suballoc.c File Reference

#include <linux/fs.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/highmem.h>
#include <cluster/masklog.h>
#include "ocfs2.h"
#include "alloc.h"
#include "blockcheck.h"
#include "dlmglue.h"
#include "inode.h"
#include "journal.h"
#include "localalloc.h"
#include "suballoc.h"
#include "super.h"
#include "sysfile.h"
#include "uptodate.h"
#include "ocfs2_trace.h"
#include "buffer_head_io.h"

Go to the source code of this file.

Data Structures
struct	ocfs2_suballoc_result

Macros
#define	NOT_ALLOC_NEW_GROUP   0
#define	ALLOC_NEW_GROUP   0x1
#define	ALLOC_GROUPS_FROM_GLOBAL   0x2
#define	OCFS2_MAX_TO_STEAL   1024
#define	do_error(fmt,...)

Functions
void	ocfs2_free_ac_resource (struct ocfs2_alloc_context *ac)
void	ocfs2_free_alloc_context (struct ocfs2_alloc_context *ac)
int	ocfs2_check_group_descriptor (struct super_block *sb, struct ocfs2_dinode *di, struct buffer_head *bh)
int	ocfs2_read_group_descriptor (struct inode *inode, struct ocfs2_dinode *di, u64 gd_blkno, struct buffer_head **bh)
void	ocfs2_init_steal_slots (struct ocfs2_super *osb)
int	ocfs2_reserve_new_metadata_blocks (struct ocfs2_super *osb, int blocks, struct ocfs2_alloc_context **ac)
int	ocfs2_reserve_new_metadata (struct ocfs2_super *osb, struct ocfs2_extent_list *root_el, struct ocfs2_alloc_context **ac)
int	ocfs2_reserve_new_inode (struct ocfs2_super *osb, struct ocfs2_alloc_context **ac)
int	ocfs2_reserve_cluster_bitmap_bits (struct ocfs2_super *osb, struct ocfs2_alloc_context *ac)
int	ocfs2_reserve_clusters (struct ocfs2_super *osb, u32 bits_wanted, struct ocfs2_alloc_context **ac)
int	ocfs2_claim_metadata (handle_t *handle, struct ocfs2_alloc_context *ac, u32 bits_wanted, u64 *suballoc_loc, u16 *suballoc_bit_start, unsigned int *num_bits, u64 *blkno_start)
int	ocfs2_find_new_inode_loc (struct inode *dir, struct buffer_head *parent_fe_bh, struct ocfs2_alloc_context *ac, u64 *fe_blkno)
int	ocfs2_claim_new_inode_at_loc (handle_t *handle, struct inode *dir, struct ocfs2_alloc_context *ac, u64 *suballoc_loc, u16 *suballoc_bit, u64 di_blkno)
int	ocfs2_claim_new_inode (handle_t *handle, struct inode *dir, struct buffer_head *parent_fe_bh, struct ocfs2_alloc_context *ac, u64 *suballoc_loc, u16 *suballoc_bit, u64 *fe_blkno)
u64	ocfs2_which_cluster_group (struct inode *inode, u32 cluster)
int	__ocfs2_claim_clusters (handle_t *handle, struct ocfs2_alloc_context *ac, u32 min_clusters, u32 max_clusters, u32 *cluster_start, u32 *num_clusters)
int	ocfs2_claim_clusters (handle_t *handle, struct ocfs2_alloc_context *ac, u32 min_clusters, u32 *cluster_start, u32 *num_clusters)
int	ocfs2_free_suballoc_bits (handle_t *handle, struct inode *alloc_inode, struct buffer_head *alloc_bh, unsigned int start_bit, u64 bg_blkno, unsigned int count)
int	ocfs2_free_dinode (handle_t *handle, struct inode *inode_alloc_inode, struct buffer_head *inode_alloc_bh, struct ocfs2_dinode *di)
int	ocfs2_free_clusters (handle_t *handle, struct inode *bitmap_inode, struct buffer_head *bitmap_bh, u64 start_blk, unsigned int num_clusters)
int	ocfs2_release_clusters (handle_t *handle, struct inode *bitmap_inode, struct buffer_head *bitmap_bh, u64 start_blk, unsigned int num_clusters)
int	ocfs2_lock_allocators (struct inode *inode, struct ocfs2_extent_tree *et, u32 clusters_to_add, u32 extents_to_split, struct ocfs2_alloc_context **data_ac, struct ocfs2_alloc_context **meta_ac)
int	ocfs2_test_inode_bit (struct ocfs2_super *osb, u64 blkno, int *res)

Macro Definition Documentation

#define ALLOC_GROUPS_FROM_GLOBAL   0x2

Definition at line 52 of file suballoc.c.

#define ALLOC_NEW_GROUP   0x1

Definition at line 51 of file suballoc.c.

#define do_error	(		fmt,
			...
	)

Value:

do{                             \
        if (resize)                 \
            mlog(ML_ERROR, fmt "\n", ##__VA_ARGS__);    \
		else							\
			ocfs2_error(sb, fmt, ##__VA_ARGS__);     \
    } while (0)

Definition at line 175 of file suballoc.c.

#define NOT_ALLOC_NEW_GROUP   0

Definition at line 50 of file suballoc.c.

#define OCFS2_MAX_TO_STEAL   1024

Definition at line 54 of file suballoc.c.

