From 9cf05b416d3324457f1dd8be35f4eaa7a9640bed Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Sat, 6 Mar 2010 10:01:46 +0100
Subject: [PATCH] [LogFS] Remove h_version field
Incompatible change: h_compr is moved up so the padding is all in one chunk.
---
fs/logfs/journal.c | 7 ++++---
fs/logfs/logfs_abi.h | 4 +---
2 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c
index 57eb4fb444a9..6ad30a4c9052 100644
--- a/fs/logfs/journal.c
+++ b/fs/logfs/journal.c
@@ -419,12 +419,13 @@ static size_t __logfs_write_header(struct logfs_super *super,
{
jh->h_len = cpu_to_be16(len);
jh->h_type = cpu_to_be16(type);
- jh->h_version = cpu_to_be16(++super->s_last_version);
jh->h_datalen = cpu_to_be16(datalen);
jh->h_compr = compr;
jh->h_pad[0] = 'H';
- jh->h_pad[1] = 'A';
- jh->h_pad[2] = 'T';
+ jh->h_pad[1] = 'E';
+ jh->h_pad[2] = 'A';
+ jh->h_pad[3] = 'D';
+ jh->h_pad[4] = 'R';
jh->h_crc = logfs_crc32(jh, len + sizeof(*jh), 4);
return ALIGN(len, 16) + sizeof(*jh);
}
diff --git a/fs/logfs/logfs_abi.h b/fs/logfs/logfs_abi.h
index 8d4dd3de551e..d8cc95734a60 100644
--- a/fs/logfs/logfs_abi.h
+++ b/fs/logfs/logfs_abi.h
@@ -422,7 +422,6 @@ SIZE_CHECK(logfs_segment_entry, 8);
* not including header
* @h_datalen: length of uncompressed data
* @h_type: JE type
- * @h_version: unnormalized version of journal entry
* @h_compr: compression type
* @h_pad: reserved
*/
@@ -431,9 +430,8 @@ struct logfs_journal_header {
__be16 h_len;
__be16 h_datalen;
__be16 h_type;
- __be16 h_version;
__u8 h_compr;
- __u8 h_pad[3];
+ __u8 h_pad[5];
};
SIZE_CHECK(logfs_journal_header, 16);