erofs fixes for 7.2-rc6

Hi Linus,

Could you consider these fixes for 7.2-rc6?

One patch fixes a new regression in page cache sharing introduced in 7.2-rc3, which can cause a NULL pointer dereference; another patch limits LZMA stream memory usage on systems with many CPUs.

Thanks,
Gao Xiang

The following changes since commit 1590cf0329716306e948a8fc29f1d3ee87d3989f:

Linux 7.2-rc4 (2026-07-19 13:54:41 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git tags/erofs-for-7.2-rc6-fixes

for you to fetch changes up to c9b47e6b23114e939b17f818471c7a46e59006e7:

erofs: cap LZMA stream pool size (2026-07-27 12:31:11 +0800)

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

- Keep a valid f_path for page cache sharing to fix a recent mincore() NULL pointer dereference

- Limit LZMA stream pool size when too many processors are available

- Sync up with Hongbo Li's latest email address

----------------------------------------------------------------
Gao Xiang (1):
erofs: ensure valid f_path for page cache sharing

Hongbo Li (1):
MAINTAINERS: update Hongbo Li's email address

Michael Bommarito (1):
erofs: cap LZMA stream pool size

 MAINTAINERS                  |  2 +-
 fs/erofs/Kconfig             | 15 ++++++++++++
 fs/erofs/decompressor_lzma.c |  3 ++-
 fs/erofs/internal.h          |  4 +--
 fs/erofs/ishare.c            | 58 +++++++++++++++++++++-----------------------
 5 files changed, 48 insertions(+), 34 deletions(-)