fsal_lock.c File Reference

#include "fsal.h"
#include "fsal_internal.h"
#include "fsal_convert.h"

Go to the source code of this file.

Functions
fsal_status_t	LUSTREFSAL_lock_op (fsal_file_t *p_file_descriptor, fsal_handle_t *p_filehandle, fsal_op_context_t *p_context, void *p_owner, fsal_lock_op_t lock_op, fsal_lock_param_t request_lock, fsal_lock_param_t *conflicting_lock)

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Function Documentation

fsal_status_t LUSTREFSAL_lock_op	(	fsal_file_t *	p_file_descriptor,
		fsal_handle_t *	p_filehandle,
		fsal_op_context_t *	p_context,
		void *	p_owner,
		fsal_lock_op_t	lock_op,
		fsal_lock_param_t	request_lock,
		fsal_lock_param_t *	conflicting_lock
	)

LUSTREFSAL_lock_op: Lock/unlock/test an owner independent (anonymous) lock for a region in a file.

Parameters:

p_file_descriptor	(input): File descriptor of the file to lock.
p_filehandle	(input): File handle of the file to lock.
p_context	(input): Context
p_owner	(input): Owner for the requested lock
lock_op	(input): Can be either FSAL_OP_LOCKT, FSAL_OP_LOCK, FSAL_OP_UNLOCK. The operations are test if a file region is locked, lock a file region, unlock a file region.
lock_type	(input): Can be either FSAL_LOCK_R, FSAL_LOCK_W. Either a read lock or write lock.
lock_start	(input): Start of lock region measured as offset of bytes from start of file.
lock_length	(input): Number of bytes to lock.

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR: no error.
• ERR_FSAL_FAULT: One of the in put parameters is NULL.
• ERR_FSAL_PERM: lock_op was FSAL_OP_LOCKT and the result was that the operation would not be possible.

Definition at line 62 of file FSAL_LUSTRE/fsal_lock.c.