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authorDave Chinner <dchinner@redhat.com>2014-06-06 15:08:18 +1000
committerDave Chinner <david@fromorbit.com>2014-06-06 15:08:18 +1000
commit30028030b14d083123c88e3ab45990a8c375abf1 (patch)
treec6787bd71e8b29f7acf675500a899e4154e0b951 /fs/xfs/xfs_dir2_readdir.c
parent2998ab1d450a526a9a3a6292f91239b4fc209db0 (diff)
downloadop-kernel-dev-30028030b14d083123c88e3ab45990a8c375abf1.zip
op-kernel-dev-30028030b14d083123c88e3ab45990a8c375abf1.tar.gz
xfs: convert directory db 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>
Diffstat (limited to 'fs/xfs/xfs_dir2_readdir.c')
-rw-r--r--fs/xfs/xfs_dir2_readdir.c45
1 files changed, 26 insertions, 19 deletions
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 57e9247..c2a6387 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -87,8 +87,10 @@ xfs_dir2_sf_getdents(
xfs_dir2_dataptr_t dot_offset;
xfs_dir2_dataptr_t dotdot_offset;
xfs_ino_t ino;
+ struct xfs_da_geometry *geo;
mp = dp->i_mount;
+ geo = mp->m_dir_geo;
ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
/*
@@ -109,7 +111,7 @@ xfs_dir2_sf_getdents(
/*
* If the block number in the offset is out of range, we're done.
*/
- if (xfs_dir2_dataptr_to_db(mp, ctx->pos) > mp->m_dirdatablk)
+ if (xfs_dir2_dataptr_to_db(geo, ctx->pos) > mp->m_dirdatablk)
return 0;
/*
@@ -118,9 +120,9 @@ xfs_dir2_sf_getdents(
* XXX(hch): the second argument is sometimes 0 and sometimes
* mp->m_dirdatablk.
*/
- dot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
+ dot_offset = xfs_dir2_db_off_to_dataptr(geo, mp->m_dirdatablk,
dp->d_ops->data_dot_offset);
- dotdot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
+ dotdot_offset = xfs_dir2_db_off_to_dataptr(geo, mp->m_dirdatablk,
dp->d_ops->data_dotdot_offset);
/*
@@ -149,7 +151,7 @@ xfs_dir2_sf_getdents(
for (i = 0; i < sfp->count; i++) {
__uint8_t filetype;
- off = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
+ off = xfs_dir2_db_off_to_dataptr(geo, mp->m_dirdatablk,
xfs_dir2_sf_get_offset(sfep));
if (ctx->pos > off) {
@@ -166,7 +168,7 @@ xfs_dir2_sf_getdents(
sfep = dp->d_ops->sf_nextentry(sfp, sfep);
}
- ctx->pos = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0) &
+ ctx->pos = xfs_dir2_db_off_to_dataptr(geo, mp->m_dirdatablk + 1, 0) &
0x7fffffff;
return 0;
}
@@ -190,12 +192,14 @@ xfs_dir2_block_getdents(
char *ptr; /* current data entry */
int wantoff; /* starting block offset */
xfs_off_t cook;
+ struct xfs_da_geometry *geo;
mp = dp->i_mount;
+ geo = mp->m_dir_geo;
/*
* If the block number in the offset is out of range, we're done.
*/
- if (xfs_dir2_dataptr_to_db(mp, ctx->pos) > mp->m_dirdatablk)
+ if (xfs_dir2_dataptr_to_db(geo, ctx->pos) > mp->m_dirdatablk)
return 0;
error = xfs_dir3_block_read(NULL, dp, &bp);
@@ -206,7 +210,7 @@ xfs_dir2_block_getdents(
* Extract the byte offset we start at from the seek pointer.
* We'll skip entries before this.
*/
- wantoff = xfs_dir2_dataptr_to_off(mp, ctx->pos);
+ wantoff = xfs_dir2_dataptr_to_off(geo, ctx->pos);
hdr = bp->b_addr;
xfs_dir3_data_check(dp, bp);
/*
@@ -244,7 +248,7 @@ xfs_dir2_block_getdents(
if ((char *)dep - (char *)hdr < wantoff)
continue;
- cook = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
+ cook = xfs_dir2_db_off_to_dataptr(geo, mp->m_dirdatablk,
(char *)dep - (char *)hdr);
ctx->pos = cook & 0x7fffffff;
@@ -264,7 +268,7 @@ xfs_dir2_block_getdents(
* Reached the end of the block.
* Set the offset to a non-existent block 1 and return.
