#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "file.h"
#include "symlink.h"
static int ocfs2_delete_xattr_index_block(struct inode *inode,
struct buffer_head *xb_bh);
-static int ocfs2_cp_xattr_bucket(struct inode *inode,
- handle_t *handle,
- u64 s_blkno,
- u64 t_blkno,
- int t_is_new);
+static int ocfs2_mv_xattr_buckets(struct inode *inode, handle_t *handle,
+ u64 src_blk, u64 last_blk, u64 to_blk,
+ unsigned int start_bucket,
+ u32 *first_hash);
static inline u16 ocfs2_xattr_buckets_per_cluster(struct ocfs2_super *osb)
{
rc = ocfs2_read_blocks(bucket->bu_inode, xb_blkno,
bucket->bu_blocks, bucket->bu_bhs, 0,
NULL);
+ if (!rc) {
+ rc = ocfs2_validate_meta_ecc_bhs(bucket->bu_inode->i_sb,
+ bucket->bu_bhs,
+ bucket->bu_blocks,
+ &bucket_xh(bucket)->xh_check);
+ if (rc)
+ mlog_errno(rc);
+ }
+
if (rc)
ocfs2_xattr_bucket_relse(bucket);
return rc;
{
int i;
+ ocfs2_compute_meta_ecc_bhs(bucket->bu_inode->i_sb,
+ bucket->bu_bhs, bucket->bu_blocks,
+ &bucket_xh(bucket)->xh_check);
+
for (i = 0; i < bucket->bu_blocks; i++)
ocfs2_journal_dirty(handle, bucket->bu_bhs[i]);
}
static int ocfs2_validate_xattr_block(struct super_block *sb,
struct buffer_head *bh)
{
+ int rc;
struct ocfs2_xattr_block *xb =
(struct ocfs2_xattr_block *)bh->b_data;
mlog(0, "Validating xattr block %llu\n",
(unsigned long long)bh->b_blocknr);
+ BUG_ON(!buffer_uptodate(bh));
+
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ */
+ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &xb->xb_check);
+ if (rc)
+ return rc;
+
+ /*
+ * Errors after here are fatal
+ */
+
if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
ocfs2_error(sb,
"Extended attribute block #%llu has bad "
static int ocfs2_xattr_extend_allocation(struct inode *inode,
u32 clusters_to_add,
- struct buffer_head *xattr_bh,
- struct ocfs2_xattr_value_root *xv,
+ struct ocfs2_xattr_value_buf *vb,
struct ocfs2_xattr_set_ctxt *ctxt)
{
int status = 0;
handle_t *handle = ctxt->handle;
enum ocfs2_alloc_restarted why;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- u32 prev_clusters, logical_start = le32_to_cpu(xv->xr_clusters);
+ u32 prev_clusters, logical_start = le32_to_cpu(vb->vb_xv->xr_clusters);
struct ocfs2_extent_tree et;
mlog(0, "(clusters_to_add for xattr= %u)\n", clusters_to_add);
- ocfs2_init_xattr_value_extent_tree(&et, inode, xattr_bh, xv);
+ ocfs2_init_xattr_value_extent_tree(&et, inode, vb);
- status = ocfs2_journal_access(handle, inode, xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = vb->vb_access(handle, inode, vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
}
- prev_clusters = le32_to_cpu(xv->xr_clusters);
+ prev_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
status = ocfs2_add_clusters_in_btree(osb,
inode,
&logical_start,
goto leave;
}
- status = ocfs2_journal_dirty(handle, xattr_bh);
+ status = ocfs2_journal_dirty(handle, vb->vb_bh);
if (status < 0) {
mlog_errno(status);
goto leave;
}
- clusters_to_add -= le32_to_cpu(xv->xr_clusters) - prev_clusters;
+ clusters_to_add -= le32_to_cpu(vb->vb_xv->xr_clusters) - prev_clusters;
/*
* We should have already allocated enough space before the transaction,
}
static int __ocfs2_remove_xattr_range(struct inode *inode,
- struct buffer_head *root_bh,
- struct ocfs2_xattr_value_root *xv,
+ struct ocfs2_xattr_value_buf *vb,
u32 cpos, u32 phys_cpos, u32 len,
struct ocfs2_xattr_set_ctxt *ctxt)
{
