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| author | Chris Mason | 2009-04-20 21:50:09 +0200 |
|---|---|---|
| committer | Chris Mason | 2009-04-20 21:53:09 +0200 |
| commit | 11c8349b4eb68f2b04cd8ece577377e6c0e5dd4b (patch) | |
| tree | baeaabbe0a10d903ba3e0d6ff90ae9934912fc21 /security | |
| parent | Btrfs: add a priority queue to the async thread helpers (diff) | |
| download | kernel-qcow2-linux-11c8349b4eb68f2b04cd8ece577377e6c0e5dd4b.tar.gz kernel-qcow2-linux-11c8349b4eb68f2b04cd8ece577377e6c0e5dd4b.tar.xz kernel-qcow2-linux-11c8349b4eb68f2b04cd8ece577377e6c0e5dd4b.zip | |
Btrfs: fix oops on page->mapping->host during writepage
The extent_io writepage call updates the writepage index in the inode
as it makes progress. But, it was doing the update after unlocking the page,
which isn't legal because page->mapping can't be trusted once the page
is unlocked.
This lead to an oops, especially common with compression turned on. The
fix here is to update the writeback index before unlocking the page.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions