mirror of
https://github.com/torvalds/linux.git
synced 2024-11-26 06:02:05 +00:00
ocfs2: Attach xattr clusters to refcount tree.
In ocfs2, when xattr's value is larger than OCFS2_XATTR_INLINE_SIZE, it will be kept outside of the blocks we store xattr entry. And they are stored in a b-tree also. So this patch try to attach all these clusters to refcount tree also. Signed-off-by: Tao Ma <tao.ma@oracle.com>
This commit is contained in:
Tao Ma
Joel Becker
parent
47bca4950b
commit
0129241e2b
@ -3547,7 +3547,8 @@ int ocfs2_add_refcount_flag(struct inode *inode,
|
||||
struct ocfs2_caching_info *ref_ci,
|
||||
struct buffer_head *ref_root_bh,
|
||||
u32 cpos, u32 p_cluster, u32 num_clusters,
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc)
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc,
|
||||
struct ocfs2_post_refcount *post)
|
||||
{
|
||||
int ret;
|
||||
handle_t *handle;
|
||||
@ -3576,6 +3577,9 @@ int ocfs2_add_refcount_flag(struct inode *inode,
|
||||
}
|
||||
}
|
||||
|
||||
if (post)
|
||||
credits += post->credits;
|
||||
|
||||
handle = ocfs2_start_trans(osb, credits);
|
||||
if (IS_ERR(handle)) {
|
||||
ret = PTR_ERR(handle);
|
||||
@ -3594,8 +3598,16 @@ int ocfs2_add_refcount_flag(struct inode *inode,
|
||||
ret = __ocfs2_increase_refcount(handle, ref_ci, ref_root_bh,
|
||||
p_cluster, num_clusters,
|
||||
meta_ac, dealloc);
|
||||
if (ret)
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
goto out_commit;
|
||||
}
|
||||
|
||||
if (post && post->func) {
|
||||
ret = post->func(inode, handle, post->para);
|
||||
if (ret)
|
||||
mlog_errno(ret);
|
||||
}
|
||||
|
||||
out_commit:
|
||||
ocfs2_commit_trans(osb, handle);
|
||||
@ -3688,7 +3700,7 @@ static int ocfs2_attach_refcount_tree(struct inode *inode,
|
||||
&ref_tree->rf_ci,
|
||||
ref_root_bh, cpos,
|
||||
p_cluster, num_clusters,
|
||||
&dealloc);
|
||||
&dealloc, NULL);
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
goto unlock;
|
||||
@ -3699,6 +3711,17 @@ static int ocfs2_attach_refcount_tree(struct inode *inode,
|
||||
cpos += num_clusters;
|
||||
}
|
||||
|
||||
if (oi->ip_dyn_features & OCFS2_HAS_XATTR_FL) {
|
||||
ret = ocfs2_xattr_attach_refcount_tree(inode, di_bh,
|
||||
&ref_tree->rf_ci,
|
||||
ref_root_bh,
|
||||
&dealloc);
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
goto unlock;
|
||||
}
|
||||
}
|
||||
|
||||
if (data_changed) {
|
||||
ret = ocfs2_change_ctime(inode, di_bh);
|
||||
if (ret)
|
||||
|
||||
@ -83,4 +83,11 @@ int ocfs2_refcount_cow_xattr(struct inode *inode,
|
||||
struct buffer_head *ref_root_bh,
|
||||
u32 cpos, u32 write_len,
|
||||
struct ocfs2_post_refcount *post);
|
||||
int ocfs2_add_refcount_flag(struct inode *inode,
|
||||
struct ocfs2_extent_tree *data_et,
|
||||
struct ocfs2_caching_info *ref_ci,
|
||||
struct buffer_head *ref_root_bh,
|
||||
u32 cpos, u32 p_cluster, u32 num_clusters,
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc,
|
||||
struct ocfs2_post_refcount *post);
|
||||
#endif /* OCFS2_REFCOUNTTREE_H */
|
||||
|
||||
291
fs/ocfs2/xattr.c
291
fs/ocfs2/xattr.c
@ -5550,6 +5550,297 @@ out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Add the REFCOUNTED flags for all the extent rec in ocfs2_xattr_value_root.
