Whamcloud - gitweb
LU-12400 llite: Use the new vm_fault_t type
[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4
index 227fd38..635563f 100644 (file)
@@ -123,6 +123,22 @@ AS_IF([test "x$enable_checksum" != xno],
 ]) # LC_CONFIG_CHECKSUM
 
 #
+# LC_CONFIG_FLOCK
+#
+# enable distributed flock by default
+#
+AC_DEFUN([LC_CONFIG_FLOCK], [
+AC_MSG_CHECKING([whether to enable flock by default])
+AC_ARG_ENABLE([flock],
+       AC_HELP_STRING([--disable-flock],
+               [disable flock by default]),
+       [], [enable_flock="yes"])
+AC_MSG_RESULT([$enable_flock])
+AS_IF([test "x$enable_flock" != xno],
+       [AC_DEFINE(ENABLE_FLOCK, 1, [enable flock by default])])
+]) # LC_CONFIG_FLOCK
+
+#
 # LC_CONFIG_HEALTH_CHECK_WRITE
 #
 # Turn off the actual write to the disk
@@ -340,6 +356,31 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 AC_MSG_RESULT([$enable_ssk])
 ]) # LC_OPENSSL_SSK
 
+# LC_OPENSSL_GETSEPOL
+#
+# OpenSSL is needed for l_getsepol
+AC_DEFUN([LC_OPENSSL_GETSEPOL], [
+AC_MSG_CHECKING([whether openssl-devel is present])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+       #include <openssl/evp.h>
+
+       int main(void) {
+               EVP_MD_CTX *mdctx = EVP_MD_CTX_create();
+       }
+])],[
+       AC_DEFINE(HAVE_OPENSSL_GETSEPOL, 1, [openssl-devel is present])
+       enable_getsepol="yes"
+
+],[
+       enable_getsepol="no"
+       AC_MSG_WARN([
+
+No openssk-devel headers found, unable to build l_getsepol and SELinux status checking
+])
+])
+AC_MSG_RESULT([$enable_getsepol])
+]) # LC_OPENSSL_GETSEPOL
+
 # LC_INODE_PERMISION_2ARGS
 #
 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
@@ -538,34 +579,6 @@ super_ops_evict_inode, [
 ]) # LC_SBOPS_EVICT_INODE
 
 #
-# LC_FILE_FSYNC
-#
-# 2.6.35 file_operations.fsync taken 2 arguments.
-# 3.0.0 file_operations.fsync takes 4 arguments.
-#
-AC_DEFUN([LC_FILE_FSYNC], [
-LB_CHECK_COMPILE([if 'file_operations.fsync' takes 4 arguments],
-file_ops_fsync_4args, [
-       #include <linux/fs.h>
-],[
-       ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
-],[
-       AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
-               [file_operations.fsync takes 4 arguments])
-],[
-       LB_CHECK_COMPILE([if 'file_operations.fsync' takes 2 arguments],
-       file_ops_fsync_2args, [
-               #include <linux/fs.h>
-       ],[
-               ((struct file_operations *)0)->fsync(NULL, 0);
-       ],[
-               AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
-                       [file_operations.fsync takes 2 arguments])
-       ])
-])
-]) # LC_FILE_FSYNC
-
-#
 # LC_KERNEL_LOCKED
 #
 # 2.6.37 remove kernel_locked
@@ -597,6 +610,23 @@ fs_struct_seqcount, [
 ])
 ]) # LC_FS_STRUCT_SEQCOUNT
 
