We maintain the inode's logged_trans to avoid reloging it, but if we iput
the inode and reread it, we'll get logged_trans to zero.
So when an inode is still in log tree, and transaction is not committed yet,
we do not iput the inode.
Signed-off-by: Liu Bo <liubo2009@xxxxxxxxxxxxxx>
---
fs/btrfs/inode.c | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a1f9155..10375fc 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6821,8 +6821,15 @@ int btrfs_drop_inode(struct inode *inode)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
- if (btrfs_root_refs(&root->root_item) == 0 &&
- !btrfs_is_free_space_inode(root, inode))
+ /*
+ * If the inode has been in the log tree and the transaction is not
+ * committed yet, then we need to keep this inode in cache.
+ */
+ if (BTRFS_I(inode)->last_trans >= root->fs_info->generation &&
+ BTRFS_I(inode)->logged_trans >= BTRFS_I(inode)->last_trans)
+ return 0;
+ else if (btrfs_root_refs(&root->root_item) == 0 &&
+ !btrfs_is_free_space_inode(root, inode))
return 1;
else
return generic_drop_inode(inode);
--
1.6.5.2
--
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