linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.

 * All Rights Reserved.

 */

#include "xfs.h"

#include "xfs_fs.h"

#include "xfs_format.h"

#include "xfs_log_format.h"

#include "xfs_trans_resv.h"

#include "xfs_bit.h"

#include "xfs_mount.h"

#include "xfs_trans.h"

#include "xfs_trans_priv.h"

#include "xfs_buf_item.h"

#include "xfs_extfree_item.h"

#include "xfs_log.h"

#include "xfs_btree.h"

#include "xfs_rmap.h"

​

​

kmem_zone_t *xfs_efi_zone;

kmem_zone_t *xfs_efd_zone;

​

static inline struct xfs_efi_log_item *EFI_ITEM(struct xfs_log_item *lip)

{

    return container_of(lip, struct xfs_efi_log_item, efi_item);

}

​

void

xfs_efi_item_free(

    struct xfs_efi_log_item *efip)

{

    kmem_free(efip->efi_item.li_lv_shadow);

    if (efip->efi_format.efi_nextents > XFS_EFI_MAX_FAST_EXTENTS)

        kmem_free(efip);

    else

        kmem_zone_free(xfs_efi_zone, efip);

}

​

/*

 * Freeing the efi requires that we remove it from the AIL if it has already

 * been placed there. However, the EFI may not yet have been placed in the AIL

 * when called by xfs_efi_release() from EFD processing due to the ordering of

 * committed vs unpin operations in bulk insert operations. Hence the reference

 * count to ensure only the last caller frees the EFI.

 */

void

xfs_efi_release(

    struct xfs_efi_log_item *efip)

{

    ASSERT(atomic_read(&efip->efi_refcount) > 0);

    if (atomic_dec_and_test(&efip->efi_refcount)) {

        xfs_trans_ail_remove(&efip->efi_item, SHUTDOWN_LOG_IO_ERROR);

        xfs_efi_item_free(efip);

    }

}

​

/*

 * This returns the number of iovecs needed to log the given efi item.

 * We only need 1 iovec for an efi item.  It just logs the efi_log_format

 * structure.

 */