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| author | Dave Kleikamp <shaggy@linux.vnet.ibm.com> | 2009-06-16 13:43:22 -0500 |
|---|---|---|
| committer | Dave Kleikamp <shaggy@linux.vnet.ibm.com> | 2009-06-16 13:43:22 -0500 |
| commit | f7c52fd17a7dda42fc9e88c2b2678403419bfe63 (patch) | |
| tree | 51164a3c40bcee5cc43682e945bd7b773a784bc3 /fs/jfs | |
| parent | a525890cb6a2949b644d212ae290b658967d3919 (diff) | |
| download | lwn-f7c52fd17a7dda42fc9e88c2b2678403419bfe63.tar.gz lwn-f7c52fd17a7dda42fc9e88c2b2678403419bfe63.zip | |
jfs: fix regression preventing coalescing of extents
Commit fec1878fe952b994125a3be7c94b1322db586f3b caused a regression in
which contiguous blocks being allocated to the end of an extent were
getting a new extent created. This typically results in files entirely
made up of 1-block extents even though the blocks are contiguous on
disk.
Apparently grub doesn't handle a jfs file being fragmented into too many
extents, since it refuses to boot a kernel from jfs that was created by
the 2.6.30 kernel.
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Reported-by: Alex <alevkovich@tut.by>
Diffstat (limited to 'fs/jfs')
| -rw-r--r-- | fs/jfs/jfs_extent.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c index bbbd5f202e37..41d6045dbeb0 100644 --- a/fs/jfs/jfs_extent.c +++ b/fs/jfs/jfs_extent.c @@ -391,6 +391,7 @@ int extHint(struct inode *ip, s64 offset, xad_t * xp) } XADaddress(xp, xaddr); XADlength(xp, xlen); + XADoffset(xp, prev); /* * only preserve the abnr flag within the xad flags * of the returned hint. |