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Restricted compression to volumes with cluster size not greater than 4096

PERMISSION_HANDLING_BRANCH
jpandre 2009-12-09 10:52:21 +00:00
parent 52d5e40f93
commit 029faaabc6
1 changed files with 5 additions and 1 deletions
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6
libntfs-3g/attrib.c
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@ -61,6 +61,7 @@
#include "efs.h"
#define STANDARD_COMPRESSION_UNIT 4
#define MAX_COMPRESSION_CLUSTER_SIZE 4096
ntfschar AT_UNNAMED[] = { const_cpu_to_le16('\0') };
ntfschar STREAM_SDS[] = { const_cpu_to_le16('$'),
@ -450,7 +451,8 @@ ntfs_attr *ntfs_attr_open(ntfs_inode *ni, const ATTR_TYPES type,
* change when stream is wiped out.
*/
a->flags &= ~ATTR_COMPRESSION_MASK;
if (na->ni->flags & FILE_ATTR_COMPRESSED)
if ((na->ni->flags & FILE_ATTR_COMPRESSED)
&& (ni->vol->cluster_size <= MAX_COMPRESSION_CLUSTER_SIZE))
a->flags |= ATTR_IS_COMPRESSED;
}
@ -3677,6 +3679,7 @@ int ntfs_attr_add(ntfs_inode *ni, ATTR_TYPES type,
add_attr_record:
if ((ni->flags & FILE_ATTR_COMPRESSED)
&& (ni->vol->cluster_size <= MAX_COMPRESSION_CLUSTER_SIZE)
&& ((type == AT_DATA)
|| ((type == AT_INDEX_ROOT) && (name == NTFS_INDEX_I30))))
data_flags = ATTR_IS_COMPRESSED;
@ -4641,6 +4644,7 @@ static int ntfs_attr_make_resident(ntfs_attr *na, ntfs_attr_search_ctx *ctx)
*/
if (!na->data_size
&& (na->type == AT_DATA)
&& (na->ni->vol->cluster_size <= MAX_COMPRESSION_CLUSTER_SIZE)
&& (na->ni->flags & FILE_ATTR_COMPRESSED)) {
a->flags |= ATTR_IS_COMPRESSED;
na->data_flags = a->flags;