|
||||
* The physical clusters will be added to refcount tree.
|
||||
*/
|
||||
static int ocfs2_xattr_value_attach_refcount(struct inode *inode,
|
||||
struct ocfs2_xattr_value_root *xv,
|
||||
struct ocfs2_extent_tree *value_et,
|
||||
struct ocfs2_caching_info *ref_ci,
|
||||
struct buffer_head *ref_root_bh,
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc,
|
||||
struct ocfs2_post_refcount *refcount)
|
||||
{
|
||||
int ret = 0;
|
||||
u32 clusters = le32_to_cpu(xv->xr_clusters);
|
||||
u32 cpos, p_cluster, num_clusters;
|
||||
struct ocfs2_extent_list *el = &xv->xr_list;
|
||||
unsigned int ext_flags;
|
||||
|
||||
cpos = 0;
|
||||
while (cpos < clusters) {
|
||||
ret = ocfs2_xattr_get_clusters(inode, cpos, &p_cluster,
|
||||
&num_clusters, el, &ext_flags);
|
||||
|
||||
cpos += num_clusters;
|
||||
if ((ext_flags & OCFS2_EXT_REFCOUNTED))
|
||||
continue;
|
||||
|
||||
BUG_ON(!p_cluster);
|
||||
|
||||
ret = ocfs2_add_refcount_flag(inode, value_et,
|
||||
ref_ci, ref_root_bh,
|
||||
cpos - num_clusters,
|
||||
p_cluster, num_clusters,
|
||||
dealloc, refcount);
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Given a normal ocfs2_xattr_header, refcount all the entries which
|
||||
* have value stored outside.
|
||||
* Used for xattrs stored in inode and ocfs2_xattr_block.
|
||||
*/
|
||||
static int ocfs2_xattr_attach_refcount_normal(struct inode *inode,
|
||||
struct ocfs2_xattr_value_buf *vb,
|
||||
struct ocfs2_xattr_header *header,
|
||||
struct ocfs2_caching_info *ref_ci,
|
||||
struct buffer_head *ref_root_bh,
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc)
|
||||
{
|
||||
|
||||
struct ocfs2_xattr_entry *xe;
|
||||
struct ocfs2_xattr_value_root *xv;
|
||||
struct ocfs2_extent_tree et;
|
||||
int i, ret = 0;
|
||||
|
||||
for (i = 0; i < le16_to_cpu(header->xh_count); i++) {
|
||||
xe = &header->xh_entries[i];
|
||||
|
||||
if (ocfs2_xattr_is_local(xe))
|
||||
continue;
|
||||
|
||||
xv = (struct ocfs2_xattr_value_root *)((void *)header +
|
||||
le16_to_cpu(xe->xe_name_offset) +
|
||||
OCFS2_XATTR_SIZE(xe->xe_name_len));
|
||||
|
||||
vb->vb_xv = xv;
|
||||
ocfs2_init_xattr_value_extent_tree(&et, INODE_CACHE(inode), vb);
|
||||
|
||||
ret = ocfs2_xattr_value_attach_refcount(inode, xv, &et,
|
||||
ref_ci, ref_root_bh,
|
||||
dealloc, NULL);
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ocfs2_xattr_inline_attach_refcount(struct inode *inode,
|
||||
struct buffer_head *fe_bh,
|
||||
struct ocfs2_caching_info *ref_ci,
|
||||
struct buffer_head *ref_root_bh,
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc)
|
||||
{
|
||||
struct ocfs2_dinode *di = (struct ocfs2_dinode *)fe_bh->b_data;
|
||||
struct ocfs2_xattr_header *header = (struct ocfs2_xattr_header *)
|
||||
(fe_bh->b_data + inode->i_sb->s_blocksize -
|
||||
le16_to_cpu(di->i_xattr_inline_size));
|
||||
struct ocfs2_xattr_value_buf vb = {
|
||||
.vb_bh = fe_bh,
|
||||
.vb_access = ocfs2_journal_access_di,
|
||||
};
|
||||
|
||||