+# LC_DENTRY_PATH_RAW
+#
+# Kernel version 2.6.37 commit ec2447c278ee973d35f38e53ca16ba7f965ae33d
+# dentry_path_raw is exported
+#
+AC_DEFUN([LC_DENTRY_PATH_RAW], [
+LB_CHECK_COMPILE([if 'dentry_path_raw' exist],
+dentry_path_raw, [
+       #include <linux/dcache.h>
+],[
+       dentry_path_raw(NULL, NULL, 0);
+],[
+       AC_DEFINE(HAVE_DENTRY_PATH_RAW, 1,
+               ['dentry_path_raw' is available])
+])
+]) # LC_DENTRY_PATH_RAW
+
 #
 # LC_D_COMPARE_7ARGS
 #
@@ -716,23 +746,6 @@ blk_plug, [
 ]) # LC_HAVE_BLK_PLUG
 
 #
-# LC_IOP_TRUNCATE
-#
-# truncate callback removed since 2.6.39
-#
-AC_DEFUN([LC_IOP_TRUNCATE], [
-LB_CHECK_COMPILE([if 'inode_operations' has '.truncate' member function],
-inode_ops_truncate, [
-       #include <linux/fs.h>
-],[
-       ((struct inode_operations *)0)->truncate(NULL);
-],[
-       AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
-               [inode_operations has .truncate member function])
-])
-]) # LC_IOP_TRUNCATE
-
-#
 # LC_HAVE_FSTYPE_MOUNT
 #
 # 2.6.39 replace get_sb with mount in struct file_system_type
@@ -977,6 +990,23 @@ security_inode_init_security_callback, [
 ]) # LC_HAVE_SECURITY_IINITSEC
 
 #
+# 2.6.39 vfs_create takes a 'struct nameidata' parameter
+#
+AC_DEFUN([LC_VFS_CREATE_USE_NAMEIDATA], [
+LB_CHECK_COMPILE([if vfs_create takes a struct nameidata parameter],
+vfs_create, [
+       #include <linux/namei.h>
+       #include <linux/fs.h>
+],[
+       struct nameidata *nd;
+       vfs_create(NULL, NULL, 0, nd);
+],[
+       AC_DEFINE(HAVE_VFS_CREATE_USE_NAMEIDATA, 1,
+               [vfs_create use nameidata as parameter])
+])
+]) # LC_VFS_CREATE_USE_NAMEIDATA
+
+#
 # LC_HAVE_MIGRATE_HEADER
 #
 # 3.3 introduces migrate_mode.h and migratepage has 4 args
@@ -1406,6 +1436,23 @@ is_sxid, [
 ]) # LC_HAVE_IS_SXID
 
 #
+# LC_HAVE_VFS_GETATTR_2ARGS
+#
+AC_DEFUN([LC_HAVE_VFS_GETATTR_2ARGS], [
+LB_CHECK_COMPILE([if vfs_getattr takes 2 args],
+vfs_getattr, [
+       #include <linux/fs.h>
+],[
+       struct path path;
+
+       vfs_getattr(&path, NULL);
+],[
+       AC_DEFINE(HAVE_VFS_GETATTR_2ARGS, 1,
+               [vfs_getattr takes 2 args])
+])
+]) # LC_HAVE_VFS_GETATTR_2ARGS
+
+#
 # LC_HAVE_REMOVE_PROC_SUBTREE
 #
 # 3.10 introduced remove_proc_subtree
@@ -1473,6 +1520,21 @@ security_dentry_init_security, [
 ]) # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
 
 #
+# 3.10 exports security_inode_listsecurity
+#
+AC_DEFUN([LC_HAVE_SECURITY_INODE_LISTSECURITY], [
+LB_CHECK_COMPILE([if security_inode_listsecurity() is available/exported],
+security_inode_listsecurity, [
+       #include <linux/security.h>
+],[
+       security_inode_listsecurity(NULL, NULL, 0);
+],[
+       AC_DEFINE(HAVE_SECURITY_INODE_LISTSECURITY, 1,
+                 [security_inode_listsecurity() is available/exported])
+])
+]) # LC_HAVE_SECURITY_INODE_LISTSECURITY
+
+#
 # LC_INVALIDATE_RANGE
 #
 # 3.11 invalidatepage requires the length of the range to invalidate
@@ -1730,6 +1792,23 @@ vfs_unlink_3args, [
 ])
 ]) # LC_VFS_UNLINK_3ARGS
 
