]) # LIBCFS_IOV_ITER_HAS_TYPE
#
+# LIBCFS_HAVE_NS_TO_TIMESPEC64
+#
+# Kernel version 4.16-rc3 commit a84d1169164b274f13b97a23ff235c000efe3b49
+# introduced struct __kernel_old_timeval
+#
+AC_DEFUN([LIBCFS_HAVE_NS_TO_TIMESPEC64],[
+LB_CHECK_COMPILE([does 'ns_to_timespec64()' exist],
+kernel_old_timeval, [
+ #include <linux/time.h>
+],[
+ struct timespec64 kts;
+
+ kts = ns_to_timespec64(0);
+],[
+ AC_DEFINE(HAVE_NS_TO_TIMESPEC64, 1,
+ [ns_to_timespec64() is available])
+])
+]) # LIBCFS_HAVE_NS_TO_TIMESPEC64
+
+#
# Kernel version 3.17 changed hlist_add_after to
# hlist_add_behind
#
# introduced refcount_t which is atomic_t plus over flow guards.
#
AC_DEFUN([LIBCFS_REFCOUNT_T], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
LB_CHECK_LINUX_HEADER([linux/refcount.h], [
AC_DEFINE(HAVE_REFCOUNT_T, 1,
- [refcount_t is supported])])
+ [refcount_t is supported])
+])
+EXTRA_KCFLAGS="$tmp_flags"
]) # LIBCFS_REFCOUNT_T
#
+# Kernel version 4.12 commit 499118e966f1d2150bd66647c8932343c4e9a0b8
+# introduce memalloc_noreclaim_{save,restore}
+#
+AC_DEFUN([LIBCFS_MEMALLOC_NORECLAIM], [
+LB_CHECK_COMPILE([if memalloc_noreclaim_{save,restore} exist],
+memalloc_noreclaim, [
+ #include <linux/sched/mm.h>
+],[
+ int flag = memalloc_noreclaim_save();
+ memalloc_noreclaim_restore(flag);
+],[
+ AC_DEFINE(HAVE_MEMALLOC_RECLAIM, 1,
+ [memalloc_noreclaim_{save,restore}() is supported])
+])
+]) # LIBCFS_MEMALLOC_NORECLAIM
+
+#
# LIBCFS_SCHED_HEADERS
#
# 4.11 has broken up sched.h into more headers.
]) # LIBCFS_SCHED_HEADERS
#
+# Kernel version 4.11-rc1 commit 2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e
+# introduce kref_read
+#
+AC_DEFUN([LIBCFS_KREF_READ], [
+LB_CHECK_COMPILE([if 'kref_read' exists],
+kref_read, [
+ #include <linux/kref.h>
+],[
+ kref_read(NULL);
+],[
+ AC_DEFINE(HAVE_KREF_READ, 1,
+ [kref_read() is available])
+])
+]) LIBCFS_KREF_READ
+
+#
# Kernel version 4.11-rc1 commit da20420f83ea0fbcf3d03afda08d971ea1d8a356
# introduced rht_bucket_var
#
]) # LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
#
+# Kernel version 4.12-rc2 8f553c498e1772cccb39a114da4a498d22992758
+# provide proper CPU hotplug locking
+#
+AC_DEFUN([LIBCFS_CPUS_READ_LOCK], [
+LB_CHECK_COMPILE([if 'cpus_read_[un]lock' exist],
+cpu_read_lock, [
+ #include <linux/cpu.h>
+],[
+ cpus_read_lock();
+ cpus_read_unlock();
+],[
+ AC_DEFINE(HAVE_CPUS_READ_LOCK, 1, ['cpus_read_lock' exist])
+])
+]) # LIBCFS_CPUS_READ_LOCK
+
+#
# Kernel version 4.12-rc3 f9727a17db9bab71ddae91f74f11a8a2f9a0ece6
# renamed uuid_be to uuid_t
#
# introduce processor.h
#
AC_DEFUN([LIBCFS_HAVE_PROCESSOR_HEADER], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
LB_CHECK_LINUX_HEADER([linux/processor.h], [
AC_DEFINE(HAVE_PROCESSOR_H, 1,
- [processor.h is present])])
+ [processor.h is present])
+])
+EXTRA_KCFLAGS="$tmp_flags"
]) # LIBCFS_HAVE_PROCESSOR_HEADER
#
]) # LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
#
+# LIBCFS_LOCKDEP_IS_HELD
+#
+# Kernel v4.15-rc8-106-g08f36ff64234
+# lockdep: Make lockdep checking constant
+#
+AC_DEFUN([LIBCFS_LOCKDEP_IS_HELD], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if 'lockdep_is_held()' uses const argument],
+lockdep_is_held, [
+ #include <linux/lockdep.h>
+],[
+#ifdef CONFIG_LOCKDEP
+ const struct spinlock *lock = NULL;
+
+ lockdep_is_held(lock);
+#endif
+],[],[
+ AC_DEFINE(NEED_LOCKDEP_IS_HELD_DISCARD_CONST, 1,
+ [lockdep_is_held() argument is const])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_LOCKDEP_IS_HELD
+
+#
# LIBCFS_TIMER_SETUP
#
# Kernel version 4.15 commit e99e88a9d2b067465adaa9c111ada99a041bef9a
]) # LIBCFS_WAIT_VAR_EVENT
#
+# LIBCFS_BITMAP_ALLOC
+#
+# Kernel version 4.17 commit c42b65e363ce97a828f81b59033c3558f8fa7f70
+# added bitmap memory allocation handling.