return ocfs2_xattr_attach_refcount_normal(inode, &vb, header,
|
||||
ref_ci, ref_root_bh, dealloc);
|
||||
}
|
||||
|
||||
struct ocfs2_xattr_tree_value_refcount_para {
|
||||
struct ocfs2_caching_info *ref_ci;
|
||||
struct buffer_head *ref_root_bh;
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc;
|
||||
};
|
||||
|
||||
static int ocfs2_get_xattr_tree_value_root(struct super_block *sb,
|
||||
struct ocfs2_xattr_bucket *bucket,
|
||||
int offset,
|
||||
struct ocfs2_xattr_value_root **xv,
|
||||
struct buffer_head **bh)
|
||||
{
|
||||
int ret, block_off, name_offset;
|
||||
struct ocfs2_xattr_header *xh = bucket_xh(bucket);
|
||||
struct ocfs2_xattr_entry *xe = &xh->xh_entries[offset];
|
||||
void *base;
|
||||
|
||||
ret = ocfs2_xattr_bucket_get_name_value(sb,
|
||||
bucket_xh(bucket),
|
||||
offset,
|
||||
&block_off,
|
||||
&name_offset);
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
goto out;
|
||||
}
|
||||
|
||||
base = bucket_block(bucket, block_off);
|
||||
|
||||
*xv = (struct ocfs2_xattr_value_root *)(base + name_offset +
|
||||
OCFS2_XATTR_SIZE(xe->xe_name_len));
|
||||
|
||||
if (bh)
|
||||
*bh = bucket->bu_bhs[block_off];
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* For a given xattr bucket, refcount all the entries which
|
||||
* have value stored outside.
|
||||
*/
|
||||
static int ocfs2_xattr_bucket_value_refcount(struct inode *inode,
|
||||
struct ocfs2_xattr_bucket *bucket,
|
||||
void *para)
|
||||
{
|
||||
int i, ret = 0;
|
||||
struct ocfs2_extent_tree et;
|
||||
struct ocfs2_xattr_tree_value_refcount_para *ref =
|
||||
(struct ocfs2_xattr_tree_value_refcount_para *)para;
|
||||
struct ocfs2_xattr_header *xh =
|
||||
(struct ocfs2_xattr_header *)bucket->bu_bhs[0]->b_data;
|
||||
struct ocfs2_xattr_entry *xe;
|
||||
struct ocfs2_xattr_value_buf vb = {
|
||||
.vb_access = ocfs2_journal_access,
|
||||
};
|
||||
struct ocfs2_post_refcount refcount = {
|
||||
.credits = bucket->bu_blocks,
|
||||
.para = bucket,
|
||||
.func = ocfs2_xattr_bucket_post_refcount,
|
||||
};
|
||||
struct ocfs2_post_refcount *p = NULL;
|
||||
|
||||
/* We only need post_refcount if we support metaecc. */
|
||||
if (ocfs2_meta_ecc(OCFS2_SB(inode->i_sb)))
|
||||
p = &refcount;
|
||||
|
||||
mlog(0, "refcount bucket %llu, count = %u\n",
|
||||
(unsigned long long)bucket_blkno(bucket),
|
||||
le16_to_cpu(xh->xh_count));
|
||||
for (i = 0; i < le16_to_cpu(xh->xh_count); i++) {
|
||||
xe = &xh->xh_entries[i];
|
||||
|
||||
if (ocfs2_xattr_is_local(xe))
|
||||
continue;
|
||||
|
||||
ret = ocfs2_get_xattr_tree_value_root(inode->i_sb, bucket, i,
|
||||
&vb.vb_xv, &vb.vb_bh);
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
break;
|
||||
}
|
||||
|
||||
ocfs2_init_xattr_value_extent_tree(&et,
|
||||
INODE_CACHE(inode), &vb);
|
||||
|
||||
ret = ocfs2_xattr_value_attach_refcount(inode, vb.vb_xv,
|
||||
&et, ref->ref_ci,
|
||||
ref->ref_root_bh,
|
||||
ref->dealloc, p);
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
|
||||
}
|
||||
|
||||