+# LC_HAVE_D_IS_POSITIVE
+#
+# Kernel version 3.13 b18825a7c8e37a7cf6abb97a12a6ad71af160de7
+# d_is_positive is added
+#
+AC_DEFUN([LC_HAVE_D_IS_POSITIVE], [
+LB_CHECK_COMPILE([if 'd_is_positive' exist],
+d_is_positive, [
+       #include <linux/dcache.h>
+],[
+       d_is_positive(NULL);
+],[
+       AC_DEFINE(HAVE_D_IS_POSITIVE, 1,
+               ['d_is_positive' is available])
+])
+]) # LC_HAVE_D_IS_POSITIVE
+
 #
 # LC_HAVE_BVEC_ITER
 #
@@ -1770,81 +1849,6 @@ inode_ops_set_acl, [
 ]) # LC_IOP_SET_ACL
 
 #
-# LC_HAVE_BI_CNT
-#
-# 4.4 redefined bi_cnt as __bi_cnt
-#
-AC_DEFUN([LC_HAVE_BI_CNT], [
-LB_CHECK_COMPILE([if Linux kernel has bi_cnt in struct bio],
-have_bi_cnt, [
-       #include <asm/atomic.h>
-       #include <linux/bio.h>
-],[
-       struct bio bio = { };
-       int cnt;
-       cnt = atomic_read(&bio.bi_cnt);
-], [
-       AC_DEFINE(HAVE_BI_CNT, 1,
-               [struct bio has bi_cnt])
-])
-]) # LC_HAVE_BI_CNT
-
-#
-# LC_HAVE_BI_RW
-#
-# 4.4 redefined bi_rw as bi_opf
-#
-AC_DEFUN([LC_HAVE_BI_RW], [
-LB_CHECK_COMPILE([if Linux kernel has bi_rw in struct bio],
-have_bi_rw, [
-       #include <linux/bio.h>
-],[
-       struct bio bio;
-
-       bio.bi_rw = 0;
-], [
-       AC_DEFINE(HAVE_BI_RW, 1,
-               [struct bio has bi_rw])
-])
-]) # LC_HAVE_BI_RW
-
-#
-# LC_HAVE_SUBMIT_BIO_2ARGS
-#
-# 4.4 removed an argument from submit_bio
-#
-AC_DEFUN([LC_HAVE_SUBMIT_BIO_2ARGS], [
-LB_CHECK_COMPILE([if submit_bio takes two arguments],
-have_submit_bio_2args, [
-       #include <linux/bio.h>
-],[
-       struct bio bio;
-       submit_bio(READ, &bio);
-], [
-       AC_DEFINE(HAVE_SUBMIT_BIO_2ARGS, 1,
-               [submit_bio takes two arguments])
-])
-]) # LC_HAVE_SUBMIT_BIO_2_ARGS
-
-#
-# LC_HAVE_CLEAN_BDEV_ALIASES
-#
-# 4.4 unmap_underlying_metadata was replaced by clean_bdev_aliases
-#
-AC_DEFUN([LC_HAVE_CLEAN_BDEV_ALIASES], [
-LB_CHECK_COMPILE([if kernel has clean_bdev_aliases],
-have_clean_bdev_aliases, [
-       #include <linux/buffer_head.h>
-],[
-       struct block_device bdev;
-       clean_bdev_aliases(&bdev,1,1);
-], [
-       AC_DEFINE(HAVE_CLEAN_BDEV_ALIASES, 1,
-               [kernel has clean_bdev_aliases])
-])
-]) # LC_HAVE_CLEAN_BDEV_ALIASES
-
-#
 # LC_HAVE_TRUNCATE_IPAGE_FINAL
 #
 # 3.14 bring truncate_inode_pages_final for evict_inode
@@ -2203,6 +2207,27 @@ LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
 ]) # LC_HAVE_SYNC_READ_WRITE
 
