alloc.c File Reference

#include <linux/fs.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/swap.h>
#include <linux/quotaops.h>
#include <linux/blkdev.h>
#include <cluster/masklog.h>
#include "ocfs2.h"
#include "alloc.h"
#include "aops.h"
#include "blockcheck.h"
#include "dlmglue.h"
#include "extent_map.h"
#include "inode.h"
#include "journal.h"
#include "localalloc.h"
#include "suballoc.h"
#include "sysfile.h"
#include "file.h"
#include "super.h"
#include "uptodate.h"
#include "xattr.h"
#include "refcounttree.h"
#include "ocfs2_trace.h"
#include "buffer_head_io.h"

Go to the source code of this file.

Data Structures
struct	ocfs2_extent_tree_operations
struct	ocfs2_insert_type
struct	ocfs2_merge_ctxt
struct	find_path_data
struct	ocfs2_cached_block_free
struct	ocfs2_per_slot_free_list

Macros
#define	OCFS2_TRUNCATE_LOG_FLUSH_INTERVAL   (2 * HZ)

Typedefs
typedef void(	path_insert_t )(void *, struct buffer_head *)

Enumerations
enum	ocfs2_contig_type { CONTIG_NONE = 0, CONTIG_LEFT, CONTIG_RIGHT, CONTIG_LEFTRIGHT }
enum	ocfs2_append_type { APPEND_NONE = 0, APPEND_TAIL }
enum	ocfs2_split_type { SPLIT_NONE = 0, SPLIT_LEFT, SPLIT_RIGHT }

Functions
void	ocfs2_init_dinode_extent_tree (struct ocfs2_extent_tree *et, struct ocfs2_caching_info *ci, struct buffer_head *bh)
void	ocfs2_init_xattr_tree_extent_tree (struct ocfs2_extent_tree *et, struct ocfs2_caching_info *ci, struct buffer_head *bh)
void	ocfs2_init_xattr_value_extent_tree (struct ocfs2_extent_tree *et, struct ocfs2_caching_info *ci, struct ocfs2_xattr_value_buf *vb)
void	ocfs2_init_dx_root_extent_tree (struct ocfs2_extent_tree *et, struct ocfs2_caching_info *ci, struct buffer_head *bh)
void	ocfs2_init_refcount_extent_tree (struct ocfs2_extent_tree *et, struct ocfs2_caching_info *ci, struct buffer_head *bh)
void	ocfs2_reinit_path (struct ocfs2_path *path, int keep_root)
void	ocfs2_free_path (struct ocfs2_path *path)
struct ocfs2_path *	ocfs2_new_path_from_path (struct ocfs2_path *path)
struct ocfs2_path *	ocfs2_new_path_from_et (struct ocfs2_extent_tree *et)
int	ocfs2_path_bh_journal_access (handle_t *handle, struct ocfs2_caching_info *ci, struct ocfs2_path *path, int idx)
int	ocfs2_journal_access_path (struct ocfs2_caching_info *ci, handle_t *handle, struct ocfs2_path *path)
int	ocfs2_search_extent_list (struct ocfs2_extent_list *el, u32 v_cluster)
int	ocfs2_read_extent_block (struct ocfs2_caching_info *ci, u64 eb_blkno, struct buffer_head **bh)
int	ocfs2_num_free_extents (struct ocfs2_super *osb, struct ocfs2_extent_tree *et)
int	ocfs2_find_subtree_root (struct ocfs2_extent_tree *et, struct ocfs2_path *left, struct ocfs2_path *right)
int	ocfs2_find_path (struct ocfs2_caching_info *ci, struct ocfs2_path *path, u32 cpos)
int	ocfs2_find_leaf (struct ocfs2_caching_info *ci, struct ocfs2_extent_list *root_el, u32 cpos, struct buffer_head **leaf_bh)
int	ocfs2_find_cpos_for_left_leaf (struct super_block *sb, struct ocfs2_path *path, u32 *cpos)
int	ocfs2_find_cpos_for_right_leaf (struct super_block *sb, struct ocfs2_path *path, u32 *cpos)
int	ocfs2_insert_extent (handle_t *handle, struct ocfs2_extent_tree *et, u32 cpos, u64 start_blk, u32 new_clusters, u8 flags, struct ocfs2_alloc_context *meta_ac)