static int ocfs2_refcount_xattr_tree_rec(struct inode *inode,
|
||||
struct buffer_head *root_bh,
|
||||
u64 blkno, u32 cpos, u32 len, void *para)
|
||||
{
|
||||
return ocfs2_iterate_xattr_buckets(inode, blkno, len,
|
||||
ocfs2_xattr_bucket_value_refcount,
|
||||
para);
|
||||
}
|
||||
|
||||
static int ocfs2_xattr_block_attach_refcount(struct inode *inode,
|
||||
struct buffer_head *blk_bh,
|
||||
struct ocfs2_caching_info *ref_ci,
|
||||
struct buffer_head *ref_root_bh,
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc)
|
||||
{
|
||||
int ret = 0;
|
||||
struct ocfs2_xattr_block *xb =
|
||||
(struct ocfs2_xattr_block *)blk_bh->b_data;
|
||||
|
||||
if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) {
|
||||
struct ocfs2_xattr_header *header = &xb->xb_attrs.xb_header;
|
||||
struct ocfs2_xattr_value_buf vb = {
|
||||
.vb_bh = blk_bh,
|
||||
.vb_access = ocfs2_journal_access_xb,
|
||||
};
|
||||
|
||||
ret = ocfs2_xattr_attach_refcount_normal(inode, &vb, header,
|
||||
ref_ci, ref_root_bh,
|
||||
dealloc);
|
||||
} else {
|
||||
struct ocfs2_xattr_tree_value_refcount_para para = {
|
||||
.ref_ci = ref_ci,
|
||||
.ref_root_bh = ref_root_bh,
|
||||
.dealloc = dealloc,
|
||||
};
|
||||
|
||||
ret = ocfs2_iterate_xattr_index_block(inode, blk_bh,
|
||||
ocfs2_refcount_xattr_tree_rec,
|
||||
¶);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ocfs2_xattr_attach_refcount_tree(struct inode *inode,
|
||||
struct buffer_head *fe_bh,
|
||||
struct ocfs2_caching_info *ref_ci,
|
||||
struct buffer_head *ref_root_bh,
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc)
|
||||
{
|
||||
int ret = 0;
|
||||
struct ocfs2_inode_info *oi = OCFS2_I(inode);
|
||||
struct ocfs2_dinode *di = (struct ocfs2_dinode *)fe_bh->b_data;
|
||||
struct buffer_head *blk_bh = NULL;
|
||||
|
||||
if (oi->ip_dyn_features & OCFS2_INLINE_XATTR_FL) {
|
||||
ret = ocfs2_xattr_inline_attach_refcount(inode, fe_bh,
|
||||
ref_ci, ref_root_bh,
|
||||
dealloc);
|
||||
if (ret) {
|
||||
mlog_errno(ret);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
|
||||
if (!di->i_xattr_loc)
|
||||
goto out;
|
||||
|
||||
ret = ocfs2_read_xattr_block(inode, le64_to_cpu(di->i_xattr_loc),
|
||||
&blk_bh);
|
||||
if (ret < 0) {
|
||||
mlog_errno(ret);
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = ocfs2_xattr_block_attach_refcount(inode, blk_bh, ref_ci,
|
||||
ref_root_bh, dealloc);
|
||||
if (ret)
|
||||
mlog_errno(ret);
|
||||
|
||||
brelse(blk_bh);
|
||||
out:
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* 'security' attributes support
|
||||
*/
|
||||
|
||||
@ -83,5 +83,9 @@ struct ocfs2_xattr_value_buf {
|
||||
struct ocfs2_xattr_value_root *vb_xv;
|
||||
};
|
||||
|
||||
|
||||
int ocfs2_xattr_attach_refcount_tree(struct inode *inode,
|
||||
struct buffer_head *fe_bh,
|
||||
struct ocfs2_caching_info *ref_ci,
|
||||
struct buffer_head *ref_root_bh,
|
||||
struct ocfs2_cached_dealloc_ctxt *dealloc);
|
||||
#endif /* OCFS2_XATTR_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user