Hi, Jaegeuk, Chao, Ming

On 2018/10/15 21:24, Gao Ming wrote:
> Malloc Failure occurs in 32bit Windows, when using fastboot.exe flash the
>  f2fs sparse image filling with  up to 2G chunk size.
> 
> Signed-off-by: Gao Ming <gaomin...@huawei.com>
> ---
>  lib/libf2fs_io.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/lib/libf2fs_io.c b/lib/libf2fs_io.c
> index 76d283d..47917ab 100644
> --- a/lib/libf2fs_io.c
> +++ b/lib/libf2fs_io.c
> @@ -311,6 +311,7 @@ int f2fs_init_sparse_file(void)
>  #endif
>  }
>  
> +#define MAX_CHUNK_SIZE (1 * 1024 * 1024 * 1024ULL)

Should we introduce an option for fsck.f2fs to get the MAX_CHUNK_SIZE ?

Thanks

>  int f2fs_finalize_device(void)
>  {
>       int i;
> @@ -337,6 +338,12 @@ int f2fs_finalize_device(void)
>                               chunk_start = -1;
>                       } else if (blocks[j] && chunk_start == -1) {
>                               chunk_start = j;
> +                     } else if (blocks[j] && (chunk_start != -1) &&
> +                              (j + 1 - chunk_start >=
> +                                     (MAX_CHUNK_SIZE / F2FS_BLKSIZE))) {
> +                             ret = sparse_merge_blocks(chunk_start,
> +                                                       j + 1 - chunk_start);
> +                             chunk_start = -1;
>                       }
>                       ASSERT(!ret);
>               }
> 




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