memalloc_flags_{save,restore} - cleanup of the existing duplication in
our memalloc_*_{save,restore} functions
PF_MEMALLOC_NORECLAIM, PF_MEMALLOC_NOWARN: we've been talking about
getting away from gfp flags for years, but we've been lacking some
PF_MEMALLOC_* equivalents that we need to make that happen - this adds
some of the missing ones.
they're needed for calling alloc_inode() in bcachefs with btree locks
held (so that we can make lookup() properly transactional), since it
doesn't take a gfp flags param and adding it would require changing
methods in every fs.
Kent Overstreet (3):
mm: introduce memalloc_flags_{save,restore}
mm: introduce PF_MEMALLOC_NORECLAIM, PF_MEMALLOC_NOWARN
mempool: kvmalloc pool
include/linux/mempool.h | 13 +++++++++
include/linux/sched.h | 4 +--
include/linux/sched/mm.h | 60 ++++++++++++++++++++++++++--------------
mm/mempool.c | 13 +++++++++
4 files changed, 67 insertions(+), 23 deletions(-)
--
2.43.0
