refcounttree.c File Reference

#include <linux/sort.h>
#include <cluster/masklog.h>
#include "ocfs2.h"
#include "inode.h"
#include "alloc.h"
#include "suballoc.h"
#include "journal.h"
#include "uptodate.h"
#include "super.h"
#include "buffer_head_io.h"
#include "blockcheck.h"
#include "refcounttree.h"
#include "sysfile.h"
#include "dlmglue.h"
#include "extent_map.h"
#include "aops.h"
#include "xattr.h"
#include "namei.h"
#include "ocfs2_trace.h"
#include <linux/bio.h>
#include <linux/blkdev.h>
#include <linux/slab.h>
#include <linux/writeback.h>
#include <linux/pagevec.h>
#include <linux/swap.h>
#include <linux/security.h>
#include <linux/fsnotify.h>
#include <linux/quotaops.h>
#include <linux/namei.h>
#include <linux/mount.h>

Go to the source code of this file.

Data Structures
struct	ocfs2_cow_context

Macros
#define	MAX_CONTIG_BYTES   1048576

Enumerations
enum	ocfs2_ref_rec_contig { REF_CONTIG_NONE = 0, REF_CONTIG_LEFT, REF_CONTIG_RIGHT, REF_CONTIG_LEFTRIGHT }

Functions
int	ocfs2_lock_refcount_tree (struct ocfs2_super *osb, u64 ref_blkno, int rw, struct ocfs2_refcount_tree **ret_tree, struct buffer_head **ref_bh)
void	ocfs2_unlock_refcount_tree (struct ocfs2_super *osb, struct ocfs2_refcount_tree *tree, int rw)
void	ocfs2_purge_refcount_trees (struct ocfs2_super *osb)
int	ocfs2_remove_refcount_tree (struct inode *inode, struct buffer_head *di_bh)
int	ocfs2_try_remove_refcount_tree (struct inode *inode, struct buffer_head *di_bh)
int	ocfs2_increase_refcount (handle_t *handle, struct ocfs2_caching_info *ci, struct buffer_head *ref_root_bh, u64 cpos, u32 len, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc)
int	ocfs2_decrease_refcount (struct inode *inode, handle_t *handle, u32 cpos, u32 len, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc, int delete)
int	ocfs2_prepare_refcount_change_for_del (struct inode *inode, u64 refcount_loc, u64 phys_blkno, u32 clusters, int *credits, int *ref_blocks)
int	ocfs2_duplicate_clusters_by_page (handle_t *handle, struct file *file, u32 cpos, u32 old_cluster, u32 new_cluster, u32 new_len)
int	ocfs2_duplicate_clusters_by_jbd (handle_t *handle, struct file *file, u32 cpos, u32 old_cluster, u32 new_cluster, u32 new_len)
int	ocfs2_cow_sync_writeback (struct super_block *sb, struct inode *inode, u32 cpos, u32 num_clusters)
int	ocfs2_refcount_cow (struct inode *inode, struct file *file, struct buffer_head *di_bh, u32 cpos, u32 write_len, u32 max_cpos)
int	ocfs2_refcounted_xattr_delete_need (struct inode *inode, struct ocfs2_caching_info *ref_ci, struct buffer_head *ref_root_bh, struct ocfs2_xattr_value_root *xv, int *meta_add, int *credits)
int	ocfs2_refcount_cow_xattr (struct inode *inode, struct ocfs2_dinode *di, struct ocfs2_xattr_value_buf *vb, struct ocfs2_refcount_tree *ref_tree, struct buffer_head *ref_root_bh, u32 cpos, u32 write_len, struct ocfs2_post_refcount *post)
int	ocfs2_add_refcount_flag (struct inode *inode, struct ocfs2_extent_tree *data_et, struct ocfs2_caching_info *ref_ci, struct buffer_head *ref_root_bh, u32 cpos, u32 p_cluster, u32 num_clusters, struct ocfs2_cached_dealloc_ctxt *dealloc, struct ocfs2_post_refcount *post)
int	ocfs2_reflink_ioctl (struct inode *inode, const char __user *oldname, const char __user *newname, bool preserve)

Macro Definition Documentation

#define MAX_CONTIG_BYTES   1048576

Definition at line 2589 of file refcounttree.c.

Enumeration Type Documentation

enum ocfs2_ref_rec_contig

Enumerator:

REF_CONTIG_NONE
REF_CONTIG_LEFT
REF_CONTIG_RIGHT
REF_CONTIG_LEFTRIGHT

Definition at line 1147 of file refcounttree.c.

