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

ocfs2: temporarily remove extent map caching

Browse Source 
The code in extent_map.c is not prepared to deal with a subtree being
rotated between lookups. This can happen when filling holes in sparse files.
Instead of a lengthy patch to update the code (which would likely lose the
benefit of caching subtree roots), we remove most of the algorithms and
implement a simple path based lookup. A less ambitious extent caching scheme
will be added in a later patch.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Mark Fasheh
2007-01-17 12:31:35 -08:00
parent dcd0538ff4
commit 363041a5f7
14 changed files with 110 additions and 1010 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
fs/ocfs2/inode.c
View File

@@ -1003,9 +1003,6 @@ void ocfs2_clear_inode(struct inode *inode)
"Clear inode of %llu, inode has io markers\n",
(unsigned long long)oi->ip_blkno);
ocfs2_extent_map_drop(inode, 0);
ocfs2_extent_map_init(inode);
status = ocfs2_drop_inode_locks(inode);
if (status < 0)
mlog_errno(status);
@@ -1102,8 +1099,7 @@ struct buffer_head *ocfs2_bread(struct inode *inode,
return NULL;
}
tmperr = ocfs2_extent_map_get_blocks(inode, block, 1,
&p_blkno, NULL);
tmperr = ocfs2_extent_map_get_blocks(inode, block, &p_blkno, NULL);
if (tmperr < 0) {
mlog_errno(tmperr);
goto fail;