diff options
Diffstat (limited to 'config')
| -rw-r--r-- | config/spl-build.m4 | 508 |
1 files changed, 329 insertions, 179 deletions
diff --git a/config/spl-build.m4 b/config/spl-build.m4 index 466d9eb50..7ec81e713 100644 --- a/config/spl-build.m4 +++ b/config/spl-build.m4 @@ -137,7 +137,7 @@ AC_DEFUN([SPL_AC_KERNEL], [ sourcelink=$(readlink -f "$headersdir") else sourcelink=$(ls -1d /usr/src/kernels/* \ - /usr/src/linux-* \ + /usr/src/linux-* \ 2>/dev/null | grep -v obj | tail -1) fi @@ -678,8 +678,7 @@ dnl # dnl # SPL_CHECK_SYMBOL_EXPORT dnl # check symbol exported or not dnl # -AC_DEFUN([SPL_CHECK_SYMBOL_EXPORT], - [AC_MSG_CHECKING([whether symbol $1 is exported]) +AC_DEFUN([SPL_CHECK_SYMBOL_EXPORT], [ grep -q -E '[[[:space:]]]$1[[[:space:]]]' \ $LINUX_OBJ/Module*.symvers 2>/dev/null rc=$? @@ -689,25 +688,43 @@ AC_DEFUN([SPL_CHECK_SYMBOL_EXPORT], grep -q -E "EXPORT_SYMBOL.*($1)" \ "$LINUX_OBJ/$file" 2>/dev/null rc=$? - if test $rc -eq 0; then - export=1 - break; - fi + if test $rc -eq 0; then + export=1 + break; + fi done - if test $export -eq 0; then - AC_MSG_RESULT([no]) + if test $export -eq 0; then : $4 - else - AC_MSG_RESULT([yes]) + else : $3 fi - else - AC_MSG_RESULT([yes]) + else : $3 fi ]) dnl # +dnl # SPL_LINUX_TRY_COMPILE_SYMBOL +dnl # like SPL_LINUX_TRY_COMPILE, except SPL_CHECK_SYMBOL_EXPORT +dnl # is called if not compiling for builtin +dnl # +AC_DEFUN([SPL_LINUX_TRY_COMPILE_SYMBOL], [ + SPL_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1]) + if test $rc -ne 0; then : + $6 + else + if test "x$enable_linux_builtin" != xyes; then + SPL_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1]) + fi + if test $rc -ne 0; then : + $6 + else : + $5 + fi + fi +]) + +dnl # dnl # SPL_CHECK_SYMBOL_HEADER dnl # check if a symbol prototype is defined in listed headers. dnl # @@ -717,10 +734,10 @@ AC_DEFUN([SPL_CHECK_SYMBOL_HEADER], [ for file in $3; do grep -q "$2" "$LINUX/$file" 2>/dev/null rc=$? - if test $rc -eq 0; then - header=1 - break; - fi + if test $rc -eq 0; then + header=1 + break; + fi done if test $header -eq 0; then AC_MSG_RESULT([no]) @@ -991,10 +1008,18 @@ AC_DEFUN([SPL_AC_PATH_IN_NAMEIDATA], dnl # dnl # Custom SPL patch may export this system it is not required dnl # -AC_DEFUN([SPL_AC_TASK_CURR], [ - SPL_CHECK_SYMBOL_EXPORT([task_curr], [kernel/sched.c], - [AC_DEFINE(HAVE_TASK_CURR, 1, [task_curr() exported])], - []) +AC_DEFUN([SPL_AC_TASK_CURR], + [AC_MSG_CHECKING([whether task_curr() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/sched.h> + ], [ + task_curr(NULL); + ], [task_curr], [kernel/sched.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_TASK_CURR, 1, [task_curr() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1060,13 +1085,15 @@ dnl # 2.6.18 API change, check whether device_create() is available. dnl # Device_create() was introduced in 2.6.18 and depricated dnl # class_device_create() which was fully removed in 2.6.26. dnl # -AC_DEFUN([SPL_AC_DEVICE_CREATE], [ - SPL_CHECK_SYMBOL_EXPORT( - [device_create], - [drivers/base/core.c], - [AC_DEFINE(HAVE_DEVICE_CREATE, 1, - [device_create() is available])], - []) +AC_DEFUN([SPL_AC_DEVICE_CREATE], + [AC_MSG_CHECKING([whether device_create() is available]) + SPL_CHECK_SYMBOL_EXPORT([device_create], [drivers/base/core.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_DEVICE_CREATE, 1, + [device_create() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1096,25 +1123,37 @@ dnl # 2.6.13 API change, check whether class_device_create() is available. dnl # Class_device_create() was introduced in 2.6.13 and depricated dnl # class_simple_device_add() which was fully removed in 2.6.13. dnl # -AC_DEFUN([SPL_AC_CLASS_DEVICE_CREATE], [ - SPL_CHECK_SYMBOL_EXPORT( - [class_device_create], - [drivers/base/class.c], - [AC_DEFINE(HAVE_CLASS_DEVICE_CREATE, 1, - [class_device_create() is available])], - []) +AC_DEFUN([SPL_AC_CLASS_DEVICE_CREATE], + [AC_MSG_CHECKING([whether class_device_create() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/device.h> + ], [ + class_device_create(NULL, NULL, 0, NULL, NULL); + ], [class_device_create], [drivers/base/class.