2_caching_info *ci);
void (*co_io_unlock)(struct ocfs2_caching_info *ci);
};
int __init init_ocfs2_uptodate_cache(void);
void exit_ocfs2_uptodate_cache(void);
void ocfs2_metadata_cache_init(struct ocfs2_caching_info *ci,
const struct ocfs2_caching_operations *ops);
void ocfs2_metadata_cache_purge(struct ocfs2_caching_info *ci);
void ocfs2_metadata_cache_exit(struct ocfs2_caching_info *ci);
u64 ocfs2_metadata_cache_owner(struct ocfs2_caching_info *ci);
void ocfs2_metadata_cache_io_lock(struct ocfs2_caching_info *ci);
void ocfs2_metadata_cache_io_unlock(struct ocfs2_caching_info *ci);
int ocfs2_buffer_uptodate(struct ocfs2_caching_info *ci,
struct buffer_head *bh);
void ocfs2_set_buffer_uptodate(struct ocfs2_caching_info *ci,
struct buffer_head *bh);
void ocfs2_set_new_buffer_uptodate(struct ocfs2_caching_info *ci,
struct buffer_head *bh);
void ocfs2_remove_from_cache(struct ocfs2_caching_info *ci,
struct buffer_head *bh);
void ocfs2_remove_xattr_clusters_from_cache(struct ocfs2_caching_info *ci,
sector_t block,
u32 c_len);
int ocfs2_buffer_read_ahead(struct ocfs2_caching_info *ci,
struct buffer_head *bh);
#endif /* OCFS2_UPTODATE_H */