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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-06-30 15:23:59 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-06-30 15:23:59 +1000 |
| commit | 6da49a292534d31ca391928ea97f8225774dc1e0 (patch) | |
| tree | 060c5f5f40dceb10d4528763bc7fc1ccc88210d9 /fs/inode.c | |
| parent | 17bdc6c0e979ae61879806e4dd93ec3b169d0931 (diff) | |
| parent | ca56a95eedcc95f8fea7b49c87565cd961d74fe2 (diff) | |
Merge remote branch 'origin/master' into next
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/inode.c b/fs/inode.c index 0f7e88a7803f..43566d17d1b8 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -423,7 +423,14 @@ EXPORT_SYMBOL(remove_inode_hash); void end_writeback(struct inode *inode) { might_sleep(); + /* + * We have to cycle tree_lock here because reclaim can be still in the + * process of removing the last page (in __delete_from_page_cache()) + * and we must not free mapping under it. + */ + spin_lock_irq(&inode->i_data.tree_lock); BUG_ON(inode->i_data.nrpages); + spin_unlock_irq(&inode->i_data.tree_lock); BUG_ON(!list_empty(&inode->i_data.private_list)); BUG_ON(!(inode->i_state & I_FREEING)); BUG_ON(inode->i_state & I_CLEAR); |