handle_t *handle = ctxt->handle;
struct ocfs2_extent_tree et;
- ocfs2_init_xattr_value_extent_tree(&et, inode, root_bh, xv);
+ ocfs2_init_xattr_value_extent_tree(&et, inode, vb);
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = vb->vb_access(handle, inode, vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
goto out;
}
- le32_add_cpu(&xv->xr_clusters, -len);
+ le32_add_cpu(&vb->vb_xv->xr_clusters, -len);
- ret = ocfs2_journal_dirty(handle, root_bh);
+ ret = ocfs2_journal_dirty(handle, vb->vb_bh);
if (ret) {
mlog_errno(ret);
goto out;
static int ocfs2_xattr_shrink_size(struct inode *inode,
u32 old_clusters,
u32 new_clusters,
- struct buffer_head *root_bh,
- struct ocfs2_xattr_value_root *xv,
+ struct ocfs2_xattr_value_buf *vb,
struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret = 0;
trunc_len = old_clusters - new_clusters;
while (trunc_len) {
ret = ocfs2_xattr_get_clusters(inode, cpos, &phys_cpos,
- &alloc_size, &xv->xr_list);
+ &alloc_size,
+ &vb->vb_xv->xr_list);
if (ret) {
mlog_errno(ret);
goto out;
if (alloc_size > trunc_len)
alloc_size = trunc_len;
- ret = __ocfs2_remove_xattr_range(inode, root_bh, xv, cpos,
+ ret = __ocfs2_remove_xattr_range(inode, vb, cpos,
phys_cpos, alloc_size,
ctxt);
if (ret) {
}
static int ocfs2_xattr_value_truncate(struct inode *inode,
- struct buffer_head *root_bh,
- struct ocfs2_xattr_value_root *xv,
+ struct ocfs2_xattr_value_buf *vb,
int len,
struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret;
u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb, len);
- u32 old_clusters = le32_to_cpu(xv->xr_clusters);
+ u32 old_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
if (new_clusters == old_clusters)
return 0;
if (new_clusters > old_clusters)
ret = ocfs2_xattr_extend_allocation(inode,
new_clusters - old_clusters,
- root_bh, xv, ctxt);
+ vb, ctxt);
else
ret = ocfs2_xattr_shrink_size(inode,
old_clusters, new_clusters,
- root_bh, xv, ctxt);
+ vb, ctxt);
return ret;
}
const void *value,
int value_len)
{
- int ret = 0, i, cp_len, credits;
+ int ret = 0, i, cp_len;
u16 blocksize = inode->i_sb->s_blocksize;
u32 p_cluster, num_clusters;
u32 cpos = 0, bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
BUG_ON(clusters > le32_to_cpu(xv->xr_clusters));
- /*
- * In __ocfs2_xattr_set_value_outside has already been dirtied,
- * so we don't need to worry about whether ocfs2_extend_trans
- * will create a new transactio for us or not.
- */
- credits = clusters * bpc;
- ret = ocfs2_extend_trans(handle, credits);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
while (cpos < clusters) {
ret = ocfs2_xattr_get_clusters(inode, cpos, &p_cluster,
&num_clusters, &xv->xr_list);
handle_t *handle,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_value_buf *vb,
size_t offs)
{
int ret = 0;
void *val = xs->base + offs;
size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
- ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = vb->vb_access(handle, inode, vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
memset((void *)xs->here, 0, sizeof(struct ocfs2_xattr_entry));
memset(val, 0, size);
- ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
+ ret = ocfs2_journal_dirty(handle, vb->vb_bh);
if (ret < 0)
mlog_errno(ret);
out:
handle_t *handle,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_value_buf *vb,
size_t offs)
{
int ret;
- ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = vb->vb_access(handle, inode, vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
ocfs2_xattr_set_local(xs->here, 0);
ocfs2_xattr_hash_entry(inode, xs->header, xs->here);
- ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
+ ret = ocfs2_journal_dirty(handle, vb->vb_bh);
if (ret < 0)
mlog_errno(ret);
out:
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
struct ocfs2_xattr_set_ctxt *ctxt,
+ struct ocfs2_xattr_value_buf *vb,
size_t offs)
{
size_t name_len = strlen(xi->name);
xv->xr_list.l_tree_depth = 0;
xv->xr_list.l_count = cpu_to_le16(1);
xv->xr_list.l_next_free_rec = 0;
+ vb->vb_xv = xv;
- ret = ocfs2_xattr_value_truncate(inode, xs->xattr_bh, xv,
- xi->value_len, ctxt);
+ ret = ocfs2_xattr_value_truncate(inode, vb, xi->value_len, ctxt);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
- ret = ocfs2_xattr_update_entry(inode, ctxt->handle, xi, xs, offs);
+ ret = ocfs2_xattr_update_entry(inode, ctxt->handle, xi, xs, vb, offs);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
- ret = __ocfs2_xattr_set_value_outside(inode, ctxt->handle, xv,
+ ret = __ocfs2_xattr_set_value_outside(inode, ctxt->handle, vb->vb_xv,
xi->value, xi->value_len);
if (ret < 0)
mlog_errno(ret);
.value = xi->value,
.value_len = xi->value_len,
};
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_bh = xs->xattr_bh,
+ .vb_access = ocfs2_journal_access_di,
+ };
+
+ if (!(flag & OCFS2_INLINE_XATTR_FL)) {
+ BUG_ON(xs->xattr_bh == xs->inode_bh);
+ vb.vb_access = ocfs2_journal_access_xb;
+ } else
+ BUG_ON(xs->xattr_bh != xs->inode_bh);
/* Compute min_offs, last and free space. */
last = xs->header->xh_entries;
if (ocfs2_xattr_is_local(xs->here) && size == size_l) {
/* Replace existing local xattr with tree root */
ret = ocfs2_xattr_set_value_outside(inode, xi, xs,
- ctxt, offs);
+ ctxt, &vb, offs);
if (ret < 0)
mlog_errno(ret);
goto out;
} else if (!ocfs2_xattr_is_local(xs->here)) {
/* For existing xattr which has value outside */
- struct ocfs2_xattr_value_root *xv = NULL;
- xv = (struct ocfs2_xattr_value_root *)(val +
- OCFS2_XATTR_SIZE(name_len));
+ vb.vb_xv = (struct ocfs2_xattr_value_root *)
+ (val + OCFS2_XATTR_SIZE(name_len));
if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
/*
* then set new value with set_value_outside().
*/
ret = ocfs2_xattr_value_truncate(inode,
- xs->xattr_bh,
- xv,
+ &vb,
xi->value_len,
ctxt);
if (ret < 0) {
handle,
xi,
xs,
+ &vb,
offs);
if (ret < 0) {
mlog_errno(ret);
ret = __ocfs2_xattr_set_value_outside(inode,
handle,
- xv,
+ vb.vb_xv,
xi->value,
xi->value_len);
if (ret < 0)
* just trucate old value to zero.
*/
ret = ocfs2_xattr_value_truncate(inode,
- xs->xattr_bh,
- xv,
+ &vb,
0,
ctxt);
if (ret < 0)
}
}
- ret = ocfs2_journal_access(handle, inode, xs->inode_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, xs->inode_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
}
if (!(flag & OCFS2_INLINE_XATTR_FL)) {
- ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = vb.vb_access(handle, inode, vb.vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
* This is the second step for value size > INLINE_SIZE.
*/
size_t offs = le16_to_cpu(xs->here->xe_name_offset);
- ret = ocfs2_xattr_set_value_outside(inode, xi, xs, ctxt, offs);
+ ret = ocfs2_xattr_set_value_outside(inode, xi, xs, ctxt,
+ &vb, offs);
if (ret < 0) {
int ret2;
* the junk tree root we have already set in local.
