[PATCH 0/3] fs/fat: fix handling of full disk

[AKASHI Takahiro]

On Tue, Jul 12, 2022 at 10:33:11PM +0000, Heinrich Schuchardt wrote:
> Currently we have two functions with redundant coding to find an empty
> cluster:
> 
> * find_empty_cluster() seeks from the beginning of the FAT table
> * determine_fatent() seeks after a given entry
> 
> Both do not detect the end of the FAT table correctly and return an invalid
> cluster number if no empty entry if found.
> 
> Correctly determine empty FAT entries and full disk correctly.

I hope that you add a test for this specific corner case.

Thanks,
-Takahiro Akashi


> Carve out a function for creating directory entries to avoid code
> duplication.
> 
> Heinrich Schuchardt (3):
>   fs: fat: finding an empty FAT cluster
>   fs: fat: determine_fatent() error handling
>   fs: fat: carve out fat_create_dir_entry()
> 
>  fs/fat/fat_write.c | 161 ++++++++++++++++++++++-----------------------
>  1 file changed, 79 insertions(+), 82 deletions(-)
> 
> --
> 2.30.2
>