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_CLASS_DEVICE_CREATE, 1, + [class_device_create() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # dnl # 2.6.26 API change, set_normalized_timespec() is exported. dnl # -AC_DEFUN([SPL_AC_SET_NORMALIZED_TIMESPEC_EXPORT], [ - SPL_CHECK_SYMBOL_EXPORT( - [set_normalized_timespec], - [kernel/time.c], - [AC_DEFINE(HAVE_SET_NORMALIZED_TIMESPEC_EXPORT, 1, - [set_normalized_timespec() is available as export])], - []) +AC_DEFUN([SPL_AC_SET_NORMALIZED_TIMESPEC_EXPORT], + [AC_MSG_CHECKING([whether set_normalized_timespec() is available as export]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/time.h> + ], [ + set_normalized_timespec(NULL, 0, 0); + ], [set_normalized_timespec], [kernel/time.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SET_NORMALIZED_TIMESPEC_EXPORT, 1, + [set_normalized_timespec() is available as export]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1264,13 +1303,19 @@ dnl # 2.6.9 API change, dnl # check whether 'monotonic_clock()' is available it may dnl # be available for some archs but not others. dnl # -AC_DEFUN([SPL_AC_MONOTONIC_CLOCK], [ - SPL_CHECK_SYMBOL_EXPORT( - [monotonic_clock], - [], - [AC_DEFINE(HAVE_MONOTONIC_CLOCK, 1, - [monotonic_clock() is available])], - []) +AC_DEFUN([SPL_AC_MONOTONIC_CLOCK], + [AC_MSG_CHECKING([whether monotonic_clock() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/timex.h> + ], [ + monotonic_clock(); + ], [monotonic_clock], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_MONOTONIC_CLOCK, 1, + [monotonic_clock() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1384,13 +1429,19 @@ dnl # dnl # 2.6.18 API change, dnl # kallsyms_lookup_name no longer exported dnl # -AC_DEFUN([SPL_AC_KALLSYMS_LOOKUP_NAME], [ - SPL_CHECK_SYMBOL_EXPORT( - [kallsyms_lookup_name], - [], - [AC_DEFINE(HAVE_KALLSYMS_LOOKUP_NAME, 1, - [kallsyms_lookup_name() is available])], - []) +AC_DEFUN([SPL_AC_KALLSYMS_LOOKUP_NAME], + [AC_MSG_CHECKING([whether kallsyms_lookup_name() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/kallsyms.h> + ], [ + kallsyms_lookup_name(NULL); + ], [kallsyms_lookup_name], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_KALLSYMS_LOOKUP_NAME, 1, + [kallsyms_lookup_name() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1400,13 +1451,15 @@ dnl # custom kernel with the *-spl-export-symbols.patch which will export dnl # these symbols for use. If your already rolling a custom kernel for dnl # your environment this is recommended. dnl # -AC_DEFUN([SPL_AC_GET_VMALLOC_INFO], [ - SPL_CHECK_SYMBOL_EXPORT( - [get_vmalloc_info], - [], - [AC_DEFINE(HAVE_GET_VMALLOC_INFO, 1, - [get_vmalloc_info() is available])], - []) +AC_DEFUN([SPL_AC_GET_VMALLOC_INFO], + [AC_MSG_CHECKING([whether get_vmalloc_info() is available]) + SPL_CHECK_SYMBOL_EXPORT([get_vmalloc_info], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_GET_VMALLOC_INFO, 1, + [get_vmalloc_info() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1428,7 +1481,7 @@ AC_DEFUN([SPL_AC_PGDAT_HELPERS], [ rc=$? if test $rc -eq 0; then AC_MSG_RESULT([yes]) - AC_DEFINE(HAVE_PGDAT_HELPERS, 1, [pgdat helpers are available]) + AC_DEFINE(HAVE_PGDAT_HELPERS, 1, [pgdat helpers are available]) else AC_MSG_RESULT([no]) fi @@ -1441,13 +1494,19 @@ dnl # custom kernel with the *-spl-export-symbols.patch which will export dnl # these symbols for use. If your already rolling a custom kernel for dnl # your environment this is recommended. dnl # -AC_DEFUN([SPL_AC_FIRST_ONLINE_PGDAT], [ - SPL_CHECK_SYMBOL_EXPORT( - [first_online_pgdat], - [], - [AC_DEFINE(HAVE_FIRST_ONLINE_PGDAT, 1, - [first_online_pgdat() is available])], - []) +AC_DEFUN([SPL_AC_FIRST_ONLINE_PGDAT], + [AC_MSG_CHECKING([whether first_online_pgdat() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/mmzone.h> + ], [ + first_online_pgdat(); + ], [first_online_pgdat], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_FIRST_ONLINE_PGDAT, 1, + [first_online_pgdat() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1457,13 +1516,19 @@ dnl # custom kernel with the *-spl-export-symbols.patch which will export dnl # these symbols for use. If your already rolling a custom kernel for dnl # your environment this is recommended. dnl # -AC_DEFUN([SPL_AC_NEXT_ONLINE_PGDAT], [ - SPL_CHECK_SYMBOL_EXPORT( - [next_online_pgdat], - [], - [AC_DEFINE(HAVE_NEXT_ONLINE_PGDAT, 1, - [next_online_pgdat() is available])], - []) +AC_DEFUN([SPL_AC_NEXT_ONLINE_PGDAT], + [AC_MSG_CHECKING([whether next_online_pgdat() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/mmzone.h> + ], [ + next_online_pgdat(NULL); + ], [next_online_pgdat], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_NEXT_ONLINE_PGDAT, 1, + [next_online_pgdat() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1473,26 +1538,35 @@ dnl # custom kernel with the *-spl-export-symbols.patch which will export dnl # these symbols for use. If your already rolling a custom kernel for dnl # your environment this is recommended. dnl # -AC_DEFUN([SPL_AC_NEXT_ZONE], [ - SPL_CHECK_SYMBOL_EXPORT( - [next_zone], - [], - [AC_DEFINE(HAVE_NEXT_ZONE, 1, - [next_zone() is available])], - []) +AC_DEFUN([SPL_AC_NEXT_ZONE], + [AC_MSG_CHECKING([whether next_zone() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/mmzone.h> + ], [ + next_zone(NULL); + ], [next_zone], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_NEXT_ZONE, 1, [next_zone() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # dnl # 2.6.17 API change, dnl # See SPL_AC_PGDAT_HELPERS for details. dnl # -AC_DEFUN([SPL_AC_PGDAT_LIST], [ - SPL_CHECK_SYMBOL_EXPORT( - [pgdat_list], - [], - [AC_DEFINE(HAVE_PGDAT_LIST, 1, - [pgdat_list is available])], - []) +AC_DEFUN([SPL_AC_PGDAT_LIST], + [AC_MSG_CHECKING([whether pgdat_list is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/topology.h> + pg_data_t *tmp = pgdat_list; + ], [], [pgdat_list], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_PGDAT_LIST, 1, [pgdat_list is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1684,12 +1758,18 @@ AC_DEFUN([SPL_AC_GET_ZONE_COUNTS], [ AC_DEFINE(NEED_GET_ZONE_COUNTS, 1, [get_zone_counts() is needed]) - SPL_CHECK_SYMBOL_EXPORT( - [get_zone_counts], - [], - [AC_DEFINE(HAVE_GET_ZONE_COUNTS, 1, - [get_zone_counts() is available])], - []) + AC_MSG_CHECKING([whether get_zone_counts() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/mmzone.h> + ], [ + get_zone_counts(NULL, NULL, NULL); + ], [get_zone_counts], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_GET_ZONE_COUNTS, 1, + [get_zone_counts() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) ]) @@ -1697,25 +1777,37 @@ dnl # dnl # 2.6.27 API change, dnl # The user_path_dir() replaces __user_walk() dnl # -AC_DEFUN([SPL_AC_USER_PATH_DIR], [ - SPL_CHECK_SYMBOL_EXPORT( - [user_path_at], - [], - [AC_DEFINE(HAVE_USER_PATH_DIR, 1, - [user_path_dir() is available])], - []) +AC_DEFUN([SPL_AC_USER_PATH_DIR], + [AC_MSG_CHECKING([whether user_path_dir() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/fcntl.h> + #include <linux/namei.h> + ], [ + user_path_dir(NULL, NULL); + ], [user_path_at], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_USER_PATH_DIR, 