*/
ret2 = ocfs2_xattr_cleanup(inode, ctxt->handle,
- xi, xs, offs);
+ xi, xs, &vb, offs);
if (ret2 < 0)
mlog_errno(ret2);
}
}
static int ocfs2_remove_value_outside(struct inode*inode,
- struct buffer_head *bh,
+ struct ocfs2_xattr_value_buf *vb,
struct ocfs2_xattr_header *header)
{
int ret = 0, i;
struct ocfs2_xattr_entry *entry = &header->xh_entries[i];
if (!ocfs2_xattr_is_local(entry)) {
- struct ocfs2_xattr_value_root *xv;
void *val;
val = (void *)header +
le16_to_cpu(entry->xe_name_offset);
- xv = (struct ocfs2_xattr_value_root *)
+ vb->vb_xv = (struct ocfs2_xattr_value_root *)
(val + OCFS2_XATTR_SIZE(entry->xe_name_len));
- ret = ocfs2_xattr_value_truncate(inode, bh, xv,
- 0, &ctxt);
+ ret = ocfs2_xattr_value_truncate(inode, vb, 0, &ctxt);
if (ret < 0) {
mlog_errno(ret);
break;
struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
struct ocfs2_xattr_header *header;
int ret;
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_bh = di_bh,
+ .vb_access = ocfs2_journal_access_di,
+ };
header = (struct ocfs2_xattr_header *)
((void *)di + inode->i_sb->s_blocksize -
le16_to_cpu(di->i_xattr_inline_size));
- ret = ocfs2_remove_value_outside(inode, di_bh, header);
+ ret = ocfs2_remove_value_outside(inode, &vb, header);
return ret;
}
{
struct ocfs2_xattr_block *xb;
int ret = 0;
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_bh = blk_bh,
+ .vb_access = ocfs2_journal_access_xb,
+ };
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);
- ret = ocfs2_remove_value_outside(inode, blk_bh, header);
+ ret = ocfs2_remove_value_outside(inode, &vb, header);
} else
ret = ocfs2_delete_xattr_index_block(inode, blk_bh);
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode, di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out_commit;
int ret;
if (!xs->xattr_bh) {
- ret = ocfs2_journal_access(handle, inode, xs->inode_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ ret = ocfs2_journal_access_di(handle, inode, xs->inode_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (ret < 0) {
mlog_errno(ret);
goto end;
new_bh = sb_getblk(inode->i_sb, first_blkno);
ocfs2_set_new_buffer_uptodate(inode, new_bh);
- ret = ocfs2_journal_access(handle, inode, new_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ ret = ocfs2_journal_access_xb(handle, inode, new_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (ret < 0) {
mlog_errno(ret);
goto end;
xi->value_len);
u64 value_size;
+ /*
+ * Calculate the clusters we need to write.
+ * No matter whether we replace an old one or add a new one,
+ * we need this for writing.
+ */
+ if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
+ credits += new_clusters *
+ ocfs2_clusters_to_blocks(inode->i_sb, 1);
+
if (xis->not_found && xbs->not_found) {
credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
*/
down_write(&oi->ip_alloc_sem);
- ret = ocfs2_journal_access(handle, inode, xb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_xb(handle, inode, xb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
*/
static int ocfs2_mv_xattr_bucket_cross_cluster(struct inode *inode,
handle_t *handle,
- struct buffer_head **first_bh,
- struct buffer_head **header_bh,
+ struct ocfs2_xattr_bucket *first,
+ struct ocfs2_xattr_bucket *target,
u64 new_blkno,
- u64 prev_blkno,
u32 num_clusters,
u32 *first_hash)
{
- int i, ret, credits;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
- int num_buckets = ocfs2_xattr_buckets_per_cluster(osb);
+ int ret;
+ struct super_block *sb = inode->i_sb;
+ int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(sb);
+ int num_buckets = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(sb));
int to_move = num_buckets / 2;
- u64 last_cluster_blkno, src_blkno;
- struct ocfs2_xattr_header *xh =
- (struct ocfs2_xattr_header *)((*first_bh)->b_data);
- struct ocfs2_xattr_bucket *old_first, *new_first;
+ u64 src_blkno;
+ u64 last_cluster_blkno = bucket_blkno(first) +
+ ((num_clusters - 1) * ocfs2_clusters_to_blocks(sb, 1));
- BUG_ON(le16_to_cpu(xh->xh_num_buckets) < num_buckets);
- BUG_ON(OCFS2_XATTR_BUCKET_SIZE == osb->s_clustersize);
-
- last_cluster_blkno = prev_blkno + ((num_clusters - 1) * bpc);
- src_blkno = last_cluster_blkno + (to_move * blks_per_bucket);
+ BUG_ON(le16_to_cpu(bucket_xh(first)->xh_num_buckets) < num_buckets);
+ BUG_ON(OCFS2_XATTR_BUCKET_SIZE == OCFS2_SB(sb)->s_clustersize);
mlog(0, "move half of xattrs in cluster %llu to %llu\n",
- (unsigned long long)prev_blkno, (unsigned long long)new_blkno);
-
- /* The first bucket of the original extent */
- old_first = ocfs2_xattr_bucket_new(inode);
- /* The first bucket of the new extent */
- new_first = ocfs2_xattr_bucket_new(inode);
- if (!old_first || !new_first) {
- ret = -ENOMEM;
- mlog_errno(ret);
- goto out;
- }
-
- ret = ocfs2_read_xattr_bucket(old_first, prev_blkno);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- /*
- * We need to update the 1st half of the new extent, and we
- * need to update the first bucket of the old extent.
