state_layout.c File Reference

This file contains functions used in layout management. More...

#include <unistd.h>
#include <sys/types.h>
#include <sys/param.h>
#include <time.h>
#include <pthread.h>
#include <string.h>
#include "LRU_List.h"
#include "log.h"
#include "HashData.h"
#include "HashTable.h"
#include "fsal.h"
#include "sal_functions.h"
#include "nfs_core.h"

Go to the source code of this file.

Functions
state_status_t	state_add_segment (state_t *state, struct pnfs_segment *segment, void *fsal_data, bool_t return_on_close)
	Add a segment to an existing layout state.
state_status_t	state_delete_segment (state_layout_segment_t *segment)
state_status_t	state_lookup_layout_state (cache_entry_t *pentry, state_owner_t *powner, layouttype4 type, state_t **pstate)
	Find pre-existing layouts.

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Detailed Description

This file contains functions used in layout management.

state_layout.c : This file contains functions used in lock management.

Definition in file state_layout.c.

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Function Documentation

state_status_t state_add_segment	(	state_t *	state,
		struct pnfs_segment *	segment,
		void *	fsal_data,
		bool_t	return_on_close
	)

Add a segment to an existing layout state.

This function is intended to be used in nfs41_op_layoutget to add each segment returned by FSAL_layoutget to an existing state of type STATE_TYPE_LAYOUT.

Parameters:

state	[IN] Pointer to the layout state.
segment	[IN] The layout segment itself (as a layout4, specified by RFC5661) granted by the FSAL.
fsal_data	[IN] Pointer to FSAL-specific data for this segment.
segid	[IN] The FSAL-specific, opaque segment ID provided by the FSAL.

Returns:

STATE_SUCCESS on completion, other values of state_status_t on failure.

Definition at line 76 of file state_layout.c.

state_status_t state_delete_segment

(

state_layout_segment_t *

segment

)

Definition at line 119 of file state_layout.c.

state_status_t state_lookup_layout_state	(	cache_entry_t *	pentry,
		state_owner_t *	powner,
		layouttype4	type,
		state_t **	pstate
	)

Find pre-existing layouts.

This function finds a state corresponding to a given file, clientid, and layout type if one exists.

Parameters:

entry	[IN] Cache_inode entry for the file.
owner	[IN] Pointer to the state owner. This must be a clientid owner.
type	[IN] The layout type specified by the client.
state	[OUT] The found state, NULL if not found.

Returns:

STATE_SUCCESS if the layout is found, STATE_NOT_FOUND if it isn't, and an appropriate code if other bad things happen.

Definition at line 144 of file state_layout.c.