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Implement attribute move out in case attribute is to small to add 

compressed_size field to it and we have no free space in the current
mft record.

(Logical change 1.642)
edge.strict_endians
(none)!yura 2004-11-21 13:39:13 +00:00
parent 8dcb7e6852
commit 173cbd1d54
1 changed files with 36 additions and 21 deletions
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57
libntfs/attrib.c
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@ -3731,9 +3731,6 @@ static int ntfs_attr_make_resident(ntfs_attr *na, ntfs_attr_search_ctx *ctx)
* isn't set. So until we have no API for updating index entries it's the best
* choice.
*
* WARNING: Don't enable set/clean sparse bit code until complete attribute
* move out in case it have no spase for mapping pairs.
*
* On success return 0 and on error return -1 with errno set to the error code.
* The following error codes are defined:
* ENOMEM - Not enough memory to complete operation.
@ -3747,8 +3744,9 @@ int ntfs_attr_update_mapping_pairs(ntfs_attr *na)
ATTR_RECORD *a;
VCN stop_vcn;
int err, mp_size, cur_max_mp_size, exp_max_mp_size;
BOOL finished_build = FALSE;
BOOL finished_build;
retry:
if (!na || !na->rl) {
Dprintf("%s(): Invalid parameters passed.\n", __FUNCTION__);
errno = EINVAL;
@ -3780,6 +3778,7 @@ int ntfs_attr_update_mapping_pairs(ntfs_attr *na)
/* Fill attribute records with new mapping pairs. */
stop_vcn = 0;
finished_build = FALSE;
while (!ntfs_attr_lookup(na->type, na->name, na->name_len,
CASE_SENSITIVE, 0, NULL, 0, ctx)) {
a = ctx->attr;
@ -3821,12 +3820,42 @@ int ntfs_attr_update_mapping_pairs(ntfs_attr *na)
sparse = ntfs_rl_sparse(na->rl);
if (sparse == -1) {
Dprintf("%s(): Bad runlist.");
Dprintf("%s(): Bad runlist.\n", __FUNCTION__);
err = EIO;
goto put_err_out;
}
if (sparse && !(a->flags & (ATTR_IS_SPARSE |
ATTR_IS_COMPRESSED))) {
/*
* We need to move attribute to another mft
* record, if attribute is to small to add
* compressed_size field to it and we have no
* free space in the current mft record.
*/
if ((le32_to_cpu(a->length) - le16_to_cpu(
a->mapping_pairs_offset)
== 8) && !(le32_to_cpu(
m->bytes_allocated) -
le32_to_cpu(m->bytes_in_use))) {
if (!NInoAttrList(na->ni)) {
ntfs_attr_put_search_ctx(ctx);
if (ntfs_inode_add_attrlist(
na->ni))
return -1;
goto retry;
}
if (ntfs_attr_record_move_away(ctx,
8)) {
Dprintf("%s(): Failed to move "
"attribute to another "
"extent. Aborting...\n",
__FUNCTION__);
err = errno;
goto put_err_out;
}
ntfs_attr_put_search_ctx(ctx);
goto retry;
}
if (!(le32_to_cpu(a->length) - le16_to_cpu(
a->mapping_pairs_offset))) {
Dprintf("%s(): Size of the space "
@ -3889,20 +3918,6 @@ int ntfs_attr_update_mapping_pairs(ntfs_attr *na)
*/
exp_max_mp_size = le32_to_cpu(m->bytes_allocated) -
le32_to_cpu(m->bytes_in_use) + cur_max_mp_size;
#if 0
/*
* If we have no space for mapping pairs (we can receive such
* attribute after allocating spase for compressed_size) then
* move attribute to different mft record with more free space.
*/
if (!exp_max_mp_size) {
// TODO
Dprintf("%s(): Here we shall move attribute to the "
"another extent.\n", __FUNCTION__);
err = ENOTSUP;
goto put_err_out;
}
#endif
/* Test mapping pairs for fitting in the current mft record. */
if (mp_size > exp_max_mp_size) {
/*
@ -3924,7 +3939,7 @@ int ntfs_attr_update_mapping_pairs(ntfs_attr *na)
errno = ENOSPC;
return -1;
}
return ntfs_attr_update_mapping_pairs(na);
goto retry;
}
/* Add attribute list if it isn't present, and retry. */
@ -3938,7 +3953,7 @@ int ntfs_attr_update_mapping_pairs(ntfs_attr *na)
errno = err;
return -1;
}
return ntfs_attr_update_mapping_pairs(na);
goto retry;
}
/*