xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[GFS2] Fix bmap to map extents properly

Browse Source 
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>
This commit is contained in:
Steven Whitehouse
2006-10-13 17:25:45 -04:00
parent 42fb00838a
commit 23591256d6
6 changed files with 21 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
fs/gfs2/log.c
View File

@@ -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);