[PATCH] fs: ext4: Fix alignment of cache buffers
Tom Rini
trini at konsulko.com
Wed Mar 25 21:31:08 CET 2020
On Wed, Mar 25, 2020 at 09:27:51PM +0100, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka at siemens.com>
>
> We need to align the cache buffer to ARCH_DMA_MINALIGN in order to avoid
> access errors like
>
> CACHE: Misaligned operation at range [be0231e0, be0235e0]
>
> seen on the MCIMX7SABRE.
>
> Fixes: d5aee659f217 ("fs: ext4: cache extent data")
> Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>
> ---
> fs/ext4/ext4fs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
> index 1c616a26a2..966b427a97 100644
> --- a/fs/ext4/ext4fs.c
> +++ b/fs/ext4/ext4fs.c
> @@ -288,7 +288,7 @@ int ext_cache_read(struct ext_block_cache *cache, lbaint_t block, int size)
> if (cache->buf && cache->block == block && cache->size == size)
> return 1;
> ext_cache_fini(cache);
> - cache->buf = malloc(size);
> + cache->buf = memalign(ARCH_DMA_MINALIGN, size);
> if (!cache->buf)
> return 0;
> if (!ext4fs_devread(block, 0, size, cache->buf)) {
Thanks for digging in to this.
Reviewed-by: Tom Rini <trini at konsulko.com>
--
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 659 bytes
Desc: not available
URL: <https://lists.denx.de/pipermail/u-boot/attachments/20200325/6892aa10/attachment.sig>
More information about the U-Boot
mailing list