X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;ds=inline;f=include%2Flinux%2Fvfs_compat.h;h=1d8a523cd999082edc2650d93ec7de4000c61a1e;hb=b312979252c5b566d2f59febcda67f309637e18c;hp=dce2b6f28127bf6b52587f733b967c07a5bb60fc;hpb=560bcf9d14a63e2cef4dd49d61399c8a865c1348;p=zfs.git

diff --git a/include/linux/vfs_compat.h b/include/linux/vfs_compat.h
index dce2b6f..1d8a523 100644
--- a/include/linux/vfs_compat.h
+++ b/include/linux/vfs_compat.h
@@ -41,4 +41,25 @@ insert_inode_locked(struct inode *ip)
 }
 #endif /* HAVE_INSERT_INODE_LOCKED */
 
+/*
+ * 2.6.35 API change,
+ * Add truncate_setsize() if it is not exported by the Linux kernel.
+ *
+ * Truncate the inode and pages associated with the inode. The pages are
+ * unmapped and removed from cache.
+ */
+#ifndef HAVE_TRUNCATE_SETSIZE
+static inline void
+truncate_setsize(struct inode *ip, loff_t new)
+{
+	struct address_space *mapping = ip->i_mapping;
+
+	i_size_write(ip, new);
+
+	unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1);
+	truncate_inode_pages(mapping, new);
+	unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1);
+}
+#endif /* HAVE_TRUNCATE_SETSIZE */
+
 #endif /* _ZFS_VFS_H */