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ocfs2: Add an insertion check to ocfs2_extent_tree_operations. 

A couple places check an extent_tree for a valid inode.  We move that
out to add an eo_insert_check() operation.  It can be called from
ocfs2_insert_extent() and elsewhere.

We also have the wrapper calls ocfs2_et_insert_check() and
ocfs2_et_sanity_check() ignore NULL ops.  That way we don't have to
provide useless operations for xattr types.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Joel Becker 2008-08-20 18:32:45 -07:00 committed by Mark Fasheh
parent 1a09f556e5
commit 1e61ee79e2
1 changed files with 44 additions and 25 deletions
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69
fs/ocfs2/alloc.c
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@ -71,6 +71,9 @@ struct ocfs2_extent_tree_operations {
void (*eo_update_clusters)(struct inode *inode,
struct ocfs2_extent_tree *et,
u32 new_clusters);
int (*eo_insert_check)(struct inode *inode,
struct ocfs2_extent_tree *et,
struct ocfs2_extent_rec *rec);
int (*eo_sanity_check)(struct inode *inode, struct ocfs2_extent_tree *et);
/* These are internal to ocfs2_extent_tree and don't have
@ -125,6 +128,25 @@ static void ocfs2_dinode_update_clusters(struct inode *inode,
spin_unlock(&OCFS2_I(inode)->ip_lock);
}
static int ocfs2_dinode_insert_check(struct inode *inode,
struct ocfs2_extent_tree *et,
struct ocfs2_extent_rec *rec)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
BUG_ON(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL);
mlog_bug_on_msg(!ocfs2_sparse_alloc(osb) &&
(OCFS2_I(inode)->ip_clusters != rec->e_cpos),
"Device %s, asking for sparse allocation: inode %llu, "
"cpos %u, clusters %u\n",
osb->dev_str,
(unsigned long long)OCFS2_I(inode)->ip_blkno,
rec->e_cpos,
OCFS2_I(inode)->ip_clusters);
return 0;
}
static int ocfs2_dinode_sanity_check(struct inode *inode,
struct ocfs2_extent_tree *et)
{
@ -148,6 +170,7 @@ static struct ocfs2_extent_tree_operations ocfs2_dinode_et_ops = {
.eo_set_last_eb_blk = ocfs2_dinode_set_last_eb_blk,
.eo_get_last_eb_blk = ocfs2_dinode_get_last_eb_blk,
.eo_update_clusters = ocfs2_dinode_update_clusters,
.eo_insert_check = ocfs2_dinode_insert_check,
.eo_sanity_check = ocfs2_dinode_sanity_check,
.eo_fill_root_el = ocfs2_dinode_fill_root_el,
};
@ -186,17 +209,10 @@ static void ocfs2_xattr_value_update_clusters(struct inode *inode,
le32_add_cpu(&xv->xr_clusters, clusters);
}
static int ocfs2_xattr_value_sanity_check(struct inode *inode,
struct ocfs2_extent_tree *et)
{
return 0;
}
static struct ocfs2_extent_tree_operations ocfs2_xattr_value_et_ops = {
.eo_set_last_eb_blk = ocfs2_xattr_value_set_last_eb_blk,
.eo_get_last_eb_blk = ocfs2_xattr_value_get_last_eb_blk,
.eo_update_clusters = ocfs2_xattr_value_update_clusters,
.eo_sanity_check = ocfs2_xattr_value_sanity_check,
.eo_fill_root_el = ocfs2_xattr_value_fill_root_el,
};
@ -241,17 +257,10 @@ static void ocfs2_xattr_tree_update_clusters(struct inode *inode,
le32_add_cpu(&xb->xb_attrs.xb_root.xt_clusters, clusters);
}
static int ocfs2_xattr_tree_sanity_check(struct inode *inode,
struct ocfs2_extent_tree *et)
{
return 0;
}
static struct ocfs2_extent_tree_operations ocfs2_xattr_tree_et_ops = {
.eo_set_last_eb_blk = ocfs2_xattr_tree_set_last_eb_blk,
.eo_get_last_eb_blk = ocfs2_xattr_tree_get_last_eb_blk,
.eo_update_clusters = ocfs2_xattr_tree_update_clusters,
.eo_sanity_check = ocfs2_xattr_tree_sanity_check,
.eo_fill_root_el = ocfs2_xattr_tree_fill_root_el,
.eo_fill_max_leaf_clusters = ocfs2_xattr_tree_fill_max_leaf_clusters,
};
@ -344,10 +353,25 @@ static inline void ocfs2_et_update_clusters(struct inode *inode,
et->et_ops->eo_update_clusters(inode, et, clusters);
}
static inline int ocfs2_et_insert_check(struct inode *inode,
struct ocfs2_extent_tree *et,
struct ocfs2_extent_rec *rec)
{
int ret = 0;
if (et->et_ops->eo_insert_check)
ret = et->et_ops->eo_insert_check(inode, et, rec);
return ret;
}
static inline int ocfs2_et_sanity_check(struct inode *inode,
struct ocfs2_extent_tree *et)
{
return et->et_ops->eo_sanity_check(inode, et);
int ret = 0;
if (et->et_ops->eo_sanity_check)
ret = et->et_ops->eo_sanity_check(inode, et);
return ret;
}
static void ocfs2_free_truncate_context(struct ocfs2_truncate_context *tc);
@ -4399,24 +4423,19 @@ static int ocfs2_insert_extent(struct ocfs2_super *osb,
struct ocfs2_insert_type insert = {0, };
struct ocfs2_extent_rec rec;
BUG_ON(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL);
mlog(0, "add %u clusters at position %u to inode %llu\n",
new_clusters, cpos, (unsigned long long)OCFS2_I(inode)->ip_blkno);
mlog_bug_on_msg(!ocfs2_sparse_alloc(osb) &&
(OCFS2_I(inode)->ip_clusters != cpos),
"Device %s, asking for sparse allocation: inode %llu, "
"cpos %u, clusters %u\n",
osb->dev_str,
(unsigned long long)OCFS2_I(inode)->ip_blkno, cpos,
OCFS2_I(inode)->ip_clusters);
memset(&rec, 0, sizeof(rec));
rec.e_cpos = cpu_to_le32(cpos);
rec.e_blkno = cpu_to_le64(start_blk);
rec.e_leaf_clusters = cpu_to_le16(new_clusters);
rec.e_flags = flags;
status = ocfs2_et_insert_check(inode, et, &rec);
if (status) {
mlog_errno(status);
goto bail;
}
status = ocfs2_figure_insert_type(inode, et, &last_eb_bh, &rec,
&free_records, &insert);