 #
+# LC_HAVE___BI_CNT
+#
+# 4.1 redefined bi_cnt as __bi_cnt in commit dac56212e8127dbc0
+#
+AC_DEFUN([LC_HAVE___BI_CNT], [
+LB_CHECK_COMPILE([if Linux kernel has __bi_cnt in struct bio],
+have___bi_cnt, [
+       #include <asm/atomic.h>
+       #include <linux/bio.h>
+       #include <linux/blk_types.h>
+],[
+       struct bio bio = { };
+       int cnt;
+       cnt = atomic_read(&bio.__bi_cnt);
+], [
+       AC_DEFINE(HAVE___BI_CNT, 1,
+               [struct bio has __bi_cnt])
+])
+]) # LC_HAVE___BI_CNT
+
+#
 # LC_NEW_CANCEL_DIRTY_PAGE
 #
 # 4.2 kernel has new cancel_dirty_page
@@ -2382,6 +2407,62 @@ bio_integrity_prep_fn, [
 ]) # LC_BIO_INTEGRITY_PREP_FN
 
 #
+# LC_HAVE_BI_OPF
+#
+# 4.4/4.8 redefined bi_rw as bi_opf (SLES12/kernel commit 4382e33ad37486)
+#
+AC_DEFUN([LC_HAVE_BI_OPF], [
+LB_CHECK_COMPILE([if Linux kernel has bi_opf in struct bio],
+have_bi_opf, [
+       #include <linux/bio.h>
+],[
+       struct bio bio;
+
+       bio.bi_opf = 0;
+], [
+       AC_DEFINE(HAVE_BI_OPF, 1,
+               [struct bio has bi_opf])
+])
+]) # LC_HAVE_BI_OPF
+
+#
+# LC_HAVE_SUBMIT_BIO_2ARGS
+#
+# 4.4 removed an argument from submit_bio
+#
+AC_DEFUN([LC_HAVE_SUBMIT_BIO_2ARGS], [
+LB_CHECK_COMPILE([if submit_bio takes two arguments],
+have_submit_bio_2args, [
+       #include <linux/bio.h>
+],[
+       struct bio bio;
+       submit_bio(READ, &bio);
+], [
+       AC_DEFINE(HAVE_SUBMIT_BIO_2ARGS, 1,
+               [submit_bio takes two arguments])
+])
+]) # LC_HAVE_SUBMIT_BIO_2_ARGS
+
+#
+# LC_HAVE_CLEAN_BDEV_ALIASES
+#
+# 4.4/4.9 unmap_underlying_metadata was replaced by clean_bdev_aliases
+# (SLES12/kernel commit 29f3ad7d8380364c)
+#
+AC_DEFUN([LC_HAVE_CLEAN_BDEV_ALIASES], [
+LB_CHECK_COMPILE([if kernel has clean_bdev_aliases],
+have_clean_bdev_aliases, [
+       #include <linux/buffer_head.h>
+],[
+       struct block_device bdev;
+       clean_bdev_aliases(&bdev,1,1);
+], [
+       AC_DEFINE(HAVE_CLEAN_BDEV_ALIASES, 1,
+               [kernel has clean_bdev_aliases])
+])
+]) # LC_HAVE_CLEAN_BDEV_ALIASES
+
+#
 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
 #
 # 4.4 kernel have moved locks API users to
@@ -2532,6 +2613,28 @@ EXTRA_KCFLAGS="$tmp_flags"
 ]) # LC_HAVE_XATTR_HANDLER_INODE_PARAM
 
