Hi!
在 2024/7/31 22:16, Christian Brauner 写道:
On Wed, 31 Jul 2024 12:38:35 +0800, yangerkun wrote:
After we switch tmpfs dir operations from simple_dir_operations to
simple_offset_dir_operations, every rename happened will fill new dentry
to dest dir's maple tree(&SHMEM_I(inode)->dir_offsets->mt) with a free
key starting with octx->newx_offset, and then set newx_offset equals to
free key + 1. This will lead to infinite readdir combine with rename
happened at the same time, which fail generic/736 in xfstests(detail show
as below).
[...]
@Chuck, @Jan I did the requested change directly. Please check!
Thanks for applied this patch, the suggestions from Jan and Chuck will
be a separates patch!
---
Applied to the vfs.fixes branch of the vfs/vfs.git tree.
Patches in the vfs.fixes branch should appear in linux-next soon.
Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.
It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.
Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs.fixes
[1/1] libfs: fix infinite directory reads for offset dir
https://git.kernel.org/vfs/vfs/c/fad90bfe412e