Function Documentation

int __ocfs2_claim_clusters	(	handle_t *	handle,
		struct ocfs2_alloc_context *	ac,
		u32	min_clusters,
		u32	max_clusters,
		u32 *	cluster_start,
		u32 *	num_clusters
	)

Definition at line 2294 of file suballoc.c.

int ocfs2_check_group_descriptor	(	struct super_block *	sb,
		struct ocfs2_dinode *	di,
		struct buffer_head *	bh
	)

Definition at line 278 of file suballoc.c.

int ocfs2_claim_clusters	(	handle_t *	handle,
		struct ocfs2_alloc_context *	ac,
		u32	min_clusters,
		u32 *	cluster_start,
		u32 *	num_clusters
	)

Definition at line 2365 of file suballoc.c.

int ocfs2_claim_metadata	(	handle_t *	handle,
		struct ocfs2_alloc_context *	ac,
		u32	bits_wanted,
		u64 *	suballoc_loc,
		u16 *	suballoc_bit_start,
		unsigned int *	num_bits,
		u64 *	blkno_start
	)

Definition at line 1987 of file suballoc.c.

int ocfs2_claim_new_inode	(	handle_t *	handle,
		struct inode *	dir,
		struct buffer_head *	parent_fe_bh,
		struct ocfs2_alloc_context *	ac,
		u64 *	suballoc_loc,
		u16 *	suballoc_bit,
		u64 *	fe_blkno
	)

Definition at line 2190 of file suballoc.c.

int ocfs2_claim_new_inode_at_loc	(	handle_t *	handle,
		struct inode *	dir,
		struct ocfs2_alloc_context *	ac,
		u64 *	suballoc_loc,
		u16 *	suballoc_bit,
		u64	di_blkno
	)

Definition at line 2121 of file suballoc.c.

int ocfs2_find_new_inode_loc	(	struct inode *	dir,
		struct buffer_head *	parent_fe_bh,
		struct ocfs2_alloc_context *	ac,
		u64 *	fe_blkno
	)

Definition at line 2060 of file suballoc.c.

void ocfs2_free_ac_resource

(

struct ocfs2_alloc_context *

ac

)

Definition at line 142 of file suballoc.c.

void ocfs2_free_alloc_context

(

struct ocfs2_alloc_context *

ac

)

Definition at line 164 of file suballoc.c.

int ocfs2_free_clusters	(	handle_t *	handle,
		struct inode *	bitmap_inode,
		struct buffer_head *	bitmap_bh,
		u64	start_blk,
		unsigned int	num_clusters
	)

Definition at line 2583 of file suballoc.c.

int ocfs2_free_dinode	(	handle_t *	handle,
		struct inode *	inode_alloc_inode,
		struct buffer_head *	inode_alloc_bh,
		struct ocfs2_dinode *	di
	)

Definition at line 2522 of file suballoc.c.

int ocfs2_free_suballoc_bits	(	handle_t *	handle,
		struct inode *	alloc_inode,
		struct buffer_head *	alloc_bh,
		unsigned int	start_bit,
		u64	bg_blkno,
		unsigned int	count
	)

Definition at line 2511 of file suballoc.c.

void ocfs2_init_steal_slots

(

struct ocfs2_super *

osb

)

Definition at line 909 of file suballoc.c.

int ocfs2_lock_allocators	(	struct inode *	inode,
		struct ocfs2_extent_tree *	et,
		u32	clusters_to_add,
		u32	extents_to_split,
		struct ocfs2_alloc_context **	data_ac,
		struct ocfs2_alloc_context **	meta_ac
	)

Definition at line 2666 of file suballoc.c.

int ocfs2_read_group_descriptor	(	struct inode *	inode,
		struct ocfs2_dinode *	di,
		u64	gd_blkno,
		struct buffer_head **	bh
	)

Definition at line 332 of file suballoc.c.

int ocfs2_release_clusters	(	handle_t *	handle,
		struct inode *	bitmap_inode,
		struct buffer_head *	bitmap_bh,
		u64	start_blk,
		unsigned int	num_clusters
	)

Definition at line 2598 of file suballoc.c.

int ocfs2_reserve_cluster_bitmap_bits	(	struct ocfs2_super *	osb,
		struct ocfs2_alloc_context *	ac
	)

Definition at line 1159 of file suballoc.c.

int ocfs2_reserve_clusters	(	struct ocfs2_super *	osb,
		u32	bits_wanted,
		struct ocfs2_alloc_context **	ac
	)

Definition at line 1233 of file suballoc.c.

int ocfs2_reserve_new_inode	(	struct ocfs2_super *	osb,
		struct ocfs2_alloc_context **	ac
	)

Definition at line 1065 of file suballoc.c.

int ocfs2_reserve_new_metadata	(	struct ocfs2_super *	osb,
		struct ocfs2_extent_list *	root_el,
		struct ocfs2_alloc_context **	ac
	)

Definition at line 1056 of file suballoc.c.

int ocfs2_reserve_new_metadata_blocks	(	struct ocfs2_super *	osb,
		int	blocks,
		struct ocfs2_alloc_context **	ac
	)

Definition at line 994 of file suballoc.c.

int ocfs2_test_inode_bit	(	struct ocfs2_super *	osb,
		u64	blkno,
		int *	res
	)

Definition at line 2856 of file suballoc.c.

u64 ocfs2_which_cluster_group	(	struct inode *	inode,
		u32	cluster
	)

Definition at line 2252 of file suballoc.c.