name_rmt->valuelen = 0;
name_rmt->valueblk = 0;
args->rmtblkno = 1;
- args->rmtblkcnt = XFS_B_TO_FSB(mp, args->valuelen);
+ args->rmtblkcnt = xfs_attr3_rmt_blocks(mp, args->valuelen);
}
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, xfs_attr3_leaf_name(leaf, args->index),
STATIC void
xfs_attr3_leaf_compact(
struct xfs_da_args *args,
- struct xfs_attr3_icleaf_hdr *ichdr_d,
+ struct xfs_attr3_icleaf_hdr *ichdr_dst,
struct xfs_buf *bp)
{
- xfs_attr_leafblock_t *leaf_s, *leaf_d;
- struct xfs_attr3_icleaf_hdr ichdr_s;
+ struct xfs_attr_leafblock *leaf_src;
+ struct xfs_attr_leafblock *leaf_dst;
+ struct xfs_attr3_icleaf_hdr ichdr_src;
struct xfs_trans *trans = args->trans;
struct xfs_mount *mp = trans->t_mountp;
char *tmpbuffer;
trace_xfs_attr_leaf_compact(args);
tmpbuffer = kmem_alloc(XFS_LBSIZE(mp), KM_SLEEP);
- ASSERT(tmpbuffer != NULL);
memcpy(tmpbuffer, bp->b_addr, XFS_LBSIZE(mp));
memset(bp->b_addr, 0, XFS_LBSIZE(mp));
+ leaf_src = (xfs_attr_leafblock_t *)tmpbuffer;
+ leaf_dst = bp->b_addr;
/*
- * Copy basic information
+ * Copy the on-disk header back into the destination buffer to ensure
+ * all the information in the header that is not part of the incore
+ * header structure is preserved.
*/
- leaf_s = (xfs_attr_leafblock_t *)tmpbuffer;
- leaf_d = bp->b_addr;
- ichdr_s = *ichdr_d; /* struct copy */
- ichdr_d->firstused = XFS_LBSIZE(mp);
- ichdr_d->usedbytes = 0;
- ichdr_d->count = 0;
- ichdr_d->holes = 0;
- ichdr_d->freemap[0].base = xfs_attr3_leaf_hdr_size(leaf_s);
- ichdr_d->freemap[0].size = ichdr_d->firstused - ichdr_d->freemap[0].base;
+ memcpy(bp->b_addr, tmpbuffer, xfs_attr3_leaf_hdr_size(leaf_src));
+
+ /* Initialise the incore headers */
+ ichdr_src = *ichdr_dst; /* struct copy */
+ ichdr_dst->firstused = XFS_LBSIZE(mp);
+ ichdr_dst->usedbytes = 0;
+ ichdr_dst->count = 0;
+ ichdr_dst->holes = 0;
+ ichdr_dst->freemap[0].base = xfs_attr3_leaf_hdr_size(leaf_src);
+ ichdr_dst->freemap[0].size = ichdr_dst->firstused -
+ ichdr_dst->freemap[0].base;
+
+
+ /* write the header back to initialise the underlying buffer */
+ xfs_attr3_leaf_hdr_to_disk(leaf_dst, ichdr_dst);
/*
* Copy all entry's in the same (sorted) order,
* but allocate name/value pairs packed and in sequence.
*/
- xfs_attr3_leaf_moveents(leaf_s, &ichdr_s, 0, leaf_d, ichdr_d, 0,
- ichdr_s.count, mp);
+ xfs_attr3_leaf_moveents(leaf_src, &ichdr_src, 0, leaf_dst, ichdr_dst, 0,
+ ichdr_src.count, mp);
/*
* this logs the entire buffer, but the caller must write the header
* back to the buffer when it is finished modifying it.
struct xfs_attr_leafblock *tmp_leaf;
struct xfs_attr3_icleaf_hdr tmphdr;
- tmp_leaf = kmem_alloc(state->blocksize, KM_SLEEP);
- memset(tmp_leaf, 0, state->blocksize);
- memset(&tmphdr, 0, sizeof(tmphdr));
+ tmp_leaf = kmem_zalloc(state->blocksize, KM_SLEEP);
+ /*
+ * Copy the header into the temp leaf so that all the stuff
+ * not in the incore header is present and gets copied back in
+ * once we've moved all the entries.
+ */
+ memcpy(tmp_leaf, save_leaf, xfs_attr3_leaf_hdr_size(save_leaf));
+
+ memset(&tmphdr, 0, sizeof(tmphdr));
tmphdr.magic = savehdr.magic;
tmphdr.forw = savehdr.forw;
tmphdr.back = savehdr.back;
tmphdr.firstused = state->blocksize;
+
+ /* write the header to the temp buffer to initialise it */
+ xfs_attr3_leaf_hdr_to_disk(tmp_leaf, &tmphdr);
+
if (xfs_attr3_leaf_order(save_blk->bp, &savehdr,
drop_blk->bp, &drophdr)) {
xfs_attr3_leaf_moveents(drop_leaf, &drophdr, 0,
args->index = probe;
args->valuelen = be32_to_cpu(name_rmt->valuelen);
args->rmtblkno = be32_to_cpu(name_rmt->valueblk);
- args->rmtblkcnt = XFS_B_TO_FSB(args->dp->i_mount,
- args->valuelen);
+ args->rmtblkcnt = xfs_attr3_rmt_blocks(
+ args->dp->i_mount,
+ args->valuelen);
return XFS_ERROR(EEXIST);
}
}
ASSERT(memcmp(args->name, name_rmt->name, args->namelen) == 0);
valuelen = be32_to_cpu(name_rmt->valuelen);
args->rmtblkno = be32_to_cpu(name_rmt->valueblk);
- args->rmtblkcnt = XFS_B_TO_FSB(args->dp->i_mount, valuelen);
+ args->rmtblkcnt = xfs_attr3_rmt_blocks(args->dp->i_mount,
+ valuelen);
if (args->flags & ATTR_KERNOVAL) {
args->valuelen = valuelen;
return 0;
args.valuelen = valuelen;
args.value = kmem_alloc(valuelen, KM_SLEEP | KM_NOFS);
args.rmtblkno = be32_to_cpu(name_rmt->valueblk);
- args.rmtblkcnt = XFS_B_TO_FSB(args.dp->i_mount, valuelen);
+ args.rmtblkcnt = xfs_attr3_rmt_blocks(
+ args.dp->i_mount, valuelen);
retval = xfs_attr_rmtval_get(&args);
if (retval)
return retval;
name_rmt = xfs_attr3_leaf_name_remote(leaf, i);
if (name_rmt->valueblk) {
lp->valueblk = be32_to_cpu(name_rmt->valueblk);
- lp->valuelen = XFS_B_TO_FSB(dp->i_mount,
+ lp->valuelen = xfs_attr3_rmt_blocks(dp->i_mount,
be32_to_cpu(name_rmt->valuelen));
lp++;
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff