diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-03 00:25:53 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-11-09 16:22:35 -0800 |
| commit | 61ac9e400eb6c0c3d3e9da24c78176fbe272fc1b (patch) | |
| tree | db95ef9a3dfcb838486e187b5ac26d58521f77d7 /fs | |
| parent | 092afb745d0dfdd6cf5ed86ed301023285700fd2 (diff) | |
nilfs2: fix dirty page accounting leak causing hang at write
commit b1e19e5601277845b4f17ecd7c9ba04f73ee11aa upstream.
Bruno Prémont and Dunphy, Bill noticed me that NILFS will certainly
hang on ARM-based targets.
I found this was caused by an underflow of dirty pages counter. A
b-tree cache routine was marking page dirty without adjusting page
account information.
This fixes the dirty page accounting leak and resolves the hang on
arm-based targets.
Reported-by: Bruno Prémont <bonbons@linux-vserver.org>
Reported-by: Dunphy, Bill <WDunphy@tandbergdata.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nilfs2/btnode.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c index 5be2c8b6549a..862ad299aad0 100644 --- a/fs/nilfs2/btnode.c +++ b/fs/nilfs2/btnode.c @@ -276,8 +276,7 @@ void nilfs_btnode_commit_change_key(struct address_space *btnc, "invalid oldkey %lld (newkey=%lld)", (unsigned long long)oldkey, (unsigned long long)newkey); - if (!test_set_buffer_dirty(obh) && TestSetPageDirty(opage)) - BUG(); + nilfs_btnode_mark_dirty(obh); spin_lock_irq(&btnc->tree_lock); radix_tree_delete(&btnc->page_tree, oldkey); |