+#
+AC_DEFUN([LIBCFS_BITMAP_ALLOC], [
+LB_CHECK_COMPILE([if Linux bitmap memory management exist],
+bitmap_alloc, [
+ #include <linux/bitmap.h>
+],[
+ unsigned long *map = bitmap_alloc(1, GFP_KERNEL);
+],[
+ AC_DEFINE(HAVE_BITMAP_ALLOC, 1,
+ [Linux bitmap can be allocated])
+])
+]) # LIBCFS_BITMAP_ALLOC
+
+#
# LIBCFS_CLEAR_AND_WAKE_UP_BIT
#
# Kernel version 4.17-rc2 commit 8236b0ae31c837d2b3a2565c5f8d77f637e824cc
]) # LIBCFS_CLEAR_AND_WAKE_UP_BIT
#
+# LIBCFS_XARRAY_SUPPORT
+#
+# 4.19-rc5 kernel commit 3159f943aafdbacb2f94c38fdaadabf2bbde2a14
+# replaced the radix tree implementation with Xarrays. This change
+# introduced functionaly needed for general Xarray support
+#
+AC_DEFUN([LIBCFS_XARRAY_SUPPORT], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if page cache uses Xarray],
+xarray_support, [
+ #include <linux/xarray.h>
+],[
+ xa_is_value(NULL);
+],[
+ AC_DEFINE(HAVE_XARRAY_SUPPORT, 1,
+ [kernel Xarray implementation lacks 'xa_is_value'])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_XARRAY_SUPPORT
+
+#
# LIBCFS_HAVE_IOV_ITER_TYPE
#
# kernel 4.20 commit 00e23707442a75b404392cef1405ab4fd498de6b
]) # LIBCFS_HAVE_IOV_ITER_TYPE
#
+# LIBCFS_GET_REQUEST_KEY_AUTH
+#
+# kernel 5.0 commit 822ad64d7e46a8e2c8b8a796738d7b657cbb146d
+# keys: Fix dependency loop between construction record and auth key
+#
+# Added <keys/request_key_auth-type.h> and get_request_key_auth()
+# which was propagated to stable
+#
+AC_DEFUN([LIBCFS_GET_REQUEST_KEY_AUTH], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if get_request_key_auth() is available],
+get_request_key_auth_exported, [
+ #include <linux/key.h>
+ #include <linux/keyctl.h>
+ #include <keys/request_key_auth-type.h>
+],[
+ struct key *ring;
+ const struct key *key = NULL;
+ struct request_key_auth *rka = get_request_key_auth(key);
+
+ ring = key_get(rka->dest_keyring);
+],[
+ AC_DEFINE(HAVE_GET_REQUEST_KEY_AUTH, 1,
+ [get_request_key_auth() is available])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_GET_REQUEST_KEY_AUTH
+
+#
+# LIBCFS_LOOKUP_USER_KEY
+#
+# kernel 5.3 commit 3cf5d076fb4d48979f382bc9452765bf8b79e740
+# signal: Remove task parameter from force_sig
+#
+AC_DEFUN([LIBCFS_LOOKUP_USER_KEY], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if lookup_user_key() is available],
+lookup_user_key_exported, [
+ #include <linux/key.h>
+ #include <linux/keyctl.h>
+],[
+ lookup_user_key(KEY_SPEC_USER_KEYRING, 0, 0);
+],[
+ AC_DEFINE(HAVE_LOOKUP_USER_KEY, 1,
+ [lookup_user_key() is available])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_LOOKUP_USER_KEY
+
+#
# LIBCFS_FORCE_SIG_WITH_TASK
#
# kernel 5.3 commit 3cf5d076fb4d48979f382bc9452765bf8b79e740
]) # LIBCFS_CACHE_DETAIL_WRITERS
#
+# LIBCFS_VMALLOC_2ARGS
+#
+# kernel v5.8-rc1~201^2~19
+# mm: remove the pgprot argument to __vmalloc
+AC_DEFUN([LIBCFS_VMALLOC_2ARGS], [
+LB_CHECK_COMPILE([if __vmalloc has 2 args],
+vmalloc_2args, [
+ #include <linux/vmalloc.h>
+],[
+ __vmalloc(0, 0);
+],[
+ AC_DEFINE(HAVE_VMALLOC_2ARGS, 1,
+ [__vmalloc only takes 2 args.])