- */
- credits = ((to_move + 1) * blks_per_bucket) + handle->h_buffer_credits;
- ret = ocfs2_extend_trans(handle, credits);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ (unsigned long long)last_cluster_blkno, (unsigned long long)new_blkno);
- ret = ocfs2_xattr_bucket_journal_access(handle, old_first,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_mv_xattr_buckets(inode, handle, bucket_blkno(first),
+ last_cluster_blkno, new_blkno,
+ to_move, first_hash);
if (ret) {
mlog_errno(ret);
goto out;
}
- for (i = 0; i < to_move; i++) {
- ret = ocfs2_cp_xattr_bucket(inode, handle,
- src_blkno + (i * blks_per_bucket),
- new_blkno + (i * blks_per_bucket),
- 1);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
- }
-
- /*
- * Get the new bucket ready before we dirty anything
- * (This actually shouldn't fail, because we already dirtied
- * it once in ocfs2_cp_xattr_bucket()).
- */
- ret = ocfs2_read_xattr_bucket(new_first, new_blkno);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
- ret = ocfs2_xattr_bucket_journal_access(handle, new_first,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- /* Now update the headers */
- le16_add_cpu(&bucket_xh(old_first)->xh_num_buckets, -to_move);
- ocfs2_xattr_bucket_journal_dirty(handle, old_first);
-
- bucket_xh(new_first)->xh_num_buckets = cpu_to_le16(to_move);
- ocfs2_xattr_bucket_journal_dirty(handle, new_first);
-
- if (first_hash)
- *first_hash = le32_to_cpu(bucket_xh(new_first)->xh_entries[0].xe_name_hash);
+ /* This is the first bucket that got moved */
+ src_blkno = last_cluster_blkno + (to_move * blks_per_bucket);
/*
- * If the target bucket is anywhere past src_blkno, we moved
- * it to the new extent. We need to update first_bh and header_bh.
+ * If the target bucket was part of the moved buckets, we need to
+ * update first and target.
*/
- if ((*header_bh)->b_blocknr >= src_blkno) {
- /* We're done with old_first, so we can re-use it. */
- ocfs2_xattr_bucket_relse(old_first);
-
+ if (bucket_blkno(target) >= src_blkno) {
/* Find the block for the new target bucket */
src_blkno = new_blkno +
- ((*header_bh)->b_blocknr - src_blkno);
+ (bucket_blkno(target) - src_blkno);
+
+ ocfs2_xattr_bucket_relse(first);
+ ocfs2_xattr_bucket_relse(target);
/*
- * This shouldn't fail - the buffers are in the
+ * These shouldn't fail - the buffers are in the
* journal from ocfs2_cp_xattr_bucket().
*/
- ret = ocfs2_read_xattr_bucket(old_first, src_blkno);
+ ret = ocfs2_read_xattr_bucket(first, new_blkno);
if (ret) {
mlog_errno(ret);
goto out;
}
+ ret = ocfs2_read_xattr_bucket(target, src_blkno);
+ if (ret)
+ mlog_errno(ret);
- brelse(*first_bh);
- *first_bh = new_first->bu_bhs[0];
- get_bh(*first_bh);
-
- brelse(*header_bh);
- *header_bh = old_first->bu_bhs[0];
- get_bh(*header_bh);
}
out:
- ocfs2_xattr_bucket_free(new_first);
- ocfs2_xattr_bucket_free(old_first);
-
return ret;
}
/*
* Hey, if we're overwriting t_bucket, what difference does
* ACCESS_CREATE vs ACCESS_WRITE make? Well, if we allocated a new
- * cluster to fill, we came here from ocfs2_cp_xattr_cluster(), and
- * it is really new - ACCESS_CREATE is required. But we also
- * might have moved data out of t_bucket before extending back
- * into it. ocfs2_add_new_xattr_bucket() can do this - its call
- * to ocfs2_add_new_xattr_cluster() may have created a new extent
+ * cluster to fill, we came here from
+ * ocfs2_mv_xattr_buckets(), and it is really new -
+ * ACCESS_CREATE is required. But we also might have moved data
+ * out of t_bucket before extending back into it.
+ * ocfs2_add_new_xattr_bucket() can do this - its call to
+ * ocfs2_add_new_xattr_cluster() may have created a new extent
* and copied out the end of the old extent. Then it re-extends
* the old extent back to create space for new xattrs. That's
* how we get here, and the bucket isn't really new.
