[PATCH 17/16] xfs: remove redundant geometry information from xfs_da_state

Dave Chinner
2014-05-30T23:39:11Z

It's carried in state->args->geo, so there's no need to duplicate it
and use more stack space than necessary.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_attr.c | 8 --------
fs/xfs/xfs_attr_leaf.c | 19 ++++++++++---------
fs/xfs/xfs_da_btree.c | 13 +++++++------
fs/xfs/xfs_da_btree.h | 2 --
fs/xfs/xfs_dir2_node.c | 13 +++----------
5 files changed, 20 insertions(+), 35 deletions(-)

diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index 470a22d..bfe36fc 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -896,8 +896,6 @@ restart:
state = xfs_da_state_alloc();
state->args = args;
state->mp = mp;
- state->blocksize = args->geo->blksize;
- state->node_ents = args->geo->node_ents;

/*
* Search to see if name already exists, and get back a pointer
@@ -1075,8 +1073,6 @@ restart:
state = xfs_da_state_alloc();
state->args = args;
state->mp = mp;
- state->blocksize = args->geo->blksize;
- state->node_ents = args->geo->node_ents;
state->inleaf = 0;
error = xfs_da3_node_lookup_int(state, &retval);
if (error)
@@ -1167,8 +1163,6 @@ xfs_attr_node_removename(xfs_da_args_t *args)
state = xfs_da_state_alloc();
state->args = args;
state->mp = dp->i_mount;
- state->blocksize = args->geo->blksize;
- state->node_ents = args->geo->node_ents;

/*
* Search to see if name exists, and get back a pointer to it.
@@ -1430,8 +1424,6 @@ xfs_attr_node_get(xfs_da_args_t *args)
state = xfs_da_state_alloc();
state->args = args;
state->mp = args->dp->i_mount;
- state->blocksize = args->geo->blksize;
- state->node_ents = args->geo->node_ents;

/*
* Search to see if name exists, and get back a pointer to it.
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index ae33b14..28712d2 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -1494,8 +1494,8 @@ xfs_attr3_leaf_rebalance(

xfs_attr3_leaf_hdr_to_disk(leaf1, &ichdr1);
xfs_attr3_leaf_hdr_to_disk(leaf2, &ichdr2);
- xfs_trans_log_buf(args->trans, blk1->bp, 0, state->blocksize-1);
- xfs_trans_log_buf(args->trans, blk2->bp, 0, state->blocksize-1);
+ xfs_trans_log_buf(args->trans, blk1->bp, 0, args->geo->blksize - 1);
+ xfs_trans_log_buf(args->trans, blk2->bp, 0, args->geo->blksize - 1);

/*
* Copy out last hashval in each block for B-tree code.
@@ -1592,7 +1592,7 @@ xfs_attr3_leaf_figure_balance(
half += ichdr1->usedbytes + ichdr2->usedbytes +
xfs_attr_leaf_newentsize(state->args, NULL);
half /= 2;
- lastdelta = state->blocksize;
+ lastdelta = state->args->geo->blksize;
entry = xfs_attr3_leaf_entryp(leaf1);
for (count = index = 0; count < max; entry++, index++, count++) {

@@ -1690,7 +1690,7 @@ xfs_attr3_leaf_toosmall(
bytes = xfs_attr3_leaf_hdr_size(leaf) +
ichdr.count * sizeof(xfs_attr_leaf_entry_t) +
ichdr.usedbytes;
- if (bytes > (state->blocksize >> 1)) {
+ if (bytes > (state->args->geo->blksize >> 1)) {
*action = 0; /* blk over 50%, don't try to join */
return(0);
}
@@ -1744,7 +1744,8 @@ xfs_attr3_leaf_toosmall(

xfs_attr3_leaf_hdr_from_disk(&ichdr2, bp->b_addr);

- bytes = state->blocksize - (state->blocksize >> 2) -
+ bytes = state->args->geo->blksize -
+ (state->args->geo->blksize >> 2) -
ichdr.usedbytes - ichdr2.usedbytes -
((ichdr.count + ichdr2.count) *
sizeof(xfs_attr_leaf_entry_t)) -
@@ -1997,7 +1998,7 @@ xfs_attr3_leaf_unbalance(
struct xfs_attr_leafblock *tmp_leaf;
struct xfs_attr3_icleaf_hdr tmphdr;

- tmp_leaf = kmem_zalloc(state->blocksize, KM_SLEEP);
+ tmp_leaf = kmem_zalloc(state->args->geo->blksize, KM_SLEEP);

/*
* Copy the header into the temp leaf so that all the stuff
@@ -2010,7 +2011,7 @@ xfs_attr3_leaf_unbalance(
tmphdr.magic = savehdr.magic;
tmphdr.forw = savehdr.forw;
tmphdr.back = savehdr.back;
- tmphdr.firstused = state->blocksize;
+ tmphdr.firstused = state->args->geo->blksize;

/* write the header to the temp buffer to initialise it */
xfs_attr3_leaf_hdr_to_disk(tmp_leaf, &tmphdr);
@@ -2035,14 +2036,14 @@ xfs_attr3_leaf_unbalance(
tmp_leaf, &tmphdr, tmphdr.count,
drophdr.count);
}
- memcpy(save_leaf, tmp_leaf, state->blocksize);
+ memcpy(save_leaf, tmp_leaf, state->args->geo->blksize);
savehdr = tmphdr; /* struct copy */
kmem_free(tmp_leaf);
}

xfs_attr3_leaf_hdr_to_disk(save_leaf, &savehdr);
xfs_trans_log_buf(state->args->trans, save_blk->bp, 0,
- state->blocksize - 1);
+ state->args->geo->blksize - 1);

