vdev_disk: rewrite BIO filling machinery to avoid split pages

[mirror_zfs.git] / include / os / linux / kernel / linux / mod_compat.h

diff --git a/include/os/linux/kernel/linux/mod_compat.h b/include/os/linux/kernel/linux/mod_compat.h
index 1b15f9c6e04303ddba67f7790ab186c2a14af166..039865b703ef86e258ad8e7e843075154a7608db 100644 (file)
--- a/include/os/linux/kernel/linux/mod_compat.h
+++ b/include/os/linux/kernel/linux/mod_compat.h
@@ -44,17 +44,10 @@ typedef const struct kernel_param zfs_kernel_param_t;
 #define        ZMOD_RW 0644
 #define        ZMOD_RD 0444
 
-#define        INT int
-#define        LONG long
-/* BEGIN CSTYLED */
-#define        UINT uint
-#define        ULONG ulong
-/* END CSTYLED */
-#define        STRING charp
-
 enum scope_prefix_types {
        zfs,
        zfs_arc,
+       zfs_brt,
        zfs_condense,
        zfs_dbuf,
        zfs_dbuf_cache,
@@ -75,7 +68,7 @@ enum scope_prefix_types {
        zfs_trim,
        zfs_txg,
        zfs_vdev,
-       zfs_vdev_cache,
+       zfs_vdev_disk,
        zfs_vdev_file,
        zfs_vdev_mirror,
        zfs_vnops,
@@ -84,6 +77,50 @@ enum scope_prefix_types {
        zfs_zil
 };
 
+/*
+ * While we define our own s64/u64 types, there is no reason to reimplement the
+ * existing Linux kernel types, so we use the preprocessor to remap our
+ * "custom" implementations to the kernel ones. This is done because the CPP
+ * does not allow us to write conditional definitions. The fourth definition
+ * exists because the CPP will not allow us to replace things like INT with int
+ * before string concatenation.
+ */
+
+#define        spl_param_set_int param_set_int
+#define        spl_param_get_int param_get_int
+#define        spl_param_ops_int param_ops_int
+#define        spl_param_ops_INT param_ops_int
+
+#define        spl_param_set_long param_set_long
+#define        spl_param_get_long param_get_long
+#define        spl_param_ops_long param_ops_long
+#define        spl_param_ops_LONG param_ops_long
+
+#define        spl_param_set_uint param_set_uint
+#define        spl_param_get_uint param_get_uint
+#define        spl_param_ops_uint param_ops_uint
+#define        spl_param_ops_UINT param_ops_uint
+
+#define        spl_param_set_ulong param_set_ulong
+#define        spl_param_get_ulong param_get_ulong
+#define        spl_param_ops_ulong param_ops_ulong
+#define        spl_param_ops_ULONG param_ops_ulong
+
+#define        spl_param_set_charp param_set_charp
+#define        spl_param_get_charp param_get_charp
+#define        spl_param_ops_charp param_ops_charp
+#define        spl_param_ops_STRING param_ops_charp
+
+int spl_param_set_s64(const char *val, zfs_kernel_param_t *kp);
+extern int spl_param_get_s64(char *buffer, zfs_kernel_param_t *kp);
+extern const struct kernel_param_ops spl_param_ops_s64;
+#define        spl_param_ops_S64 spl_param_ops_s64
+
+extern int spl_param_set_u64(const char *val, zfs_kernel_param_t *kp);
+extern int spl_param_get_u64(char *buffer, zfs_kernel_param_t *kp);
+extern const struct kernel_param_ops spl_param_ops_u64;
+#define        spl_param_ops_U64 spl_param_ops_u64
+
 /*
  * Declare a module parameter / sysctl node
  *
@@ -116,7 +153,8 @@ enum scope_prefix_types {
        _Static_assert( \
            sizeof (scope_prefix) == sizeof (enum scope_prefix_types), \
            "" #scope_prefix " size mismatch with enum scope_prefix_types"); \
-       module_param(name_prefix ## name, type, perm); \
+       module_param_cb(name_prefix ## name, &spl_param_ops_ ## type, \
+           &name_prefix ## name, perm); \
        MODULE_PARM_DESC(name_prefix ## name, desc)
 
 /*