Breakout BTRFS_SETGET_FUNCS into a separate C file, the inlines were too big.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 97 insertions, 0 deletions

diff --git a/fs/btrfs/struct-funcs.c b/fs/btrfs/struct-funcs.c
new file mode 100644
index 000000000000..cf68fcf9b552
--- /dev/null
+++ b/fs/btrfs/struct-funcs.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2007 Oracle.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <linux/highmem.h>
+#define BTRFS_SETGET_FUNCS(name, type, member, bits)                    \
+u##bits btrfs_##name(struct extent_buffer *eb,                          \
+                                   type *s)                             \
+{                                                                       \
+        unsigned long offset = (unsigned long)s +                       \
+                                offsetof(type, member);                 \
+        __le##bits *tmp;                                                \
+        /* ugly, but we want the fast path here */                      \
+        if (eb->map_token && offset >= eb->map_start &&                 \
+            offset + sizeof(((type *)0)->member) <= eb->map_start +     \
+            eb->map_len) {                                              \
+                tmp = (__le##bits *)(eb->kaddr + offset -               \
+                                     eb->map_start);                    \
+                return le##bits##_to_cpu(*tmp);                         \
+        }                                                               \
+        {                                                               \
+                int err;                                                \
+                char *map_token;                                        \
+                char *kaddr;                                            \
+                int unmap_on_exit = (eb->map_token == NULL);            \
+                unsigned long map_start;                                \
+                unsigned long map_len;                                  \
+                __le##bits res;                                         \
+                err = map_extent_buffer(eb, offset,                     \
+                                sizeof(((type *)0)->member),            \
+                                &map_token, &kaddr,                     \
+                                &map_start, &map_len, KM_USER1);        \
+                if (err) {                                              \
+                        read_eb_member(eb, s, type, member, &res);      \
+                        return le##bits##_to_cpu(res);                  \
+                }                                                       \
+                tmp = (__le##bits *)(kaddr + offset - map_start);       \
+                res = le##bits##_to_cpu(*tmp);                          \
+                if (unmap_on_exit)                                      \
+                        unmap_extent_buffer(eb, map_token, KM_USER1);   \
+                return res;                                             \
+        }                                                               \
+}                                                                       \
+void btrfs_set_##name(struct extent_buffer *eb,                         \
+                                    type *s, u##bits val)               \
+{                                                                       \
+        unsigned long offset = (unsigned long)s +                       \
+                                offsetof(type, member);                 \
+        __le##bits *tmp;                                                \
+        /* ugly, but we want the fast path here */                      \
+        if (eb->map_token && offset >= eb->map_start &&                 \
+            offset + sizeof(((type *)0)->member) <= eb->map_start +     \
+            eb->map_len) {                                              \
+                tmp = (__le##bits *)(eb->kaddr + offset -               \
+                                     eb->map_start);                    \
+                *tmp = cpu_to_le##bits(val);                            \
+                return;                                                 \
+        }                                                               \
+        {                                                               \
+                int err;                                                \
+                char *map_token;                                        \
+                char *kaddr;                                            \
+                int unmap_on_exit = (eb->map_token == NULL);            \
+                unsigned long map_start;                                \
+                unsigned long map_len;                                  \
+                err = map_extent_buffer(eb, offset,                     \
+                                sizeof(((type *)0)->member),            \
+                                &map_token, &kaddr,                     \
+                                &map_start, &map_len, KM_USER1);        \
+                if (err) {                                              \
+                        val = cpu_to_le##bits(val);                     \
+                        write_eb_member(eb, s, type, member, &val);     \
+                        return;                                         \
+                }                                                       \
+                tmp = (__le##bits *)(kaddr + offset - map_start);       \
+                *tmp = cpu_to_le##bits(val);                            \
+                if (unmap_on_exit)                                      \
+                        unmap_extent_buffer(eb, map_token, KM_USER1);   \
+        }                                                               \
+}
+
+#include "ctree.h"
+