[PATCH] erofs: avoid unnecessary loops in z_erofs_pcluster_readmore() when read page beyond EOF

[Chao Yu]

On 2023/7/10 12:25, Chunhai Guo wrote:
> z_erofs_pcluster_readmore() may take a long time to loop when the page
> offset is large enough, which is unnecessary should be prevented.
> For example, when the following case is encountered, it will loop 4691368
> times, taking about 27 seconds.
>      - offset = 19217289215
>      - inode_size = 1442672
> 
> Signed-off-by: Chunhai Guo <guochunhai at vivo.com>

Reviewed-by: Chao Yu <chao at kernel.org>

Thanks,