 #
+# LC_D_IN_LOOKUP
+#
+# Kernel version 4.6 commit 85c7f81041d57cfe9dc97f4680d5586b54534a39
+# introduced parallel lookups in the VFS layer. The inline function
+# d_in_lookup was added to notify when the same item was being queried
+# at the same time.
+#
+AC_DEFUN([LC_D_IN_LOOKUP], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if 'd_in_lookup' is defined],
+d_in_lookup, [
+       #include <linux/dcache.h>
+],[
+       d_in_lookup(NULL);
+],[
+       AC_DEFINE(HAVE_D_IN_LOOKUP, 1, [d_in_lookup is defined])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LC_D_IN_LOOKUP
+
+#
 # LC_DIRECTIO_2ARGS
 #
 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
@@ -2557,8 +2660,8 @@ direct_io_2args, [
 #
 # LC_GENERIC_WRITE_SYNC_2ARGS
 #
-# Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
-# direct-io: eliminate the offset argument to ->direct_IO
+# Kernel version 4.7 commit dde0c2e79848298cc25621ad080d47f94dbd7cce
+# fs: add IOCB_SYNC and IOCB_DSYNC
 #
 AC_DEFUN([LC_GENERIC_WRITE_SYNC_2ARGS], [
 LB_CHECK_COMPILE([if 'generic_write_sync()' taken 2 arguments],
@@ -2909,6 +3012,23 @@ current_time, [
 ]) # LIBCFS_CURRENT_TIME
 
 #
+# Kernel version 4.12-rc3 85787090a21eb749d8b347eaf9ff1a455637473c
+# changed struct super_block s_uuid into a proper uuid_t
+#
+AC_DEFUN([LC_SUPER_BLOCK_S_UUID], [
+LB_CHECK_COMPILE([if 'struct super_block' s_uuid is uuid_t],
+super_block_s_uuid, [
+       #include <linux/fs.h>
+],[
+       struct super_block sb;
+
+       uuid_parse(NULL, &sb.s_uuid);
+],[
+       AC_DEFINE(HAVE_S_UUID_AS_UUID_T, 1, ['s_uuid' is an uuid_t])
+])
+]) # LC_SUPER_BLOCK_S_UUID
+
+#
 # LC_SUPER_SETUP_BDI_NAME
 #
 # Kernel version 4.12 commit 9594caf216dc0fe3e318b34af0127276db661241
@@ -2944,6 +3064,28 @@ bi_status, [
 ]) # LC_BI_STATUS
 
 #
+# LC_UAPI_LINUX_MOUNT_H
+#
+# kernel 4.20 commit e262e32d6bde0f77fb0c95d977482fc872c51996
+# vfs: Suppress MS_* flag defs within the kernel ...
+#
+AC_DEFUN([LC_UAPI_LINUX_MOUNT_H], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if MS_RDONLY was moved to uapi/linux/mount.h],
+uapi_linux_mount, [
+       #include <uapi/linux/mount.h>
+],[
+       int x = MS_RDONLY;
+       (void)x;
+],[
+       AC_DEFINE(HAVE_UAPI_LINUX_MOUNT_H, 1,
+               [if MS_RDONLY was moved to uapi/linux/mount.h])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LC_UAPI_LINUX_MOUNT_H
+
+#
 # LC_BIO_INTEGRITY_ENABLED
 #
 # 4.13 removed bio_integrity_enabled
@@ -2995,6 +3137,79 @@ bi_bdev, [
 ]) # LC_BI_BDEV
 
