On Thu, Jan 25, 2024 at 11:59:38AM +0000, fdmanana@xxxxxxxxxx wrote:
> From: Filipe Manana <fdmanana@xxxxxxxx>
>
> commit 8e7f82deb0c0386a03b62e30082574347f8b57d5 upstream.
>
> When opening a directory (opendir(3)) or rewinding it (rewinddir(3)), we
> are not holding the directory's inode locked, and this can result in later
> attempting to add two entries to the directory with the same index number,
> resulting in a transaction abort, with -EEXIST (-17), when inserting the
> second delayed dir index. This results in a trace like the following:
[..]
> Fixes: 9b378f6ad48c ("btrfs: fix infinite directory reads")
> CC: stable@xxxxxxxxxxxxxxx # 6.5+
> Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx>
> Reviewed-by: David Sterba <dsterba@xxxxxxxx>
> Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Based on https://lore.kernel.org/stable/20240126185534.GA2668448@lxhi-087:
Reviewed-by: Eugeniu Rosca <eugeniu.rosca@xxxxxxxxx>