}
/*
- * src_blk points to the last cluster of an existing extent. to_blk
- * points to a newly allocated extent. We copy the cluster over to the
- * new extent, initializing its xh_num_buckets. The old extent's
- * xh_num_buckets shrinks by the same amount.
+ * src_blk points to the start of an existing extent. last_blk points to
+ * last cluster in that extent. to_blk points to a newly allocated
+ * extent. We copy the buckets from the cluster at last_blk to the new
+ * extent. If start_bucket is non-zero, we skip that many buckets before
+ * we start copying. The new extent's xh_num_buckets gets set to the
+ * number of buckets we copied. The old extent's xh_num_buckets shrinks
+ * by the same amount.
*/
-static int ocfs2_cp_xattr_cluster(struct inode *inode,
- handle_t *handle,
- struct buffer_head *first_bh,
- u64 src_blk,
- u64 to_blk,
+static int ocfs2_mv_xattr_buckets(struct inode *inode, handle_t *handle,
+ u64 src_blk, u64 last_blk, u64 to_blk,
+ unsigned int start_bucket,
u32 *first_hash)
{
int i, ret, credits;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
int num_buckets = ocfs2_xattr_buckets_per_cluster(osb);
struct ocfs2_xattr_bucket *old_first, *new_first;
- mlog(0, "cp xattrs from cluster %llu to %llu\n",
- (unsigned long long)src_blk, (unsigned long long)to_blk);
+ mlog(0, "mv xattrs from cluster %llu to %llu\n",
+ (unsigned long long)last_blk, (unsigned long long)to_blk);
+
+ BUG_ON(start_bucket >= num_buckets);
+ if (start_bucket) {
+ num_buckets -= start_bucket;
+ last_blk += (start_bucket * blks_per_bucket);
+ }
/* The first bucket of the original extent */
old_first = ocfs2_xattr_bucket_new(inode);
goto out;
}
- ret = ocfs2_read_xattr_bucket(old_first, first_bh->b_blocknr);
+ ret = ocfs2_read_xattr_bucket(old_first, src_blk);
if (ret) {
mlog_errno(ret);
goto out;
}
/*
- * We need to update the first bucket of the old extent and the
- * entire first cluster of the new extent.
+ * We need to update the first bucket of the old extent and all
+ * the buckets going to the new extent.
*/
- credits = blks_per_bucket + bpc + handle->h_buffer_credits;
+ credits = ((num_buckets + 1) * blks_per_bucket) +
+ handle->h_buffer_credits;
ret = ocfs2_extend_trans(handle, credits);
if (ret) {
mlog_errno(ret);
for (i = 0; i < num_buckets; i++) {
ret = ocfs2_cp_xattr_bucket(inode, handle,
- src_blk + (i * blks_per_bucket),
+ last_blk + (i * blks_per_bucket),
to_blk + (i * blks_per_bucket),
1);
if (ret) {
*/
static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode,
handle_t *handle,
- struct buffer_head **first_bh,
- struct buffer_head **header_bh,
+ struct ocfs2_xattr_bucket *first,
+ struct ocfs2_xattr_bucket *target,
u64 new_blk,
- u64 prev_blk,
u32 prev_clusters,
u32 *v_start,
int *extend)
{
- int ret = 0;
- int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
+ int ret;
mlog(0, "adjust xattrs from cluster %llu len %u to %llu\n",
- (unsigned long long)prev_blk, prev_clusters,
+ (unsigned long long)bucket_blkno(first), prev_clusters,
(unsigned long long)new_blk);
- if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1)
+ if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1) {
ret = ocfs2_mv_xattr_bucket_cross_cluster(inode,
handle,
- first_bh,
- header_bh,
+ first, target,
new_blk,
- prev_blk,
prev_clusters,
v_start);
- else {
- u64 last_blk = prev_blk + bpc * (prev_clusters - 1);
-
- if (prev_clusters > 1 && (*header_bh)->b_blocknr != last_blk)
- ret = ocfs2_cp_xattr_cluster(inode, handle, *first_bh,
- last_blk, new_blk,
+ if (ret)
+ mlog_errno(ret);
+ } else {
+ /* The start of the last cluster in the first extent */
+ u64 last_blk = bucket_blkno(first) +
+ ((prev_clusters - 1) *
+ ocfs2_clusters_to_blocks(inode->i_sb, 1));
+
+ if (prev_clusters > 1 && bucket_blkno(target) != last_blk) {
+ ret = ocfs2_mv_xattr_buckets(inode, handle,
+ bucket_blkno(first),
+ last_blk, new_blk, 0,
v_start);
- else {
+ if (ret)
+ mlog_errno(ret);
+ } else {