 #
+# LC_I_PAGES
+#
+# kernel 4.17 commit b93b016313b3ba8003c3b8bb71f569af91f19fc7
+#
+AC_DEFUN([LC_I_PAGES], [
+LB_CHECK_COMPILE([if struct address_space has i_pages],
+i_pages, [
+       #include <linux/fs.h>
+],[
+       struct address_space mapping = {};
+       void *i_pages;
+
+       i_pages = &mapping.i_pages;
+],[
+       AC_DEFINE(HAVE_I_PAGES, 1,
+               [struct address_space has i_pages])
+])
+]) # LC_I_PAGES
+
+#
+# LC_VM_FAULT_T
+#
+# kernel 4.17 commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
+# mm: create the new vm_fault_t type
+#
+AC_DEFUN([LC_VM_FAULT_T], [
+LB_CHECK_COMPILE([if vm_fault_t type exists],
+vm_fault_t, [
+       #include <linux/mm_types.h>
+],[
+       vm_fault_t x = VM_FAULT_SIGBUS;
+       (void)x
+],[
+       AC_DEFINE(HAVE_VM_FAULT_T, 1,
+               [if vm_fault_t type exists])
+])
+]) # LC_VM_FAULT_T
+
+#
+# LC_INODE_TIMESPEC64
+#
+# kernel 4.17-rc7 commit 8efd6894ff089adeeac7cb9f32125b85d963d1bc
+# fs: add timespec64_truncate()
+# kernel 4.18 commit 95582b00838837fc07e042979320caf917ce3fe6
+# inode timestamps switched to timespec64
+# kernel 4.19-rc2 commit 976516404ff3fab2a8caa8bd6f5efc1437fed0b8
+# y2038: remove unused time interfaces
+# ...
+#  timespec_trunc
+# ...
+# When inode times are timespec64 stop using the deprecated
+# time interfaces.
+#
+AC_DEFUN([LC_INODE_TIMESPEC64], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if inode timestamps are struct timespec64],
+inode_timespec64, [
+       #include <linux/fs.h>
+],[
+       struct inode inode = {};
+       struct timespec64 ts = {};
+
+       inode.i_atime = timespec64_trunc(ts, 1);
+       (void)inode;
+],[
+       AC_DEFINE(HAVE_INODE_TIMESPEC64, 1,
+               [inode times are using timespec64])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LC_INODE_TIMESPEC64
+
+#
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
@@ -3005,12 +3220,14 @@ AC_DEFUN([LC_PROG_LINUX], [
 
        LC_CONFIG_PINGER
        LC_CONFIG_CHECKSUM
+       LC_CONFIG_FLOCK
        LC_CONFIG_HEALTH_CHECK_WRITE
        LC_CONFIG_LRU_RESIZE
 
        LC_GLIBC_SUPPORT_FHANDLES
        LC_CONFIG_GSS
        LC_OPENSSL_SSK
+       LC_OPENSSL_GETSEPOL
 
        # 2.6.32
        LC_BLK_QUEUE_MAX_SEGMENTS
@@ -3024,7 +3241,6 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
 
        # 2.6.35, 3.0.0
-       LC_FILE_FSYNC
        LC_EXPORT_SIMPLE_SETATTR
        LC_EXPORT_TRUNCATE_COMPLETE_PAGE
 
@@ -3035,6 +3251,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        # 2.6.37
        LC_KERNEL_LOCKED
        LC_FS_STRUCT_SEQCOUNT
+       LC_DENTRY_PATH_RAW
 
        # 2.6.38
        LC_BLKDEV_GET_BY_DEV
@@ -3048,9 +3265,9 @@ AC_DEFUN([LC_PROG_LINUX], [
        # 2.6.39
        LC_HAVE_FHANDLE_SYSCALLS
        LC_HAVE_FSTYPE_MOUNT
-       LC_IOP_TRUNCATE
        LC_HAVE_INODE_OWNER_OR_CAPABLE
        LC_HAVE_SECURITY_IINITSEC
+       LC_VFS_CREATE_USE_NAMEIDATA
 
        # 3.0
        LC_DIRTY_INODE_WITH_FLAG
@@ -3102,12 +3319,14 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_HAVE_HLIST_FOR_EACH_3ARG
        LC_HAVE_BIO_END_SECTOR
        LC_HAVE_IS_SXID
+       LC_HAVE_VFS_GETATTR_2ARGS
 
        # 3.10
        LC_HAVE_REMOVE_PROC_SUBTREE
        LC_HAVE_PROC_REMOVE
        LC_HAVE_PROJECT_QUOTA
        LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
+       LC_HAVE_SECURITY_INODE_LISTSECURITY
 
