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Use more modern bio interfaces

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Move towards modern bio intefaces, while unfortunately carrying along a
bunch of compat functions that let us still work with the old
incompatible interfaces.

Signed-off-by: Zach Brown <zab@versity.com>
Signed-off-by: Auke Kok <auke.kok@versity.com>
This commit is contained in:
Zach Brown
2023-10-09 15:35:40 -04:00
committed by Auke Kok
parent 4275f6e6e5
commit 28f03d3558
3 changed files with 91 additions and 26 deletions
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kmod/src/Makefile.kernelcompat
+20
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@@ -110,3 +110,23 @@ endif
ifneq (,$(shell grep 'memalloc_nofs_save' include/linux/sched/mm.h))
ccflags-y += -DKC_MEMALLOC_NOFS_SAVE
endif
#
# v4.7-12414-g1eff9d322a44
#
# Renamed bi_rw to bi_opf to force old code to catch up. We use it as a
# single switch between old and new bio structures.
#
ifneq (,$(shell grep 'bi_opf' include/linux/blk_types.h))
ccflags-y += -DKC_BIO_BI_OPF
endif
#
# v4.12-rc2-201-g4e4cbee93d56
#
# Moves to bi_status BLK_STS_ API instead of having a mix of error
# end_io args or bi_error.
#
ifneq (,$(shell grep 'bi_status' include/linux/blk_types.h))
ccflags-y += -DKC_BIO_BI_STATUS
endif