int	ocfs2_add_clusters_in_btree (handle_t *handle, struct ocfs2_extent_tree *et, u32 *logical_offset, u32 clusters_to_add, int mark_unwritten, struct ocfs2_alloc_context *data_ac, struct ocfs2_alloc_context *meta_ac, enum ocfs2_alloc_restarted *reason_ret)
int	ocfs2_split_extent (handle_t *handle, struct ocfs2_extent_tree *et, struct ocfs2_path *path, int split_index, struct ocfs2_extent_rec *split_rec, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc)
int	ocfs2_change_extent_flag (handle_t *handle, struct ocfs2_extent_tree *et, u32 cpos, u32 len, u32 phys, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc, int new_flags, int clear_flags)
int	ocfs2_mark_extent_written (struct inode *inode, struct ocfs2_extent_tree *et, handle_t *handle, u32 cpos, u32 len, u32 phys, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc)
int	ocfs2_remove_extent (handle_t *handle, struct ocfs2_extent_tree *et, u32 cpos, u32 len, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc)
int	ocfs2_remove_btree_range (struct inode *inode, struct ocfs2_extent_tree *et, u32 cpos, u32 phys_cpos, u32 len, int flags, struct ocfs2_cached_dealloc_ctxt *dealloc, u64 refcount_loc)
int	ocfs2_truncate_log_needs_flush (struct ocfs2_super *osb)
int	ocfs2_truncate_log_append (struct ocfs2_super *osb, handle_t *handle, u64 start_blk, unsigned int num_clusters)
int	__ocfs2_flush_truncate_log (struct ocfs2_super *osb)
int	ocfs2_flush_truncate_log (struct ocfs2_super *osb)
void	ocfs2_schedule_truncate_log_flush (struct ocfs2_super *osb, int cancel)
int	ocfs2_begin_truncate_log_recovery (struct ocfs2_super *osb, int slot_num, struct ocfs2_dinode **tl_copy)
int	ocfs2_complete_truncate_log_recovery (struct ocfs2_super *osb, struct ocfs2_dinode *tl_copy)
void	ocfs2_truncate_log_shutdown (struct ocfs2_super *osb)
int	ocfs2_truncate_log_init (struct ocfs2_super *osb)
int	ocfs2_cache_cluster_dealloc (struct ocfs2_cached_dealloc_ctxt *ctxt, u64 blkno, unsigned int bit)
int	ocfs2_run_deallocs (struct ocfs2_super *osb, struct ocfs2_cached_dealloc_ctxt *ctxt)
int	ocfs2_cache_block_dealloc (struct ocfs2_cached_dealloc_ctxt *ctxt, int type, int slot, u64 suballoc, u64 blkno, unsigned int bit)
void	ocfs2_map_and_dirty_page (struct inode *inode, handle_t *handle, unsigned int from, unsigned int to, struct page *page, int zero, u64 *phys)
int	ocfs2_grab_pages (struct inode *inode, loff_t start, loff_t end, struct page **pages, int *num)
int	ocfs2_zero_range_for_truncate (struct inode *inode, handle_t *handle, u64 range_start, u64 range_end)
void	ocfs2_dinode_new_extent_list (struct inode *inode, struct ocfs2_dinode *di)
void	ocfs2_set_inode_data_inline (struct inode *inode, struct ocfs2_dinode *di)
int	ocfs2_convert_inline_data_to_extents (struct inode *inode, struct buffer_head *di_bh)
int	ocfs2_commit_truncate (struct ocfs2_super *osb, struct inode *inode, struct buffer_head *di_bh)
int	ocfs2_truncate_inline (struct inode *inode, struct buffer_head *di_bh, unsigned int start, unsigned int end, int trunc)
int	ocfs2_trim_fs (struct super_block *sb, struct fstrim_range *range)