        # 3.11
        LC_INVALIDATE_RANGE
@@ -3127,6 +3346,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        # 3.13
        LC_VFS_RENAME_5ARGS
        LC_VFS_UNLINK_3ARGS
+       LC_HAVE_D_IS_POSITIVE
 
        # 3.14
        LC_HAVE_BVEC_ITER
@@ -3165,6 +3385,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        # 4.1.0
        LC_IOV_ITER_RW
        LC_HAVE_SYNC_READ_WRITE
+       LC_HAVE___BI_CNT
 
        # 4.2
        LC_NEW_CANCEL_DIRTY_PAGE
@@ -3181,8 +3402,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_HAVE_LOCKS_LOCK_FILE_WAIT
        LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
        LC_HAVE_XATTR_HANDLER_NAME
-       LC_HAVE_BI_CNT
-       LC_HAVE_BI_RW
+       LC_HAVE_BI_OPF
        LC_HAVE_SUBMIT_BIO_2ARGS
        LC_HAVE_CLEAN_BDEV_ALIASES
 
@@ -3198,6 +3418,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_HAVE_XATTR_HANDLER_INODE_PARAM
 
        # 4.7
+       LC_D_IN_LOOKUP
        LC_DIRECTIO_2ARGS
        LC_GENERIC_WRITE_SYNC_2ARGS
        LC_FOPS_ITERATE_SHARED
@@ -3226,6 +3447,7 @@ AC_DEFUN([LC_PROG_LINUX], [
 
        # 4.12
        LC_CURRENT_TIME
+       LC_SUPER_BLOCK_S_UUID
        LC_SUPER_SETUP_BDI_NAME
        LC_BI_STATUS
 
@@ -3236,6 +3458,16 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_PAGEVEC_INIT_ONE_PARAM
        LC_BI_BDEV
 
+       # 4.17
+       LC_VM_FAULT_T
+       LC_I_PAGES
+
+       # 4.18
+       LC_INODE_TIMESPEC64
+
+       # 5.0
+       LC_UAPI_LINUX_MOUNT_H
+
        # kernel patch to extend integrity interface
        LC_BIO_INTEGRITY_PREP_FN
 
@@ -3272,17 +3504,21 @@ AC_ARG_ENABLE([mpitests],
                case $enableval in
                yes)
                        MPICC_WRAPPER="mpicc"
+                       MPI_BIN=$(eval which $MPICC_WRAPPER | xargs dirname)
                        ;;
                no)
                        enable_mpitests="no"
+                       MPI_BIN=""
                        ;;
                *)
                        MPICC_WRAPPER=$enableval
+                       MPI_BIN=$(eval echo $MPICC_WRAPPER | xargs dirname)
                        ;;
                esac
        ], [
                enable_mpitests="yes"
                MPICC_WRAPPER="mpicc"
+               MPI_BIN=$(eval which $MPICC_WRAPPER | xargs dirname)
        ])
 
        if test "x$enable_mpitests" != "xno"; then
@@ -3301,6 +3537,7 @@ AC_ARG_ENABLE([mpitests],
                enable_mpitests=$lb_cv_mpi_tests
                CC=$oldcc
        fi
+       AC_SUBST(MPI_BIN)
        AC_SUBST(MPICC_WRAPPER)
 ]) # LB_CONFIG_MPITESTS
 
@@ -3336,23 +3573,6 @@ AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
 ]) # LC_QUOTA
 