1, [user_path_dir() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # dnl # Symbol available in RHEL kernels not in stock kernels. dnl # -AC_DEFUN([SPL_AC_SET_FS_PWD], [ - SPL_CHECK_SYMBOL_EXPORT( - [set_fs_pwd], - [], - [AC_DEFINE(HAVE_SET_FS_PWD, 1, - [set_fs_pwd() is available])], - []) +AC_DEFUN([SPL_AC_SET_FS_PWD], + [AC_MSG_CHECKING([whether set_fs_pwd() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/spinlock.h> + #include <linux/fs_struct.h> + ], [ + (void) set_fs_pwd; + ], [set_fs_pwd], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SET_FS_PWD, 1, [set_fs_pwd() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1823,26 +1915,37 @@ AC_DEFUN([SPL_AC_CRED_STRUCT], [ dnl # dnl # Custom SPL patch may export this symbol. dnl # -AC_DEFUN([SPL_AC_GROUPS_SEARCH], [ - SPL_CHECK_SYMBOL_EXPORT( - [groups_search], - [], - [AC_DEFINE(HAVE_GROUPS_SEARCH, 1, - [groups_search() is available])], - []) +AC_DEFUN([SPL_AC_GROUPS_SEARCH], + [AC_MSG_CHECKING([whether groups_search() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/cred.h> + ], [ + groups_search(NULL, 0); + ], [groups_search], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_GROUPS_SEARCH, 1, [groups_search() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # dnl # 2.6.x API change, dnl # __put_task_struct() was exported in RHEL5 but unavailable elsewhere. dnl # -AC_DEFUN([SPL_AC_PUT_TASK_STRUCT], [ - SPL_CHECK_SYMBOL_EXPORT( - [__put_task_struct], - [], - [AC_DEFINE(HAVE_PUT_TASK_STRUCT, 1, - [__put_task_struct() is available])], - []) +AC_DEFUN([SPL_AC_PUT_TASK_STRUCT], + [AC_MSG_CHECKING([whether __put_task_struct() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/sched.h> + ], [ + __put_task_struct(NULL); + ], [__put_task_struct], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_PUT_TASK_STRUCT, 1, + [__put_task_struct() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1868,25 +1971,36 @@ dnl # dnl # 2.6.x API change, dnl # kvasprintf() function added. dnl # -AC_DEFUN([SPL_AC_KVASPRINTF], [ - SPL_CHECK_SYMBOL_EXPORT( - [kvasprintf], - [], - [AC_DEFINE(HAVE_KVASPRINTF, 1, - [kvasprintf() is available])], - []) +AC_DEFUN([SPL_AC_KVASPRINTF], + [AC_MSG_CHECKING([whether kvasprintf() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/kernel.h> + ], [ + kvasprintf(0, NULL, *((va_list*)NULL)); + ], [kvasprintf], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_KVASPRINTF, 1, [kvasprintf() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # dnl # 2.6.29 API change, dnl # vfs_fsync() funcation added, prior to this use file_fsync(). dnl # -AC_DEFUN([SPL_AC_VFS_FSYNC], [ - SPL_CHECK_SYMBOL_EXPORT( - [vfs_fsync], - [fs/sync.c], - [AC_DEFINE(HAVE_VFS_FSYNC, 1, [vfs_fsync() is available])], - []) +AC_DEFUN([SPL_AC_VFS_FSYNC], + [AC_MSG_CHECKING([whether vfs_fsync() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/fs.h> + ], [ + (void) vfs_fsync; + ], [vfs_fsync], [fs/sync.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_VFS_FSYNC, 1, [vfs_fsync() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1914,13 +2028,18 @@ dnl # condition. The fixed version is exported as a symbol. The race dnl # condition is fixed by acquiring sem->wait_lock, so we must not dnl # call that version while holding sem->wait_lock. dnl # -AC_DEFUN([SPL_AC_EXPORTED_RWSEM_IS_LOCKED], [ - SPL_CHECK_SYMBOL_EXPORT( - [rwsem_is_locked], - [lib/rwsem-spinlock.c], - [AC_DEFINE(RWSEM_IS_LOCKED_TAKES_WAIT_LOCK, 1, - [rwsem_is_locked() acquires sem->wait_lock])], - []) +AC_DEFUN([SPL_AC_EXPORTED_RWSEM_IS_LOCKED], + [AC_MSG_CHECKING([whether rwsem_is_locked() acquires sem->wait_lock]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/rwsem.h> + int rwsem_is_locked(struct rw_semaphore *sem) { return 0; } + ], [], [rwsem_is_locked], [lib/rwsem-spinlock.