diff options
Diffstat (limited to 'config/kernel-shrink.m4')
| -rw-r--r-- | config/kernel-shrink.m4 | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/config/kernel-shrink.m4 b/config/kernel-shrink.m4 index ea748c974..479fb3a6e 100644 --- a/config/kernel-shrink.m4 +++ b/config/kernel-shrink.m4 @@ -8,15 +8,18 @@ AC_DEFUN([ZFS_AC_KERNEL_SHRINK], [ AC_MSG_CHECKING([whether super_block has s_shrink]) ZFS_LINUX_TRY_COMPILE([ #include <linux/fs.h> - ],[ - int (*shrink)(struct shrinker *, struct shrink_control *sc) - __attribute__ ((unused)) = NULL; - struct super_block sb __attribute__ ((unused)) = { + + int shrink(struct shrinker *s, struct shrink_control *sc) + { return 0; } + + static const struct super_block + sb __attribute__ ((unused)) = { .s_shrink.shrink = shrink, .s_shrink.seeks = DEFAULT_SEEKS, .s_shrink.batch = 0, }; ],[ + ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SHRINK, 1, [struct super_block has s_shrink]) @@ -29,13 +32,15 @@ AC_DEFUN([ZFS_AC_KERNEL_NR_CACHED_OBJECTS], [ AC_MSG_CHECKING([whether sops->nr_cached_objects() exists]) ZFS_LINUX_TRY_COMPILE([ #include <linux/fs.h> - ],[ - int (*nr_cached_objects)(struct super_block *) - __attribute__ ((unused)) = NULL; - struct super_operations sops __attribute__ ((unused)) = { + + int nr_cached_objects(struct super_block *sb) { return 0; } + + static const struct super_operations + sops __attribute__ ((unused)) = { .nr_cached_objects = nr_cached_objects, }; ],[ + ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_NR_CACHED_OBJECTS, 1, [sops->nr_cached_objects() exists]) @@ -48,13 +53,16 @@ AC_DEFUN([ZFS_AC_KERNEL_FREE_CACHED_OBJECTS], [ AC_MSG_CHECKING([whether sops->free_cached_objects() exists]) ZFS_LINUX_TRY_COMPILE([ #include <linux/fs.h> - ],[ - void (*free_cached_objects)(struct super_block *, int) - __attribute__ ((unused)) = NULL; - struct super_operations sops __attribute__ ((unused)) = { + + void free_cached_objects(struct super_block *sb, int x) + { return; } + + static const struct super_operations + sops __attribute__ ((unused)) = { .free_cached_objects = free_cached_objects, }; ],[ + ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_FREE_CACHED_OBJECTS, 1, [sops->free_cached_objects() exists]) |