[PATCHSET,v2,0/1] xfs: fix fsmap cursor handling

Message

Darrick J. Wong Aug. 29, 2023, 11:04 p.m. UTC

Hi all,

This patchset addresses an integer overflow bug that Dave Chinner found
in how fsmap handles figuring out where in the record set we left off
when userspace calls back after the first call filled up all the
designated record space.

v2: add RVB tags

If you're going to start using this code, I strongly recommend pulling
from my git trees, which are linked below.

This has been running on the djcloud for months with no problems.  Enjoy!
Comments and questions are, as always, welcome.

--D

fstests git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=fix-fsmap
---
 tests/xfs/935     |   55 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/935.out |    2 ++
 2 files changed, 57 insertions(+)
 create mode 100755 tests/xfs/935
 create mode 100644 tests/xfs/935.out