lkml.org 
[lkml]   [2022]   [Sep]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Subject[PATCH v5 0/2] squashfs: Add the mount parameter "threads="
    Date
    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.

    v5: fix a low-level mistake in patching:
    fs/squashfs/super.c:492:7: warning: "CONFIG_SQUASHFS_DECOMP_MULTI" is
    not defined, evaluates to 0 [-Wundef]

    v4: https://lore.kernel.org/lkml/20220916083604.33408-1-nixiaoming@huawei.com/
    Based on Philip Lougher's suggestion, make the following updates:
    1. Use static modifiers to avoid changing symbol names.
    2. Fixed some formatting issues

    v3: https://lore.kernel.org/lkml/20220902094855.22666-1-nixiaoming@huawei.com/
    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.

    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/block.c | 2 +-
    fs/squashfs/decompressor.c | 2 +-
    fs/squashfs/decompressor_multi.c | 20 ++++---
    fs/squashfs/decompressor_multi_percpu.c | 23 +++++---
    fs/squashfs/decompressor_single.c | 15 ++++--
    fs/squashfs/squashfs.h | 23 ++++++--
    fs/squashfs/squashfs_fs_sb.h | 4 +-
    fs/squashfs/super.c | 93 +++++++++++++++++++++++++++++++--
    9 files changed, 199 insertions(+), 34 deletions(-)

    --
    2.12.3

    \
     
     \ /
      Last update: 2022-09-30 11:15    [W:2.195 / U:0.328 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site