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b89ecd47b4
There are new interfaces available but the old one has been retained for us to use. In case of older kernels, we will need to fall back to the previous name of these functions. Signed-off-by: Auke Kok <auke.kok@versity.com>
95 lines
2.4 KiB
Makefile
95 lines
2.4 KiB
Makefile
#
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# We try to detect the specific api incompatibilities with simple tests
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# because distros regularly backport features without changing the
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# version.
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#
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ccflags-y += -include $(src)/kernelcompat.h
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#
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# v3.10-rc6-21-gbb6f619b3a49
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#
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# _readdir changes from fop->readdir() to fop->iterate() and from
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# filldir(dirent) to dir_emit(ctx).
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#
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ifneq (,$(shell grep 'iterate.*dir_context' include/linux/fs.h))
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ccflags-y += -DKC_ITERATE_DIR_CONTEXT
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endif
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#
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# v3.10-rc6-23-g5f99f4e79abc
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#
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# Helpers including dir_emit_dots() are added in the process of
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# switching dcache_readdir() from fop->readdir() to fop->iterate()
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#
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ifneq (,$(shell grep 'dir_emit_dots' include/linux/fs.h))
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ccflags-y += -DKC_DIR_EMIT_DOTS
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endif
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#
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# v3.18-rc2-19-gb5ae6b15bd73
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#
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# Folds d_materialise_unique into d_splice_alias. Note reversal
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# of arguments (Also note Documentation/filesystems/porting.rst)
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#
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ifneq (,$(shell grep 'd_materialise_unique' include/linux/dcache.h))
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ccflags-y += -DKC_D_MATERIALISE_UNIQUE=1
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endif
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#
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# RHEL extended the fop struct so to use it we have to set
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# a flag to indicate that the struct is large enough and
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# contains the pointer.
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#
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ifneq (,$(shell grep 'FMODE_KABI_ITERATE' include/linux/fs.h))
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ccflags-y += -DKC_FMODE_KABI_ITERATE
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endif
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#
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# v4.7-rc2-23-g0d4d717f2583
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#
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# Added user_ns argument to posix_acl_valid
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#
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ifneq (,$(shell grep 'posix_acl_valid.*user_namespace' include/linux/posix_acl.h))
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ccflags-y += -DKC_POSIX_ACL_VALID_USER_NS
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endif
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#
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# v5.3-12296-g6d2052d188d9
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#
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# The RBCOMPUTE function is now passed an extra flag, and should return a bool
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# to indicate whether the propagated callback should stop or not.
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#
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ifneq (,$(shell grep 'static inline bool RBNAME.*_compute_max' include/linux/rbtree_augmented.h))
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ccflags-y += -DKC_RB_TREE_AUGMENTED_COMPUTE_MAX
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endif
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#
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# v3.13-25-g37bc15392a23
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#
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# Renames posix_acl_create to __posix_acl_create and provide some
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# new interfaces for creating ACLs
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#
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ifneq (,$(shell grep '__posix_acl_create' include/linux/posix_acl.h))
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ccflags-y += -DKC___POSIX_ACL_CREATE
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endif
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#
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# v4.8-rc1-29-g31051c85b5e2
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#
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# inode_change_ok() removed - replace with setattr_prepare()
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#
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ifneq (,$(shell grep 'extern int setattr_prepare' include/linux/fs.h))
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ccflags-y += -DKC_SETATTR_PREPARE
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endif
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#
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# v4.15-rc3-4-gae5e165d855d
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#
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# linux/iversion.h needs to manually be included for code that
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# manipulates this field.
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#
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ifneq (,$(shell grep -s 'define _LINUX_IVERSION_H' include/linux/iversion.h))
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ccflags-y += -DKC_NEED_LINUX_IVERSION_H=1
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endif
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