Grub folks, ping on this? It has 2 reviews and testing but I don't see it
merged yet.
Thanks,
-Eric
On 12/4/24 7:50 AM, Eric Sandeen wrote:
> When large extent counter / NREXT64 support was added to grub, it missed
> a couple of direct reads of nextents which need to be changed to the new
> NREXT64-aware helper as well. Without this, we'll have mis-reads of some
> directories with this feature enabled.
>
> (The large extent counter fix likely raced on merge with
> 07318ee7e ("fs/xfs: Fix XFS directory extent parsing") which added the new
> direct nextents reads just prior, causing this issue.)
>
> Fixes: aa7c1322671e ("fs/xfs: Add large extent counters incompat feature
> support")
> Signed-off-by: Eric Sandeen <[email protected]>
> ---
>
> diff --git a/grub-core/fs/xfs.c b/grub-core/fs/xfs.c
> index 8e02ab4a3..92046f9bd 100644
> --- a/grub-core/fs/xfs.c
> +++ b/grub-core/fs/xfs.c
> @@ -926,7 +926,7 @@ grub_xfs_iterate_dir (grub_fshelp_node_t dir,
> * Leaf and tail information are only in the data block if the
> number
> * of extents is 1.
> */
> - if (dir->inode.nextents == grub_cpu_to_be32_compile_time (1))
> + if (grub_xfs_get_inode_nextents(&dir->inode) == 1)
> {
> struct grub_xfs_dirblock_tail *tail = grub_xfs_dir_tail
> (dir->data, dirblock);
>
> @@ -980,7 +980,7 @@ grub_xfs_iterate_dir (grub_fshelp_node_t dir,
> * The expected number of directory entries is only tracked for
> the
> * single extent case.
> */
> - if (dir->inode.nextents == grub_cpu_to_be32_compile_time (1))
> + if (grub_xfs_get_inode_nextents(&dir->inode) == 1)
> {
> /* Check if last direntry in this block is reached. */
> entries--;
>
>
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