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xfs: convert dir byte/off conversion to xfs_da_geometry 

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Dave Chinner 2014-06-06 15:06:53 +10:00 committed by Dave Chinner
parent 8c44a28561
commit 9b3b5522d3
3 changed files with 14 additions and 13 deletions
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2
fs/xfs/xfs_dir2.c
View File

@ -749,7 +749,7 @@ xfs_dir2_shrink_inode(
/*
* If the block isn't the last one in the directory, we're done.
*/
if (dp->i_d.di_size > xfs_dir2_db_off_to_byte(mp, db + 1, 0))
if (dp->i_d.di_size > xfs_dir2_db_off_to_byte(args->geo, db + 1, 0))
return 0;
bno = da;
if ((error = xfs_bmap_last_before(tp, dp, &bno, XFS_DATA_FORK))) {

18
fs/xfs/xfs_dir2_priv.h
View File

@ -67,10 +67,9 @@ xfs_dir2_dataptr_to_db(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
* Convert byte in space to offset in a block
*/
static inline xfs_dir2_data_aoff_t
xfs_dir2_byte_to_off(struct xfs_mount *mp, xfs_dir2_off_t by)
xfs_dir2_byte_to_off(struct xfs_da_geometry *geo, xfs_dir2_off_t by)
{
return (xfs_dir2_data_aoff_t)(by &
((1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) - 1));
return (xfs_dir2_data_aoff_t)(by & (geo->blksize - 1));
}
/*
@ -79,18 +78,17 @@ xfs_dir2_byte_to_off(struct xfs_mount *mp, xfs_dir2_off_t by)
static inline xfs_dir2_data_aoff_t
xfs_dir2_dataptr_to_off(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
{
return xfs_dir2_byte_to_off(mp, xfs_dir2_dataptr_to_byte(dp));
return xfs_dir2_byte_to_off(mp->m_dir_geo, xfs_dir2_dataptr_to_byte(dp));
}
/*
* Convert block and offset to byte in space
*/
static inline xfs_dir2_off_t
xfs_dir2_db_off_to_byte(struct xfs_mount *mp, xfs_dir2_db_t db,
xfs_dir2_db_off_to_byte(struct xfs_da_geometry *geo, xfs_dir2_db_t db,
xfs_dir2_data_aoff_t o)
{
return ((xfs_dir2_off_t)db <<
(mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) + o;
return ((xfs_dir2_off_t)db << geo->blklog) + o;
}
/*
@ -118,7 +116,8 @@ static inline xfs_dir2_dataptr_t
xfs_dir2_db_off_to_dataptr(struct xfs_mount *mp, xfs_dir2_db_t db,
xfs_dir2_data_aoff_t o)
{
return xfs_dir2_byte_to_dataptr(xfs_dir2_db_off_to_byte(mp, db, o));
return xfs_dir2_byte_to_dataptr(
xfs_dir2_db_off_to_byte(mp->m_dir_geo, db, o));
}
/*
@ -136,7 +135,8 @@ xfs_dir2_da_to_db(struct xfs_mount *mp, xfs_dablk_t da)
static inline xfs_dir2_off_t
xfs_dir2_da_to_byte(struct xfs_mount *mp, xfs_dablk_t da)
{
return xfs_dir2_db_off_to_byte(mp, xfs_dir2_da_to_db(mp, da), 0);
return xfs_dir2_db_off_to_byte(mp->m_dir_geo,
xfs_dir2_da_to_db(mp, da), 0);
}
/*

7
fs/xfs/xfs_dir2_readdir.c
View File

@ -560,7 +560,8 @@ xfs_dir2_leaf_getdents(
/*
* Having done a read, we need to set a new offset.
*/
newoff = xfs_dir2_db_off_to_byte(mp, map_info->curdb, 0);
newoff = xfs_dir2_db_off_to_byte(mp->m_dir_geo,
map_info->curdb, 0);
/*
* Start of the current block.
*/
@ -578,7 +579,7 @@ xfs_dir2_leaf_getdents(
* Find our position in the block.
*/
ptr = (char *)dp->d_ops->data_entry_p(hdr);
byteoff = xfs_dir2_byte_to_off(mp, curoff);
byteoff = xfs_dir2_byte_to_off(mp->m_dir_geo, curoff);
/*
* Skip past the header.
*/
@ -607,7 +608,7 @@ xfs_dir2_leaf_getdents(
* Now set our real offset.
*/
curoff =
xfs_dir2_db_off_to_byte(mp,
xfs_dir2_db_off_to_byte(mp->m_dir_geo,
xfs_dir2_byte_to_db(mp, curoff),
(char *)ptr - (char *)hdr);
if (ptr >= (char *)hdr + mp->m_dirblksize) {