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author | Liu Bo <bo.li.liu@oracle.com> | 2016-06-03 17:41:42 -0700 |
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committer | David Sterba <dsterba@suse.com> | 2016-06-06 10:14:40 +0200 |
commit | d865177a5e749827f248f6363f5100d3a2f66b0f (patch) | |
tree | 2c5b0d1c16e2e64f406b309926b176f4458dc599 /fs/btrfs/disk-io.c | |
parent | 65d4f4c151a5fa7b2dacaaf70def3f95001766d7 (diff) | |
download | linux-d865177a5e749827f248f6363f5100d3a2f66b0f.tar.bz2 |
Btrfs: clear uptodate flags of pages in sys_array eb
We set uptodate flag to pages in the temporary sys_array eb,
but do not clear the flag after free eb. As the special
btree inode may still hold a reference on those pages, the
uptodate flag can remain alive in them.
If btrfs_super_chunk_root has been intentionally changed to the
offset of this sys_array eb, reading chunk_root will read content
of sys_array and it will skip our beautiful checks in
btree_readpage_end_io_hook() because of
"pages of eb are uptodate => eb is uptodate"
This adds the 'clear uptodate' part to force it to read from disk.
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
0 files changed, 0 insertions, 0 deletions