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| author | Srinivasa Ds <srinivasa@in.ibm.com> | 2006-11-30 12:34:55 +0300 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-11-30 18:37:36 +0300 |
| commit | 0da3585e1ef650d3224b4d6f9799558d1d99fa1e (patch) | |
| tree | 4261980ac1afe51fe2e017f60d50f73d646e0296 /fs/gfs2 | |
| parent | 77386e1f662f104680da7885d32e068e4b11b882 (diff) | |
| download | linux-0da3585e1ef650d3224b4d6f9799558d1d99fa1e.tar.xz | |
[GFS2] Mount problem with the GFS2 code
While mounting the gfs2 filesystem,our test team had a problem and we
got this error message.
=======================================================
GFS2: fsid=: Trying to join cluster "lock_nolock", "dasde1"
GFS2: fsid=dasde1.0: Joined cluster. Now mounting FS...
GFS2: not a GFS2 filesystem
GFS2: fsid=dasde1.0: can't read superblock: -22
==========================================================================
On debugging further we found that problem is while reading the super
block(gfs2_read_super) and comparing the magic number in it.
When I replace the submit_bio() call(present in gfs2_read_super) with
the sb_getblk() and ll_rw_block(), mount operation succeded.
On further analysis we found that before calling submit_bio(),
bio->bi_sector was set to "sector" variable. This "sector" variable has
the same value of bh->b_blocknr(block number). Hence there is a need to
multiply this valuwith (blocksize >> 9)(9 because,sector size
2^9,samething happens in ll_rw_block also, before calling submit_bio()).
So I have developed the patch which solves this problem. Please let me
know your comments.
================================================================
Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2')
| -rw-r--r-- | fs/gfs2/super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 1408c5f31379..3b2272742796 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -199,7 +199,7 @@ struct page *gfs2_read_super(struct super_block *sb, sector_t sector) return NULL; } - bio->bi_sector = sector; + bio->bi_sector = sector * (sb->s_blocksize >> 9); bio->bi_bdev = sb->s_bdev; bio_add_page(bio, page, PAGE_SIZE, 0); |