/*
* Copy out last hashval in each block for B-tree code.
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index f935370..2da9922 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -663,7 +663,7 @@ xfs_da3_node_split(
/*
* Do we have to split the node?
*/
- if (nodehdr.count + newcount > state->node_ents) {
+ if (nodehdr.count + newcount > state->args->geo->node_ents) {
/*
* Allocate a new node, add to the doubly linked chain of
* nodes, then move some of our excess entries into it.
@@ -1089,14 +1089,15 @@ xfs_da3_root_join(
* that could occur. For dir3 blocks we also need to update the block
* number in the buffer header.
*/
- memcpy(root_blk->bp->b_addr, bp->b_addr, state->blocksize);
+ memcpy(root_blk->bp->b_addr, bp->b_addr, state->args->geo->blksize);
root_blk->bp->b_ops = bp->b_ops;
xfs_trans_buf_copy_type(root_blk->bp, bp);
if (oldroothdr.magic == XFS_DA3_NODE_MAGIC) {
struct xfs_da3_blkinfo *da3 = root_blk->bp->b_addr;
da3->blkno = cpu_to_be64(root_blk->bp->b_bn);
}
- xfs_trans_log_buf(args->trans, root_blk->bp, 0, state->blocksize - 1);
+ xfs_trans_log_buf(args->trans, root_blk->bp, 0,
+ state->args->geo->blksize - 1);
error = xfs_da_shrink_inode(args, child, bp);
return(error);
}
@@ -1139,7 +1140,7 @@ xfs_da3_node_toosmall(
info = blk->bp->b_addr;
node = (xfs_da_intnode_t *)info;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
- if (nodehdr.count > (state->node_ents >> 1)) {
+ if (nodehdr.count > (state->args->geo->node_ents >> 1)) {
*action = 0; /* blk over 50%, don't try to join */
return(0); /* blk over 50%, don't try to join */
}
@@ -1176,8 +1177,8 @@ xfs_da3_node_toosmall(
* We prefer coalescing with the lower numbered sibling so as
* to shrink a directory over time.
*/
- count = state->node_ents;
- count -= state->node_ents >> 2;
+ count = state->args->geo->node_ents;
+ count -= state->args->geo->node_ents >> 2;
count -= nodehdr.count;

/* start with smaller blk num */
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h
index 0ac63ad..6e153e3 100644
--- a/fs/xfs/xfs_da_btree.h
+++ b/fs/xfs/xfs_da_btree.h
@@ -128,8 +128,6 @@ typedef struct xfs_da_state_path {
typedef struct xfs_da_state {
xfs_da_args_t *args; /* filename arguments */
struct xfs_mount *mp; /* filesystem mount point */
- unsigned int blocksize; /* logical block size */
- unsigned int node_ents; /* how many entries in danode */
xfs_da_state_path_t path; /* search/split paths */
xfs_da_state_path_t altpath; /* alternate path for join */
unsigned char inleaf; /* insert into 1->lf, 0->splf */
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 65df8cb..da43d30 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -1414,7 +1414,7 @@ xfs_dir2_leafn_toosmall(

count = leafhdr.count - leafhdr.stale;
bytes = dp->d_ops->leaf_hdr_size + count * sizeof(ents[0]);
- if (bytes > (state->blocksize >> 1)) {
+ if (bytes > (state->args->geo->blksize >> 1)) {
/*
* Blk over 50%, don't try to join.
*/
@@ -1467,7 +1467,8 @@ xfs_dir2_leafn_toosmall(
* Count bytes in the two blocks combined.
*/
count = leafhdr.count - leafhdr.stale;
- bytes = state->blocksize - (state->blocksize >> 2);
+ bytes = state->args->geo->blksize -
+ (state->args->geo->blksize >> 2);

leaf = bp->b_addr;
dp->d_ops->leaf_hdr_from_disk(&hdr2, leaf);
@@ -1591,8 +1592,6 @@ xfs_dir2_node_addname(
state = xfs_da_state_alloc();
state->args = args;
state->mp = args->dp->i_mount;
- state->blocksize = args->geo->blksize;
- state->node_ents = args->geo->node_ents;
/*
* Look up the name. We're not supposed to find it, but
* this gives us the insertion point.
@@ -2037,8 +2036,6 @@ xfs_dir2_node_lookup(
state = xfs_da_state_alloc();
state->args = args;
state->mp = args->dp->i_mount;
- state->blocksize = args->geo->blksize;
- state->node_ents = args->geo->node_ents;
/*
* Fill in the path to the entry in the cursor.
*/
@@ -2092,8 +2089,6 @@ xfs_dir2_node_removename(
state = xfs_da_state_alloc();
state->args = args;
state->mp = args->dp->i_mount;
- state->blocksize = args->geo->blksize;
- state->node_ents = args->geo->node_ents;

/* Look up the entry we're deleting, set up the cursor. */
error = xfs_da3_node_lookup_int(state, &rval);
@@ -2162,8 +2157,6 @@ xfs_dir2_node_replace(
state = xfs_da_state_alloc();
state->args = args;
state->mp = args->dp->i_mount;
- state->blocksize = args->geo->blksize;
- state->node_ents = args->geo->node_ents;
inum = args->inumber;
/*
* Lookup the entry to change in the btree.