From: James Simmons <uja.ornl@gmail.com>
Date: Sun, 31 Mar 2013 13:29:12 +0000 (-0400)
Subject: LU-1812 fsfilt: ext_pblock renamed to ext4_ext_pblock
X-Git-Tag: 2.3.64~44
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=6a95f4546b50d63b9cf7e97c931f694bc25a9704

LU-1812 fsfilt: ext_pblock renamed to ext4_ext_pblock

For kernels 2.6.35 and above ext_pblock was renamed to
ext4_ext_pblock. With no more RHEL5 kernel support for
ldiskfs we also clean up more macros.

see kernel commit bf89d16f6ef5389f1b9d8046e838ec87b9b3f8b9
for pblock change.

Signed-off-by: James Simmons <uja.ornl@gmail.com>
Signed-off-by: chas williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Change-Id: I3ce7f27f6fd6826380e6f2f54b2d50d09d36f78a
Reviewed-on: http://review.whamcloud.com/5001
Tested-by: Hudson
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---

diff --git a/ldiskfs/config/ldiskfs-build.m4 b/ldiskfs/config/ldiskfs-build.m4
index d87e9f8..fc2d772 100644
--- a/ldiskfs/config/ldiskfs-build.m4
+++ b/ldiskfs/config/ldiskfs-build.m4
@@ -726,6 +726,25 @@ AC_DEFUN([LB_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD],
 ])
 
 #
+# 2.6.35 renamed ext_pblock to ext4_ext_pblock(ex)
+#
+AC_DEFUN([LB_EXT_PBLOCK],
+[AC_MSG_CHECKING([if kernel has ext_pblocks])
+ LB_LINUX_TRY_COMPILE([
+	#include <linux/fs.h>
+	#include "$EXT_DIR/ext4_extents.h"
+],[
+	ext_pblock(NULL);
+],[
+	AC_MSG_RESULT([yes])
+	AC_DEFINE(HAVE_EXT_PBLOCK, 1,
+		  [kernel has ext_pblocks])
+],[
+	AC_MSG_RESULT([no])
+])
+])
+
+#
 # LDISKFS_AC_PATCH_PROGRAM
 #
 # Determine which program should be used to apply the patches to
diff --git a/ldiskfs/configure.ac b/ldiskfs/configure.ac
index 0ef1c1d..8a3c805 100644
--- a/ldiskfs/configure.ac
+++ b/ldiskfs/configure.ac
@@ -75,6 +75,7 @@ if test x$enable_server$enable_dist = xyesno ; then
 LB_LDISKFS_EXT_DIR
 LB_LDISKFS_EXT_SOURCE
 LB_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD
+LB_EXT_PBLOCK
 fi
 
 LB_CONFIG_HEADERS
diff --git a/ldiskfs/ldiskfs/ldiskfs_config.h.in b/ldiskfs/ldiskfs/ldiskfs_config.h.in
index c0fe952..e8d72bc 100644
--- a/ldiskfs/ldiskfs/ldiskfs_config.h.in
+++ b/ldiskfs/ldiskfs/ldiskfs_config.h.in
@@ -18,3 +18,6 @@
 
 /* ext4_free_blocks do not require struct buffer_head */
 #undef HAVE_EXT_FREE_BLOCK_WITH_BUFFER_HEAD
+
+/* kernel has ext_pblocks */
+#undef HAVE_EXT_PBLOCK
diff --git a/lustre/lvfs/fsfilt_ext3.c b/lustre/lvfs/fsfilt_ext3.c
index d2ff06d..d99e005 100644
--- a/lustre/lvfs/fsfilt_ext3.c
+++ b/lustre/lvfs/fsfilt_ext3.c
@@ -60,6 +60,10 @@
 
 #include <ext4/ext4_extents.h>
 
+#ifdef HAVE_EXT_PBLOCK /* Name changed to ext4_ext_pblock for kernel 2.6.35 */
+#define ext3_ext_pblock(ex) ext_pblock((ex))
+#endif
+
 /* for kernels 2.6.18 and later */
 #define FSFILT_SINGLEDATA_TRANS_BLOCKS(sb) EXT3_SINGLEDATA_TRANS_BLOCKS(sb)
 
@@ -216,7 +220,7 @@ static long ext3_ext_find_goal(struct inode *inode, struct ext3_ext_path *path,
 
                 /* try to predict block placement */
                 if ((ex = path[depth].p_ext))
-                        return ext_pblock(ex) + (block - le32_to_cpu(ex->ee_block));
+			return ext4_ext_pblock(ex) + (block - le32_to_cpu(ex->ee_block));
 
                 /* it looks index is empty
                  * try to find starting from index itself */
@@ -372,10 +376,10 @@ static int ext3_ext_new_extent_cb(struct ext3_ext_base *base,
                 ext3_mb_discard_inode_preallocations(inode);
 #endif
 #ifdef HAVE_EXT_FREE_BLOCK_WITH_BUFFER_HEAD /* Introduced in 2.6.32-rc7 */
-		ext3_free_blocks(handle, inode, NULL, ext_pblock(&nex),
+		ext3_free_blocks(handle, inode, NULL, ext4_ext_pblock(&nex),
 				 cpu_to_le16(nex.ee_len), 0);
 #else
-		ext3_free_blocks(handle, inode, ext_pblock(&nex),
+		ext3_free_blocks(handle, inode, ext4_ext_pblock(&nex),
 				 cpu_to_le16(nex.ee_len), 0);
 #endif
                 goto out;
@@ -387,7 +391,7 @@ static int ext3_ext_new_extent_cb(struct ext3_ext_base *base,
          * scaning after that block
          */
         cex->ec_len = le16_to_cpu(nex.ee_len);
-        cex->ec_start = ext_pblock(&nex);
+	cex->ec_start = ext4_ext_pblock(&nex);
         BUG_ON(le16_to_cpu(nex.ee_len) == 0);
         BUG_ON(le32_to_cpu(nex.ee_block) != cex->ec_block);