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SubjectRe: [PATCH v3 0/2] squashfs: Add the mount parameter "threads="
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On 02/09/2022 10:48, Xiaoming Ni wrote:
> Currently, Squashfs supports multiple decompressor parallel modes. However, this
> mode can be configured only during kernel building and does not support flexible
> selection during runtime.
>
> In the current patch set, the mount parameter "threads=" is added to allow users
> to select the parallel decompressor mode and configure the number of decompressors
> when mounting a file system.
>
> "threads=<single|multi|percpu|1|2|3|...>"
> The upper limit is num_online_cpus() * 2.
>
>
>
> v3: Based on Philip Lougher's suggestion, make the following updates:
> 1. The default configuration is the same as that before the patch installation.
> 2. Compile the three decompression modes when the new configuration is enabled.
> 3. "threads=1" supports only the SQUASHFS_DECOMP_SINGLE mode.
>

Hi,

This patch-set looks a lot better IMHO. I only have a couple of
relatively minor issues, which will be dealt with as comments on
the patches.

Phillip

> v2: https://lore.kernel.org/lkml/20220816010052.15764-1-nixiaoming@huawei.com/
> fix warning: sparse: incorrect type in initializer (different address spaces)
> Reported-by: kernel test robot <lkp@intel.com>
>
> v1: https://lore.kernel.org/lkml/20220815031100.75243-1-nixiaoming@huawei.com/
>
> Xiaoming Ni (2):
> squashfs: add the mount parameter theads=<single|multi|percpu>
> squashfs: Allows users to configure the number of decompression
> threads.
>
> fs/squashfs/Kconfig | 51 ++++++++++++++++--
> fs/squashfs/decompressor_multi.c | 32 +++++++-----
> fs/squashfs/decompressor_multi_percpu.c | 39 ++++++++------
> fs/squashfs/decompressor_single.c | 23 +++++---
> fs/squashfs/squashfs.h | 43 +++++++++++++--
> fs/squashfs/squashfs_fs_sb.h | 4 +-
> fs/squashfs/super.c | 93 ++++++++++++++++++++++++++++++++-
> 7 files changed, 237 insertions(+), 48 deletions(-)
>

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