 #
-# LC_CONFIG_NODEMAP_PROC_DEBUG
-#
-# enable nodemap proc file debugging
-#
-AC_DEFUN([LC_NODEMAP_PROC_DEBUG], [
-AC_MSG_CHECKING([whether to enable nodemap proc debug])
-AC_ARG_ENABLE([nodemap_proc_debug],
-       AC_HELP_STRING([--enable-nodemap-proc-debug],
-               [enable nodemap proc debug]),
-       [], [enable_nodemap_proc_debug="no"])
-AC_MSG_RESULT([$enable_nodemap_proc_debug])
-AS_IF([test "x$enable_nodemap_proc_debug" != xno],
-       [AC_DEFINE(NODEMAP_PROC_DEBUG, 1,
-               [enable nodemap proc debug support])])
-]) # LC_NODEMAP_PROC_DEBUG
-
-#
 # LC_OSD_ADDON
 #
 # configure support for optional OSD implementation
@@ -3425,12 +3645,14 @@ AC_CHECK_HEADERS([blkid/blkid.h])
 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
 
 # lustre/utils/lfs.c
-AC_CHECK_LIB([z], [crc32], [
-            AC_CHECK_HEADER([zlib.h], [], [
-                            AC_MSG_ERROR([zlib.h not found.])])
-            ], [
-            AC_MSG_ERROR([
-zlib library not found. Please install zlib development package.])
+AS_IF([test "$enable_dist" = "no"], [
+               AC_CHECK_LIB([z], [crc32], [
+                                AC_CHECK_HEADER([zlib.h], [], [
+                                                AC_MSG_ERROR([zlib.h not found.])])
+                                ], [
+                                AC_MSG_ERROR([
+               zlib library not found. Please install zlib development package.])
+               ])
 ])
 
 SELINUX=""
@@ -3538,6 +3760,8 @@ AM_CONDITIONAL(GSS_SSK, test x$enable_ssk = xyes)
 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
 AM_CONDITIONAL(HAVE_SYSTEMD, test "x$with_systemdsystemunitdir" != "xno")
 AM_CONDITIONAL(XATTR_HANDLER, test "x$lb_cv_compile_xattr_handler_flags" = xyes)
+AM_CONDITIONAL(SELINUX, test "$SELINUX" = "-lselinux")
+AM_CONDITIONAL(GETSEPOL, test x$enable_getsepol = xyes)
 ]) # LC_CONDITIONALS
 
 #
@@ -3557,26 +3781,18 @@ lustre/doc/Makefile
 lustre/include/Makefile
 lustre/include/lustre/Makefile
 lustre/include/uapi/linux/lustre/Makefile
+lustre/kernel_patches/targets/4.18-rhel8.target
 lustre/kernel_patches/targets/3.10-rhel7.6.target
 lustre/kernel_patches/targets/3.10-rhel7.5.target
 lustre/kernel_patches/targets/4.14-rhel7.5.target
 lustre/kernel_patches/targets/4.14-rhel7.6.target
-lustre/kernel_patches/targets/2.6-rhel6.9.target
-lustre/kernel_patches/targets/2.6-rhel6.8.target
-lustre/kernel_patches/targets/2.6-rhel6.7.target
-lustre/kernel_patches/targets/2.6-rhel6.6.target
-lustre/kernel_patches/targets/2.6-rhel6.target
-lustre/kernel_patches/targets/2.6-rhel5.target
-lustre/kernel_patches/targets/2.6-sles11.target
 lustre/kernel_patches/targets/3.0-sles11.target
 lustre/kernel_patches/targets/3.0-sles11sp3.target
 lustre/kernel_patches/targets/3.0-sles11sp4.target
 lustre/kernel_patches/targets/3.12-sles12.target
 lustre/kernel_patches/targets/4.4-sles12.target
 lustre/kernel_patches/targets/4.4-sles12sp3.target
-lustre/kernel_patches/targets/2.6-fc11.target
-lustre/kernel_patches/targets/2.6-fc12.target
-lustre/kernel_patches/targets/2.6-fc15.target
+lustre/kernel_patches/targets/4.12-sles12sp4.target
 lustre/kernel_patches/targets/3.x-fc18.target
 lustre/ldlm/Makefile
 lustre/fid/Makefile