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(RWSEM_IS_LOCKED_TAKES_WAIT_LOCK, 1, + [rwsem_is_locked() acquires sem->wait_lock]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1937,18 +2056,31 @@ dnl # of these functions are exported invalidate_inodes() can be dnl # safely used. dnl # AC_DEFUN([SPL_AC_KERNEL_INVALIDATE_INODES], [ - SPL_CHECK_SYMBOL_EXPORT( - [invalidate_inodes], - [], - [AC_DEFINE(HAVE_INVALIDATE_INODES, 1, - [invalidate_inodes() is available])], - []) - SPL_CHECK_SYMBOL_EXPORT( - [invalidate_inodes_check], - [], - [AC_DEFINE(HAVE_INVALIDATE_INODES_CHECK, 1, - [invalidate_inodes_check() is available])], - []) + AC_MSG_CHECKING([whether invalidate_inodes() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/fs.h> + ], [ + invalidate_inodes; + ], [invalidate_inodes], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_INVALIDATE_INODES, 1, + [invalidate_inodes() is available]) + ], [ + AC_MSG_RESULT(no) + ]) + + AC_MSG_CHECKING([whether invalidate_inodes_check() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/fs.h> + ], [ + invalidate_inodes_check(NULL, 0); + ], [invalidate_inodes_check], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_INVALIDATE_INODES_CHECK, 1, + [invalidate_inodes_check() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -1987,13 +2119,19 @@ dnl # There currently exists no exposed API to partially shrink the dcache. dnl # The expected mechanism to shrink the cache is a registered shrinker dnl # which is called during memory pressure. dnl # -AC_DEFUN([SPL_AC_SHRINK_DCACHE_MEMORY], [ - SPL_CHECK_SYMBOL_EXPORT( - [shrink_dcache_memory], - [fs/dcache.c], - [AC_DEFINE(HAVE_SHRINK_DCACHE_MEMORY, 1, - [shrink_dcache_memory() is available])], - []) +AC_DEFUN([SPL_AC_SHRINK_DCACHE_MEMORY], + [AC_MSG_CHECKING([whether shrink_dcache_memory() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/dcache.h> + ], [ + shrink_dcache_memory(0, 0); + ], [shrink_dcache_memory], [fs/dcache.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SHRINK_DCACHE_MEMORY, 1, + [shrink_dcache_memory() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -2002,13 +2140,19 @@ dnl # There currently exists no exposed API to partially shrink the icache. dnl # The expected mechanism to shrink the cache is a registered shrinker dnl # which is called during memory pressure. dnl # -AC_DEFUN([SPL_AC_SHRINK_ICACHE_MEMORY], [ - SPL_CHECK_SYMBOL_EXPORT( - [shrink_icache_memory], - [fs/inode.c], - [AC_DEFINE(HAVE_SHRINK_ICACHE_MEMORY, 1, - [shrink_icache_memory() is available])], - []) +AC_DEFUN([SPL_AC_SHRINK_ICACHE_MEMORY], + [AC_MSG_CHECKING([whether shrink_icache_memory() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/dcache.h> + ], [ + shrink_icache_memory(0, 0); + ], [shrink_icache_memory], [fs/inode.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SHRINK_ICACHE_MEMORY, 1, + [shrink_icache_memory() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # @@ -2034,13 +2178,19 @@ dnl # The kern_path_parent() symbol is no longer exported by the kernel. dnl # However, it remains the prefered interface and since we still have dnl # access to the prototype we dynamically lookup the required address. dnl # -AC_DEFUN([SPL_AC_KERN_PATH_PARENT_SYMBOL], [ - SPL_CHECK_SYMBOL_EXPORT( - [kern_path_parent], - [fs/namei.c], - [AC_DEFINE(HAVE_KERN_PATH_PARENT_SYMBOL, 1, - [kern_path_parent() is available])], - []) +AC_DEFUN([SPL_AC_KERN_PATH_PARENT_SYMBOL], + [AC_MSG_CHECKING([whether kern_path_parent() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/namei.h> + ], [ + kern_path_parent(NULL, NULL); + ], [kern_path_parent], [fs/namei.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_KERN_PATH_PARENT_SYMBOL, 1, + [kern_path_parent() is available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) dnl # |