ret = ocfs2_divide_xattr_cluster(inode, handle,
last_blk, new_blk,
v_start);
+ if (ret)
+ mlog_errno(ret);
- if ((*header_bh)->b_blocknr == last_blk && extend)
+ if ((bucket_blkno(target) == last_blk) && extend)
*extend = 0;
}
}
*/
static int ocfs2_add_new_xattr_cluster(struct inode *inode,
struct buffer_head *root_bh,
- struct buffer_head **first_bh,
- struct buffer_head **header_bh,
+ struct ocfs2_xattr_bucket *first,
+ struct ocfs2_xattr_bucket *target,
u32 *num_clusters,
u32 prev_cpos,
- u64 prev_blkno,
int *extend,
struct ocfs2_xattr_set_ctxt *ctxt)
{
mlog(0, "Add new xattr cluster for %llu, previous xattr hash = %u, "
"previous xattr blkno = %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno,
- prev_cpos, (unsigned long long)prev_blkno);
+ prev_cpos, (unsigned long long)bucket_blkno(first));
ocfs2_init_xattr_tree_extent_tree(&et, inode, root_bh);
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_xb(handle, inode, root_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
goto leave;
mlog(0, "Allocating %u clusters at block %u for xattr in inode %llu\n",
num_bits, bit_off, (unsigned long long)OCFS2_I(inode)->ip_blkno);
- if (prev_blkno + prev_clusters * bpc == block &&
+ if (bucket_blkno(first) + (prev_clusters * bpc) == block &&
(prev_clusters + num_bits) << osb->s_clustersize_bits <=
OCFS2_MAX_XATTR_TREE_LEAF_SIZE) {
/*
} else {
ret = ocfs2_adjust_xattr_cross_cluster(inode,
handle,
- first_bh,
- header_bh,
+ first,
+ target,
block,
- prev_blkno,
prev_clusters,
&v_start,
extend);
}
/*
- * Add new xattr bucket in an extent record and adjust the buckets accordingly.
- * xb_bh is the ocfs2_xattr_block.
- * We will move all the buckets starting from header_bh to the next place. As
- * for this one, half num of its xattrs will be moved to the next one.
+ * Add new xattr bucket in an extent record and adjust the buckets
+ * accordingly. xb_bh is the ocfs2_xattr_block, and target is the
+ * bucket we want to insert into.
+ *
+ * In the easy case, we will move all the buckets after target down by
+ * one. Half of target's xattrs will be moved to the next bucket.
*
- * We will allocate a new cluster if current cluster is full and adjust
- * header_bh and first_bh if the insert place is moved to the new cluster.
+ * If current cluster is full, we'll allocate a new one. This may not
+ * be contiguous. The underlying calls will make sure that there is
+ * space for the insert, shifting buckets around if necessary.
+ * 'target' may be moved by those calls.
*/
static int ocfs2_add_new_xattr_bucket(struct inode *inode,
struct buffer_head *xb_bh,
- struct buffer_head *header_bh,
+ struct ocfs2_xattr_bucket *target,
struct ocfs2_xattr_set_ctxt *ctxt)
{
- struct ocfs2_xattr_header *first_xh = NULL;
- struct buffer_head *first_bh = NULL;
struct ocfs2_xattr_block *xb =
(struct ocfs2_xattr_block *)xb_bh->b_data;
struct ocfs2_xattr_tree_root *xb_root = &xb->xb_attrs.xb_root;
struct ocfs2_extent_list *el = &xb_root->xt_list;
- struct ocfs2_xattr_header *xh =
- (struct ocfs2_xattr_header *)header_bh->b_data;
- u32 name_hash = le32_to_cpu(xh->xh_entries[0].xe_name_hash);
- struct super_block *sb = inode->i_sb;
- struct ocfs2_super *osb = OCFS2_SB(sb);
+ u32 name_hash =
+ le32_to_cpu(bucket_xh(target)->xh_entries[0].xe_name_hash);
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
int ret, num_buckets, extend = 1;
u64 p_blkno;
u32 e_cpos, num_clusters;
/* The bucket at the front of the extent */
struct ocfs2_xattr_bucket *first;
- mlog(0, "Add new xattr bucket starting form %llu\n",
- (unsigned long long)header_bh->b_blocknr);
+ mlog(0, "Add new xattr bucket starting from %llu\n",
+ (unsigned long long)bucket_blkno(target));
+ /* The first bucket of the original extent */
first = ocfs2_xattr_bucket_new(inode);
if (!first) {
ret = -ENOMEM;
goto out;
}
- /*
- * Add refrence for header_bh here because it may be
- * changed in ocfs2_add_new_xattr_cluster and we need
- * to free it in the end.
