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338523dd6e
Provide infrastructure to auto-configure to enum and API changes in the global page stats used for our free memory calculations. arc_free_memory has been broken since an API change in Linux v3.14: 2016-07-28 v4.8 599d0c95 mm, vmscan: move LRU lists to node 2016-07-28 v4.8 75ef7184 mm, vmstat: add infrastructure for per-node vmstats These commits moved some of global_page_state() into global_node_page_state(). The API change was particularly egregious as, instead of breaking the old code, it silently did the wrong thing and we continued using global_page_state() where we should have been using global_node_page_state(), thus indexing into the wrong array via NR_SLAB_RECLAIMABLE et al. There have been further API changes along the way: 2017-07-06 v4.13 385386cf mm: vmstat: move slab statistics from zone to node counters 2017-09-06 v4.14 c41f012a mm: rename global_page_state to global_zone_page_state ...and various (incomplete, as it turns out) attempts to accomodate these changes in ZoL: 2017-08-242209e409Linux 4.8+ compatibility fix for vm stats 2017-09-16787acae0Linux 3.14 compat: IO acct, global_page_state, etc 2017-09-19661907e6Linux 4.14 compat: IO acct, global_page_state, etc The config infrastructure provided here resolves these issues going back to the original API change in v3.14 and is robust against further Linux changes in this area. Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Chris Dunlop <chris@onthe.net.au> Closes #7170
28 lines
754 B
Makefile
28 lines
754 B
Makefile
COMMON_H =
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KERNEL_H = \
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$(top_srcdir)/include/linux/dcache_compat.h \
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$(top_srcdir)/include/linux/xattr_compat.h \
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$(top_srcdir)/include/linux/vfs_compat.h \
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$(top_srcdir)/include/linux/blkdev_compat.h \
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$(top_srcdir)/include/linux/utsname_compat.h \
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$(top_srcdir)/include/linux/kmap_compat.h \
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$(top_srcdir)/include/linux/simd_x86.h \
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$(top_srcdir)/include/linux/simd_aarch64.h \
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$(top_srcdir)/include/linux/mod_compat.h \
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$(top_srcdir)/include/linux/page_compat.h
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USER_H =
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EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
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if CONFIG_USER
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libzfsdir = $(includedir)/libzfs/linux
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libzfs_HEADERS = $(COMMON_H) $(USER_H)
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endif
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if CONFIG_KERNEL
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kerneldir = @prefix@/src/zfs-$(VERSION)/include/linux
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kernel_HEADERS = $(COMMON_H) $(KERNEL_H)
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endif
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