Macro Definition Documentation

#define OCFS2_TRUNCATE_LOG_FLUSH_INTERVAL   (2 * HZ)

Definition at line 6028 of file alloc.c.

Typedef Documentation

typedef void( path_insert_t)(void *, struct buffer_head *)

Definition at line 1767 of file alloc.c.

Enumeration Type Documentation

enum ocfs2_append_type

Enumerator:

APPEND_NONE
APPEND_TAIL

Definition at line 858 of file alloc.c.

enum ocfs2_contig_type

Enumerator:

CONTIG_NONE
CONTIG_LEFT
CONTIG_RIGHT
CONTIG_LEFTRIGHT

Definition at line 57 of file alloc.c.

enum ocfs2_split_type

Enumerator:

SPLIT_NONE
SPLIT_LEFT
SPLIT_RIGHT

Definition at line 863 of file alloc.c.

Function Documentation

int __ocfs2_flush_truncate_log

(

struct ocfs2_super *

osb

)

Definition at line 5928 of file alloc.c.

int ocfs2_add_clusters_in_btree	(	handle_t *	handle,
		struct ocfs2_extent_tree *	et,
		u32 *	logical_offset,
		u32	clusters_to_add,
		int	mark_unwritten,
		struct ocfs2_alloc_context *	data_ac,
		struct ocfs2_alloc_context *	meta_ac,
		enum ocfs2_alloc_restarted *	reason_ret
	)

Definition at line 4735 of file alloc.c.

int ocfs2_begin_truncate_log_recovery	(	struct ocfs2_super *	osb,
		int	slot_num,
		struct ocfs2_dinode **	tl_copy
	)

Definition at line 6078 of file alloc.c.

int ocfs2_cache_block_dealloc	(	struct ocfs2_cached_dealloc_ctxt *	ctxt,
		int	type,
		int	slot,
		u64	suballoc,
		u64	blkno,
		unsigned int	bit
	)

Definition at line 6509 of file alloc.c.

int ocfs2_cache_cluster_dealloc	(	struct ocfs2_cached_dealloc_ctxt *	ctxt,
		u64	blkno,
		unsigned int	bit
	)

Definition at line 6365 of file alloc.c.

int ocfs2_change_extent_flag	(	handle_t *	handle,
		struct ocfs2_extent_tree *	et,
		u32	cpos,
		u32	len,
		u32	phys,
		struct ocfs2_alloc_context *	meta_ac,
		struct ocfs2_cached_dealloc_ctxt *	dealloc,
		int	new_flags,
		int	clear_flags
	)

Definition at line 5092 of file alloc.c.

int ocfs2_commit_truncate	(	struct ocfs2_super *	osb,
		struct inode *	inode,
		struct buffer_head *	di_bh
	)

Definition at line 6963 of file alloc.c.

int ocfs2_complete_truncate_log_recovery	(	struct ocfs2_super *	osb,
		struct ocfs2_dinode *	tl_copy
	)

Definition at line 6146 of file alloc.c.

int ocfs2_convert_inline_data_to_extents	(	struct inode *	inode,
		struct buffer_head *	di_bh
	)

Definition at line 6805 of file alloc.c.

void ocfs2_dinode_new_extent_list	(	struct inode *	inode,
		struct ocfs2_dinode *	di
	)

Definition at line 6775 of file alloc.c.

int ocfs2_find_cpos_for_left_leaf	(	struct super_block *	sb,
		struct ocfs2_path *	path,
		u32 *	cpos
	)

Definition at line 2205 of file alloc.c.

int ocfs2_find_cpos_for_right_leaf	(	struct super_block *	sb,
		struct ocfs2_path *	path,
		u32 *	cpos
	)

Definition at line 2820 of file alloc.c.

int ocfs2_find_leaf	(	struct ocfs2_caching_info *	ci,
		struct ocfs2_extent_list *	root_el,
		u32	cpos,
		struct buffer_head **	leaf_bh
	)

Definition at line 1917 of file alloc.c.

int ocfs2_find_path	(	struct ocfs2_caching_info *	ci,
		struct ocfs2_path *	path,
		u32	cpos
	)

Definition at line 1885 of file alloc.c.

int ocfs2_find_subtree_root	(	struct ocfs2_extent_tree *	et,
		struct ocfs2_path *	left,
		struct ocfs2_path *	right
	)

Definition at line 1737 of file alloc.c.

int ocfs2_flush_truncate_log

(

struct ocfs2_super *

osb

)

Definition at line 6002 of file alloc.c.

void ocfs2_free_path

(

struct ocfs2_path *

path

)

Definition at line 609 of file alloc.c.

int ocfs2_grab_pages	(	struct inode *	inode,
		loff_t	start,
		loff_t	end,
		struct page **	pages,
		int *	num
	)

Definition at line 6634 of file alloc.c.

void ocfs2_init_dinode_extent_tree	(	struct ocfs2_extent_tree *	et,
		struct ocfs2_caching_info *	ci,
		struct buffer_head *	bh
	)

Definition at line 458 of file alloc.c.

void ocfs2_init_dx_root_extent_tree	(	struct ocfs2_extent_tree *	et,
		struct ocfs2_caching_info *	ci,
		struct buffer_head *	bh
	)

Definition at line 482 of file alloc.c.

void ocfs2_init_refcount_extent_tree	(	struct ocfs2_extent_tree *	et,
		struct ocfs2_caching_info *	ci,
		struct buffer_head *	bh
	)

Definition at line 490 of file alloc.c.

void ocfs2_init_xattr_tree_extent_tree	(	struct ocfs2_extent_tree *	et,
		struct ocfs2_caching_info *	ci,
		struct buffer_head *	bh
	)

Definition at line 466 of file alloc.c.

void ocfs2_init_xattr_value_extent_tree	(	struct ocfs2_extent_tree *	et,
		struct ocfs2_caching_info *	ci,
		struct ocfs2_xattr_value_buf *	vb
	)

Definition at line 474 of file alloc.c.

int ocfs2_insert_extent	(	handle_t *	handle,
		struct ocfs2_extent_tree *	et,
		u32	cpos,
		u64	start_blk,
		u32	new_clusters,
		u8	flags,
		struct ocfs2_alloc_context *	meta_ac
	)

Definition at line 4665 of file alloc.c.