Function Documentation

int ocfs2_add_refcount_flag	(	struct inode *	inode,
		struct ocfs2_extent_tree *	data_et,
		struct ocfs2_caching_info *	ref_ci,
		struct buffer_head *	ref_root_bh,
		u32	cpos,
		u32	p_cluster,
		u32	num_clusters,
		struct ocfs2_cached_dealloc_ctxt *	dealloc,
		struct ocfs2_post_refcount *	post
	)

Definition at line 3735 of file refcounttree.c.

int ocfs2_cow_sync_writeback	(	struct super_block *	sb,
		struct inode *	inode,
		u32	cpos,
		u32	num_clusters
	)

Definition at line 3165 of file refcounttree.c.

int ocfs2_decrease_refcount	(	struct inode *	inode,
		handle_t *	handle,
		u32	cpos,
		u32	len,
		struct ocfs2_alloc_context *	meta_ac,
		struct ocfs2_cached_dealloc_ctxt *	dealloc,
		int	delete
	)

Definition at line 2296 of file refcounttree.c.

int ocfs2_duplicate_clusters_by_jbd	(	handle_t *	handle,
		struct file *	file,
		u32	cpos,
		u32	old_cluster,
		u32	new_cluster,
		u32	new_len
	)

Definition at line 3017 of file refcounttree.c.

int ocfs2_duplicate_clusters_by_page	(	handle_t *	handle,
		struct file *	file,
		u32	cpos,
		u32	old_cluster,
		u32	new_cluster,
		u32	new_len
	)

Definition at line 2924 of file refcounttree.c.

int ocfs2_increase_refcount	(	handle_t *	handle,
		struct ocfs2_caching_info *	ci,
		struct buffer_head *	ref_root_bh,
		u64	cpos,
		u32	len,
		struct ocfs2_alloc_context *	meta_ac,
		struct ocfs2_cached_dealloc_ctxt *	dealloc
	)

Definition at line 2162 of file refcounttree.c.

int ocfs2_lock_refcount_tree	(	struct ocfs2_super *	osb,
		u64	ref_blkno,
		int	rw,
		struct ocfs2_refcount_tree **	ret_tree,
		struct buffer_head **	ref_bh
	)

Definition at line 452 of file refcounttree.c.

int ocfs2_prepare_refcount_change_for_del	(	struct inode *	inode,
		u64	refcount_loc,
		u64	phys_blkno,
		u32	clusters,
		int *	credits,
		int *	ref_blocks
	)

Definition at line 2535 of file refcounttree.c.

void ocfs2_purge_refcount_trees

(

struct ocfs2_super *

osb

)

Definition at line 538 of file refcounttree.c.

int ocfs2_refcount_cow	(	struct inode *	inode,
		struct file *	file,
		struct buffer_head *	di_bh,
		u32	cpos,
		u32	write_len,
		u32	max_cpos
	)

Definition at line 3534 of file refcounttree.c.

int ocfs2_refcount_cow_xattr	(	struct inode *	inode,
		struct ocfs2_dinode *	di,
		struct ocfs2_xattr_value_buf *	vb,
		struct ocfs2_refcount_tree *	ref_tree,
		struct buffer_head *	ref_root_bh,
		u32	cpos,
		u32	write_len,
		struct ocfs2_post_refcount *	post
	)

Definition at line 3672 of file refcounttree.c.

int ocfs2_refcounted_xattr_delete_need	(	struct inode *	inode,
		struct ocfs2_caching_info *	ref_ci,
		struct buffer_head *	ref_root_bh,
		struct ocfs2_xattr_value_root *	xv,
		int *	meta_add,
		int *	credits
	)

Definition at line 3587 of file refcounttree.c.

int ocfs2_reflink_ioctl	(	struct inode *	inode,
		const char __user *	oldname,
		const char __user *	newname,
		bool	preserve
	)

Definition at line 4438 of file refcounttree.c.

int ocfs2_remove_refcount_tree	(	struct inode *	inode,
		struct buffer_head *	di_bh
	)

Definition at line 759 of file refcounttree.c.

int ocfs2_try_remove_refcount_tree	(	struct inode *	inode,
		struct buffer_head *	di_bh
	)

Definition at line 928 of file refcounttree.c.

void ocfs2_unlock_refcount_tree	(	struct ocfs2_super *	osb,
		struct ocfs2_refcount_tree *	tree,
		int	rw
	)

Definition at line 526 of file refcounttree.c.