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xfs: move the max dir2 leaf entries count to struct xfs_da_geometry 

Move the max leaf entries count towards our structure for dir/attr
geometry parameters.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2019-11-08 14:57:51 -08:00 committed by Darrick J. Wong
parent 545910bcc8
commit 478c7835cb
7 changed files with 6 additions and 29 deletions
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1
fs/xfs/libxfs/xfs_da_btree.h
View File

@ -27,6 +27,7 @@ struct xfs_da_geometry {
unsigned int magicpct; /* 37% of block size in bytes */
xfs_dablk_t datablk; /* blockno of dir data v2 */
unsigned int leaf_hdr_size; /* dir2 leaf header size */
unsigned int leaf_max_ents; /* # of entries in dir2 leaf */
xfs_dablk_t leafblk; /* blockno of leaf data v2 */
xfs_dablk_t freeblk; /* blockno of free data v2 */
};

23
fs/xfs/libxfs/xfs_da_format.c
View File

@ -401,23 +401,6 @@ xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
}
/*
* Directory Leaf block operations
*/
static int
xfs_dir2_max_leaf_ents(struct xfs_da_geometry *geo)
{
return (geo->blksize - sizeof(struct xfs_dir2_leaf_hdr)) /
(uint)sizeof(struct xfs_dir2_leaf_entry);
}
static int
xfs_dir3_max_leaf_ents(struct xfs_da_geometry *geo)
{
return (geo->blksize - sizeof(struct xfs_dir3_leaf_hdr)) /
(uint)sizeof(struct xfs_dir2_leaf_entry);
}
/*
* Directory free space block operations
*/
@ -570,8 +553,6 @@ static const struct xfs_dir_ops xfs_dir2_ops = {
.data_entry_p = xfs_dir2_data_entry_p,
.data_unused_p = xfs_dir2_data_unused_p,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
@ -611,8 +592,6 @@ static const struct xfs_dir_ops xfs_dir2_ftype_ops = {
.data_entry_p = xfs_dir2_data_entry_p,
.data_unused_p = xfs_dir2_data_unused_p,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
@ -652,8 +631,6 @@ static const struct xfs_dir_ops xfs_dir3_ops = {
.data_entry_p = xfs_dir3_data_entry_p,
.data_unused_p = xfs_dir3_data_unused_p,
.leaf_max_ents = xfs_dir3_max_leaf_ents,
.free_hdr_size = sizeof(struct xfs_dir3_free_hdr),
.free_hdr_to_disk = xfs_dir3_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir3_free_hdr_from_disk,

2
fs/xfs/libxfs/xfs_dir2.c
View File

@ -129,6 +129,8 @@ xfs_da_mount(
dageo->node_hdr_size = sizeof(struct xfs_da_node_hdr);
dageo->leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr);
}
dageo->leaf_max_ents = (dageo->blksize - dageo->leaf_hdr_size) /
sizeof(struct xfs_dir2_leaf_entry);
/*
* Now we've set up the block conversion variables, we can calculate the

2
fs/xfs/libxfs/xfs_dir2.h
View File

@ -72,8 +72,6 @@ struct xfs_dir_ops {
struct xfs_dir2_data_unused *
(*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
int (*leaf_max_ents)(struct xfs_da_geometry *geo);
int free_hdr_size;
void (*free_hdr_to_disk)(struct xfs_dir2_free *to,
struct xfs_dir3_icfree_hdr *from);

2
fs/xfs/libxfs/xfs_dir2_leaf.c
View File

@ -167,7 +167,7 @@ xfs_dir3_leaf_check_int(
* Should factor in the size of the bests table as well.
* We can deduce a value for that from di_size.
*/
if (hdr->count > ops->leaf_max_ents(geo))
if (hdr->count > geo->leaf_max_ents)
return __this_address;
/* Leaves and bests don't overlap in leaf format. */

2
fs/xfs/libxfs/xfs_dir2_node.c
View File

@ -459,7 +459,7 @@ xfs_dir2_leafn_add(
* a compact.
*/
if (leafhdr.count == dp->d_ops->leaf_max_ents(args->geo)) {
if (leafhdr.count == args->geo->leaf_max_ents) {
if (!leafhdr.stale)
return -ENOSPC;
compact = leafhdr.stale > 1;

3
fs/xfs/scrub/dir.c
View File

@ -489,7 +489,6 @@ xchk_directory_leaf1_bestfree(
struct xfs_dir2_leaf *leaf;
struct xfs_buf *dbp;
struct xfs_buf *bp;
const struct xfs_dir_ops *d_ops = sc->ip->d_ops;
struct xfs_da_geometry *geo = sc->mp->m_dir_geo;
__be16 *bestp;
__u16 best;
@ -529,7 +528,7 @@ xchk_directory_leaf1_bestfree(
}
/* Is the leaf count even remotely sane? */
if (leafhdr.count > d_ops->leaf_max_ents(geo)) {
if (leafhdr.count > geo->leaf_max_ents) {
xchk_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
goto out;
}