+])
+]) # LIBCFS_VMALLOC_2ARGS
+
+#
+# LIBCFS_HAVE_NR_UNSTABLE_NFS
+#
+# kernel v5.8-rc1~201^2~75
+# mm/writeback: discard NR_UNSTABLE_NFS, use NR_WRITEBACK instead
+#
+AC_DEFUN([LIBCFS_HAVE_NR_UNSTABLE_NFS], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if NR_UNSTABLE_NFS still in use],
+nr_unstable_nfs_exists, [
+ #include <linux/mm.h>
+
+ int i;
+],[
+ i = NR_UNSTABLE_NFS;
+],[
+ AC_DEFINE(HAVE_NR_UNSTABLE_NFS, 1,
+ [NR_UNSTABLE_NFS is still in use.])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_HAVE_NR_UNSTABLE_NFS
+
+#
+# LIBCFS_HAVE_MMAP_LOCK
+#
+# kernel v5.8-rc1~83^2~24
+# mmap locking API: rename mmap_sem to mmap_lock
+#
+AC_DEFUN([LIBCFS_HAVE_MMAP_LOCK], [
+LB_CHECK_COMPILE([if mmap_lock API is available],
+mmap_write_lock, [
+ #include <linux/mm.h>
+],[
+ mmap_write_lock(NULL);
+],[
+ AC_DEFINE(HAVE_MMAP_LOCK, 1,
+ [mmap_lock API is available.])
+])
+]) # LIBCFS_HAVE_MMAP_LOCK
+
+#
+# LIBCFS_KERNEL_SETSOCKOPT
+#
+# kernel v5.8-rc1~165^2~59^2
+# net: remove kernel_setsockopt
+AC_DEFUN([LIBCFS_KERNEL_SETSOCKOPT], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if kernel_setsockopt still in use],
+kernel_setsockopt_exists, [
+ #include <linux/net.h>
+],[
+ kernel_setsockopt(NULL, 0, 0, NULL, 0);
+],[
+ AC_DEFINE(HAVE_KERNEL_SETSOCKOPT, 1,
+ [kernel_setsockopt still in use])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_KERNEL_SETSOCKOPT
+
+AC_DEFUN([LIBCFS_PROG_LINUX_SRC], [] )
+AC_DEFUN([LIBCFS_PROG_LINUX_RESULTS], [])
+
+#
# LIBCFS_PROG_LINUX
#
# LibCFS linux kernel checks
LIBCFS_SHRINKER_COUNT
# 3.15
LIBCFS_IOV_ITER_HAS_TYPE
+# 3.16
+LIBCFS_HAVE_NS_TO_TIMESPEC64
# 3.17
LIBCFS_HLIST_ADD_AFTER
LIBCFS_TIMESPEC64
# 4.11
LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
LIBCFS_SCHED_HEADERS
+LIBCFS_KREF_READ
LIBCFS_RHT_BUCKET_VAR
# 4.12
LIBCFS_HAVE_PROCESSOR_HEADER
LIBCFS_HAVE_WAIT_BIT_HEADER
+LIBCFS_MEMALLOC_NORECLAIM
LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
+LIBCFS_CPUS_READ_LOCK
LIBCFS_UUID_T
# 4.13
LIBCFS_WAIT_QUEUE_ENTRY
LIBCFS_NEW_KERNEL_READ
LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
# 4.15
+LIBCFS_LOCKDEP_IS_HELD
LIBCFS_TIMER_SETUP
# 4.16
LIBCFS_WAIT_VAR_EVENT
# 4.17
+LIBCFS_BITMAP_ALLOC
LIBCFS_CLEAR_AND_WAKE_UP_BIT
+# 4.19
+LIBCFS_XARRAY_SUPPORT
# 4.20
LIBCFS_HAVE_IOV_ITER_TYPE
# 5.0
LIBCFS_MM_TOTALRAM_PAGES_FUNC
+LIBCFS_GET_REQUEST_KEY_AUTH
# 5.3
+LIBCFS_LOOKUP_USER_KEY
LIBCFS_FORCE_SIG_WITH_TASK
LIBCFS_CACHE_DETAIL_WRITERS
+LIBCFS_HAVE_NR_UNSTABLE_NFS
+# 5.8
+LIBCFS_HAVE_MMAP_LOCK
+LIBCFS_KERNEL_SETSOCKOPT
+LIBCFS_VMALLOC_2ARGS
]) # LIBCFS_PROG_LINUX
#
libcfs/autoconf/Makefile
libcfs/include/Makefile
libcfs/include/libcfs/Makefile
+libcfs/include/uapi/Makefile
libcfs/include/libcfs/linux/Makefile
libcfs/include/libcfs/util/Makefile
+libcfs/include/libcfs/crypto/Makefile
+libcfs/include/uapi/linux/Makefile
libcfs/libcfs/Makefile
libcfs/libcfs/autoMakefile
libcfs/libcfs/linux/Makefile
libcfs/libcfs/util/Makefile
+libcfs/libcfs/crypto/Makefile
])
]) # LIBCFS_CONFIG_FILES
git://git.whamcloud.com / fs / lustre-release.git / blobdiff