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authorSteven Whitehouse <swhiteho@redhat.com>2006-10-13 17:25:45 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-10-20 09:13:40 -0400
commit23591256d61354e20f12e98d7a496ad5c23de74c (patch)
tree3013a6e873a6e0a1d55fbace2fba638a978108c0 /fs/gfs2/log.c
parent42fb00838a644d03f9a2a5fbbe0b668a5ff5df4d (diff)
downloadop-kernel-dev-23591256d61354e20f12e98d7a496ad5c23de74c.zip
op-kernel-dev-23591256d61354e20f12e98d7a496ad5c23de74c.tar.gz
[GFS2] Fix bmap to map extents properly
This fix means that bmap will map extents of the length requested by the VFS rather than guessing at it, or just mapping one block at a time. The other callers of gfs2_block_map are audited to ensure they send the correct max extent lengths (i.e. set bh->b_size correctly). Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/log.c')
-rw-r--r--fs/gfs2/log.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 72eec65..0cace3d 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -312,10 +312,12 @@ void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks)
static u64 log_bmap(struct gfs2_sbd *sdp, unsigned int lbn)
{
+ struct inode *inode = sdp->sd_jdesc->jd_inode;
int error;
- struct buffer_head bh_map;
+ struct buffer_head bh_map = { .b_state = 0, .b_blocknr = 0 };
- error = gfs2_block_map(sdp->sd_jdesc->jd_inode, lbn, 0, &bh_map, 1);
+ bh_map.b_size = 1 << inode->i_blkbits;
+ error = gfs2_block_map(inode, lbn, 0, &bh_map);
if (error || !bh_map.b_blocknr)
printk(KERN_INFO "error=%d, dbn=%llu lbn=%u", error, bh_map.b_blocknr, lbn);
gfs2_assert_withdraw(sdp, !error && bh_map.b_blocknr);
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