chrisrd e9a7729008 Fix free memory calculation on v3.14+ ... 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: 2017-08-24 2209e409 Linux 4.8+ compatibility fix for vm stats 2017-09-16 787acae0 Linux 3.14 compat: IO acct, global_page_state, etc 2017-09-19 661907e6 Linux 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		2018-02-23 08:50:06 -08:00
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blkdev_compat.h	Linux 3.14 compat: IO acct, global_page_state, etc	2017-09-16 11:00:19 -07:00
dcache_compat.h	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
kmap_compat.h	Add compatibility layer for {kmap,kunmap}_atomic	2015-08-24 10:13:25 -07:00
Makefile.am	Fix free memory calculation on v3.14+	2018-02-23 08:50:06 -08:00
mod_compat.h	Linux compat: Grsecurity kernel	2016-08-22 10:05:45 -07:00
page_compat.h	Fix free memory calculation on v3.14+	2018-02-23 08:50:06 -08:00
simd_aarch64.h	Add parity generation/rebuild using 128-bits NEON for Aarch64	2016-10-03 09:44:00 -07:00
simd_x86.h	Use cstyle -cpP in make cstyle check	2016-12-12 10:46:26 -08:00
utsname_compat.h	Update utsname support	2014-10-17 14:58:57 -07:00
vfs_compat.h	Linux 4.16 compat: use correct *_dec_and_test()	2018-02-22 09:02:06 -08:00
xattr_compat.h	Linux 4.7 compat: handler->set() takes both dentry and inode	2016-06-01 18:10:06 -07:00