- */
- get_bh(header_bh);
-
ret = ocfs2_xattr_get_rec(inode, name_hash, &p_blkno, &e_cpos,
&num_clusters, el);
if (ret) {
goto out;
}
- ret = ocfs2_read_block(inode, p_blkno, &first_bh, NULL);
+ ret = ocfs2_read_xattr_bucket(first, p_blkno);
if (ret) {
mlog_errno(ret);
goto out;
}
num_buckets = ocfs2_xattr_buckets_per_cluster(osb) * num_clusters;
- first_xh = (struct ocfs2_xattr_header *)first_bh->b_data;
-
- if (num_buckets == le16_to_cpu(first_xh->xh_num_buckets)) {
+ if (num_buckets == le16_to_cpu(bucket_xh(first)->xh_num_buckets)) {
+ /*
+ * This can move first+target if the target bucket moves
+ * to the new extent.
+ */
ret = ocfs2_add_new_xattr_cluster(inode,
xb_bh,
- &first_bh,
- &header_bh,
+ first,
+ target,
&num_clusters,
e_cpos,
- p_blkno,
&extend,
ctxt);
if (ret) {
}
if (extend) {
- /* These bucket reads should be cached */
- ret = ocfs2_read_xattr_bucket(first, first_bh->b_blocknr);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
ret = ocfs2_extend_xattr_bucket(inode,
ctxt->handle,
- first, header_bh->b_blocknr,
+ first,
+ bucket_blkno(target),
num_clusters);
if (ret)
mlog_errno(ret);
}
out:
- brelse(first_bh);
- brelse(header_bh);
ocfs2_xattr_bucket_free(first);
+
return ret;
}
{
int ret, offset;
u64 value_blk;
- struct buffer_head *value_bh = NULL;
- struct ocfs2_xattr_value_root *xv;
struct ocfs2_xattr_entry *xe;
struct ocfs2_xattr_header *xh = bucket_xh(bucket);
size_t blocksize = inode->i_sb->s_blocksize;
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_access = ocfs2_journal_access,
+ };
xe = &xh->xh_entries[xe_off];
/* We don't allow ocfs2_xattr_value to be stored in different block. */
BUG_ON(value_blk != (offset + OCFS2_XATTR_ROOT_SIZE - 1) / blocksize);
- value_bh = bucket->bu_bhs[value_blk];
- BUG_ON(!value_bh);
+ vb.vb_bh = bucket->bu_bhs[value_blk];
+ BUG_ON(!vb.vb_bh);
- xv = (struct ocfs2_xattr_value_root *)
- (value_bh->b_data + offset % blocksize);
+ vb.vb_xv = (struct ocfs2_xattr_value_root *)
+ (vb.vb_bh->b_data + offset % blocksize);
ret = ocfs2_xattr_bucket_journal_access(ctxt->handle, bucket,
OCFS2_JOURNAL_ACCESS_WRITE);
*/
mlog(0, "truncate %u in xattr bucket %llu to %d bytes.\n",
xe_off, (unsigned long long)bucket_blkno(bucket), len);
- ret = ocfs2_xattr_value_truncate(inode, value_bh, xv, len, ctxt);
+ ret = ocfs2_xattr_value_truncate(inode, &vb, len, ctxt);
if (ret) {
mlog_errno(ret);
goto out_dirty;
goto out;
}
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_xb(handle, inode, root_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out_commit;
ret = ocfs2_add_new_xattr_bucket(inode,
xs->xattr_bh,
- xs->bucket->bu_bhs[0],
+ xs->bucket,
ctxt);
if (ret) {
mlog_errno(ret);
goto out;
}
+ /*
+ * ocfs2_add_new_xattr_bucket() will have updated
+ * xs->bucket if it moved, but it will not have updated
+ * any of the other search fields. Thus, we drop it and
+ * re-search. Everything should be cached, so it'll be
+ * quick.
+ */
ocfs2_xattr_bucket_relse(xs->bucket);
-
ret = ocfs2_xattr_index_block_find(inode, xs->xattr_bh,
xi->name_index,
xi->name, xs);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff