The HFS+ support in the kernel currently will mount an HFS+ volume read-only if
the volume header has the attribute bit set that indicates there is a journal.
The kernel does this because there is no support for a journalled HFS+ volume.
The problem is that this is only half of what needs to be checked to see if
there really is a journal. There is also an entry in the volume header that
tells you where to find the journal info block. In the kernel version of the
kernel, this 4 byte block is labeled reserved. This patch identifies the journal
info block in the header.
Signed-off-by: Warren Turkal <wt@xxxxxxxxxxxxxxxx>
---
fs/hfsplus/hfsplus_raw.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
index fe99fe8..14f1dd8 100644
--- a/fs/hfsplus/hfsplus_raw.h
+++ b/fs/hfsplus/hfsplus_raw.h
@@ -94,7 +94,7 @@ struct hfsplus_vh {
__be16 version;
__be32 attributes;
__be32 last_mount_vers;
- u32 reserved;
+ __be32 journal_info_block;
__be32 create_date;
__be32 modify_date;
--
1.5.6.3
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
