[GIT PULL] erofs fixes for 6.4-rc4

[Gao Xiang]

Hi Linus,

Could you consider these three patches for 6.4-rc4?

One patch addresses a null-ptr-deref issue reported by syzbot weeks
ago, which is caused by the new long xattr name prefix feature and
needs to be fixed.

The remaining two patches are minor cleanups to avoid unnecessary
compilation and adjust per-cpu kworker configuration.

Thanks,
Gao Xiang

The following changes since commit f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6:

  Linux 6.4-rc2 (2023-05-14 12:51:40 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git tags/erofs-for-6.4-rc4-fixes

for you to fetch changes up to cf7f2732b4b83026842832e7e4e04bf862108ac2:

  erofs: use HIPRI by default if per-cpu kthreads are enabled (2023-05-23 16:57:08 +0800)

----------------------------------------------------------------
Changes since last update:

 - Fix null-ptr-deref related to long xattr name prefixes;

 - Avoid pcpubuf compilation if CONFIG_EROFS_FS_ZIP is off;

 - Use high priority kthreads by default if per-cpu kthread workers are
   enabled.

----------------------------------------------------------------
Gao Xiang (1):
      erofs: use HIPRI by default if per-cpu kthreads are enabled

Jingbo Xu (1):
      erofs: fix null-ptr-deref caused by erofs_xattr_prefixes_init

Yue Hu (1):
      erofs: avoid pcpubuf.c inclusion if CONFIG_EROFS_FS_ZIP is off

 fs/erofs/Kconfig    |  1 +
 fs/erofs/Makefile   |  4 ++--
 fs/erofs/internal.h | 13 +++++++------
 fs/erofs/xattr.c    |  2 +-
 fs/erofs/zdata.c    |  2 --
 5 files changed, 11 insertions(+), 11 deletions(-)