linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (c) 2000-2006 Silicon Graphics, Inc.

 * All Rights Reserved.

 */

#include <linux/log2.h>

#include <linux/iversion.h>

​

#include "xfs.h"

#include "xfs_fs.h"

#include "xfs_shared.h"

#include "xfs_format.h"

#include "xfs_log_format.h"

#include "xfs_trans_resv.h"

#include "xfs_sb.h"

#include "xfs_mount.h"

#include "xfs_defer.h"

#include "xfs_inode.h"

#include "xfs_da_format.h"

#include "xfs_da_btree.h"

#include "xfs_dir2.h"

#include "xfs_attr_sf.h"

#include "xfs_attr.h"

#include "xfs_trans_space.h"

#include "xfs_trans.h"

#include "xfs_buf_item.h"

#include "xfs_inode_item.h"

#include "xfs_ialloc.h"

#include "xfs_bmap.h"

#include "xfs_bmap_util.h"

#include "xfs_errortag.h"

#include "xfs_error.h"

#include "xfs_quota.h"

#include "xfs_filestream.h"

#include "xfs_cksum.h"

#include "xfs_trace.h"

#include "xfs_icache.h"

#include "xfs_symlink.h"

#include "xfs_trans_priv.h"

#include "xfs_log.h"

#include "xfs_bmap_btree.h"

#include "xfs_reflink.h"

#include "xfs_dir2_priv.h"

​

kmem_zone_t *xfs_inode_zone;

​

/*

 * Used in xfs_itruncate_extents().  This is the maximum number of extents

 * freed from a file in a single transaction.

 */

#define XFS_ITRUNC_MAX_EXTENTS  2

​

STATIC int xfs_iflush_int(struct xfs_inode *, struct xfs_buf *);

STATIC int xfs_iunlink(struct xfs_trans *, struct xfs_inode *);

STATIC int xfs_iunlink_remove(struct xfs_trans *, struct xfs_inode *);

​

/*

 * helper function to extract extent size hint from inode

 */

xfs_extlen_t

xfs_get_extsz_hint(

    struct xfs_inode    *ip)

{

    if ((ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE) && ip->i_d.di_extsize)

        return ip->i_d.di_extsize;

    if (XFS_IS_REALTIME_INODE(ip))

        return ip->i_mount->m_sb.sb_rextsize;

    return 0;

}

​

/*

 * Helper function to extract CoW extent size hint from inode.

 * Between the extent size hint and the CoW extent size hint, we

 * return the greater of the two.  If the value is zero (automatic),

 * use the default size.

 */

xfs_extlen_t

xfs_get_cowextsz_hint(

    struct xfs_inode    *ip)

{

    xfs_extlen_t        a, b;

​

    a = 0;

    if (ip->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE)

        a = ip->i_d.di_cowextsize;

    b = xfs_get_extsz_hint(ip);

​

    a = max(a, b);

    if (a == 0)

        return XFS_DEFAULT_COWEXTSZ_HINT;

    return a;

}