*/
- ctx->pos = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0) &
+ ctx->pos = xfs_dir2_db_off_to_dataptr(geo, mp->m_dirdatablk + 1, 0) &
0x7fffffff;
xfs_trans_brelse(NULL, bp);
return 0;
@@ -300,6 +304,7 @@ xfs_dir2_leaf_readbuf(
int length;
int i;
int j;
+ struct xfs_da_geometry *geo = mp->m_dir_geo;
/*
* If we have a buffer, we need to release it and
@@ -342,14 +347,14 @@ xfs_dir2_leaf_readbuf(
* run out of data blocks, get some more mappings.
*/
if (1 + mip->ra_want > mip->map_blocks &&
- mip->map_off < xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET)) {
+ mip->map_off < xfs_dir2_byte_to_da(geo, XFS_DIR2_LEAF_OFFSET)) {
/*
* Get more bmaps, fill in after the ones
* we already have in the table.
*/
mip->nmap = mip->map_size - mip->map_valid;
error = xfs_bmapi_read(dp, mip->map_off,
- xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET) -
+ xfs_dir2_byte_to_da(geo, XFS_DIR2_LEAF_OFFSET) -
mip->map_off,
&map[mip->map_valid], &mip->nmap, 0);
@@ -370,7 +375,7 @@ xfs_dir2_leaf_readbuf(
i = mip->map_valid + mip->nmap - 1;
mip->map_off = map[i].br_startoff + map[i].br_blockcount;
} else
- mip->map_off = xfs_dir2_byte_to_da(mp,
+ mip->map_off = xfs_dir2_byte_to_da(geo,
XFS_DIR2_LEAF_OFFSET);
/*
@@ -396,14 +401,14 @@ xfs_dir2_leaf_readbuf(
* No valid mappings, so no more data blocks.
*/
if (!mip->map_valid) {
- *curoff = xfs_dir2_da_to_byte(mp->m_dir_geo, mip->map_off);
+ *curoff = xfs_dir2_da_to_byte(geo, mip->map_off);
goto out;
}
/*
* Read the directory block starting at the first mapping.
*/
- mip->curdb = xfs_dir2_da_to_db(mp->m_dir_geo, map->br_startoff);
+ mip->curdb = xfs_dir2_da_to_db(geo, map->br_startoff);
error = xfs_dir3_data_read(NULL, dp, map->br_startoff,
map->br_blockcount >= mp->m_dirblkfsbs ?
XFS_FSB_TO_DADDR(mp, map->br_startblock) : -1, &bp);
@@ -504,6 +509,7 @@ xfs_dir2_leaf_getdents(
xfs_dir2_off_t newoff; /* new curoff after new blk */
char *ptr = NULL; /* pointer to current data */
struct xfs_dir2_leaf_map_info *map_info;
+ struct xfs_da_geometry *geo;
/*
* If the offset is at or past the largest allowed value,
@@ -513,6 +519,7 @@ xfs_dir2_leaf_getdents(
return 0;
mp = dp->i_mount;
+ geo = mp->m_dir_geo;
/*
* Set up to bmap a number of blocks based on the caller's
@@ -536,8 +543,8 @@ xfs_dir2_leaf_getdents(
* Force this conversion through db so we truncate the offset
* down to get the start of the data block.
*/
- map_info->map_off = xfs_dir2_db_to_da(mp->m_dir_geo,
- xfs_dir2_byte_to_db(mp, curoff));
+ map_info->map_off = xfs_dir2_db_to_da(geo,
+ xfs_dir2_byte_to_db(geo, curoff));
/*
* Loop over directory entries until we reach the end offset.
@@ -571,7 +578,7 @@ xfs_dir2_leaf_getdents(
* Make sure we're in the right block.
*/
else if (curoff > newoff)
- ASSERT(xfs_dir2_byte_to_db(mp, curoff) ==
+ ASSERT(xfs_dir2_byte_to_db(geo, curoff) ==
map_info->curdb);
hdr = bp->b_addr;
xfs_dir3_data_check(dp, bp);
@@ -608,8 +615,8 @@ xfs_dir2_leaf_getdents(
* Now set our real offset.
*/
curoff =
- xfs_dir2_db_off_to_byte(mp->m_dir_geo,
- xfs_dir2_byte_to_db(mp, curoff),
+ xfs_dir2_db_off_to_byte(geo,
+ xfs_dir2_byte_to_db(geo, curoff),
(char *)ptr - (char *)hdr);
if (ptr >= (char *)hdr + mp->m_dirblksize) {
continue;
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