[LogFS] Remove h_version field

Incompatible change: h_compr is moved up so the padding is all in one chunk.

diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c
index 57eb4fb..6ad30a4 100644 (file)
--- 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 8d4dd3d..d8cc957 100644 (file)
--- 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);