int ocfs2_journal_access_path	(	struct ocfs2_caching_info *	ci,
		handle_t *	handle,
		struct ocfs2_path *	path
	)

Definition at line 746 of file alloc.c.

void ocfs2_map_and_dirty_page	(	struct inode *	inode,
		handle_t *	handle,
		unsigned int	from,
		unsigned int	to,
		struct page *	page,
		int	zero,
		u64 *	phys
	)

Definition at line 6564 of file alloc.c.

int ocfs2_mark_extent_written	(	struct inode *	inode,
		struct ocfs2_extent_tree *	et,
		handle_t *	handle,
		u32	cpos,
		u32	len,
		u32	phys,
		struct ocfs2_alloc_context *	meta_ac,
		struct ocfs2_cached_dealloc_ctxt *	dealloc
	)

Definition at line 5181 of file alloc.c.

struct ocfs2_path* ocfs2_new_path_from_et ( struct ocfs2_extent_tree *  et )

read

Definition at line 713 of file alloc.c.

struct ocfs2_path* ocfs2_new_path_from_path ( struct ocfs2_path *  path )

read

Definition at line 707 of file alloc.c.

int ocfs2_num_free_extents	(	struct ocfs2_super *	osb,
		struct ocfs2_extent_tree *	et
	)

Definition at line 959 of file alloc.c.

int ocfs2_path_bh_journal_access	(	handle_t *	handle,
		struct ocfs2_caching_info *	ci,
		struct ocfs2_path *	path,
		int	idx
	)

Definition at line 726 of file alloc.c.

int ocfs2_read_extent_block	(	struct ocfs2_caching_info *	ci,
		u64	eb_blkno,
		struct buffer_head **	bh
	)

Definition at line 939 of file alloc.c.

void ocfs2_reinit_path	(	struct ocfs2_path *	path,
		int	keep_root
	)

Definition at line 580 of file alloc.c.

int ocfs2_remove_btree_range	(	struct inode *	inode,
		struct ocfs2_extent_tree *	et,
		u32	cpos,
		u32	phys_cpos,
		u32	len,
		int	flags,
		struct ocfs2_cached_dealloc_ctxt *	dealloc,
		u64	refcount_loc
	)

Definition at line 5636 of file alloc.c.

int ocfs2_remove_extent	(	handle_t *	handle,
		struct ocfs2_extent_tree *	et,
		u32	cpos,
		u32	len,
		struct ocfs2_alloc_context *	meta_ac,
		struct ocfs2_cached_dealloc_ctxt *	dealloc
	)

Definition at line 5445 of file alloc.c.

int ocfs2_run_deallocs	(	struct ocfs2_super *	osb,
		struct ocfs2_cached_dealloc_ctxt *	ctxt
	)

Definition at line 6440 of file alloc.c.

void ocfs2_schedule_truncate_log_flush	(	struct ocfs2_super *	osb,
		int	cancel
	)

Definition at line 6029 of file alloc.c.

int ocfs2_search_extent_list	(	struct ocfs2_extent_list *	el,
		u32	v_cluster
	)

Definition at line 773 of file alloc.c.

void ocfs2_set_inode_data_inline	(	struct inode *	inode,
		struct ocfs2_dinode *	di
	)

Definition at line 6785 of file alloc.c.

int ocfs2_split_extent	(	handle_t *	handle,
		struct ocfs2_extent_tree *	et,
		struct ocfs2_path *	path,
		int	split_index,
		struct ocfs2_extent_rec *	split_rec,
		struct ocfs2_alloc_context *	meta_ac,
		struct ocfs2_cached_dealloc_ctxt *	dealloc
	)

Definition at line 4997 of file alloc.c.

int ocfs2_trim_fs	(	struct super_block *	sb,
		struct fstrim_range *	range
	)

Definition at line 7249 of file alloc.c.

int ocfs2_truncate_inline	(	struct inode *	inode,
		struct buffer_head *	di_bh,
		unsigned int	start,
		unsigned int	end,
		int	trunc
	)

Definition at line 7117 of file alloc.c.

int ocfs2_truncate_log_append	(	struct ocfs2_super *	osb,
		handle_t *	handle,
		u64	start_blk,
		unsigned int	num_clusters
	)

Definition at line 5780 of file alloc.c.

int ocfs2_truncate_log_init

(

struct ocfs2_super *

osb

)

Definition at line 6222 of file alloc.c.

int ocfs2_truncate_log_needs_flush

(

struct ocfs2_super *

osb

)

Definition at line 5747 of file alloc.c.

void ocfs2_truncate_log_shutdown

(

struct ocfs2_super *

osb

)

Definition at line 6204 of file alloc.c.

int ocfs2_zero_range_for_truncate	(	struct inode *	inode,
		handle_t *	handle,
		u64	range_start,
		u64	range_end
	)

Definition at line 6691 of file alloc.c.