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Commit b972e159 authored by alex's avatar alex
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changes in extents: 

  - fixed goal selection
  - more bits of batching allocation
parent 094e447f
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lustre/kernel_patches/patches/ext3-extents-2.4.20.patch
+ 20
− 26
View file @ b972e159
Index: linux-2.4.24/fs/ext3/extents.c
===================================================================
--- linux-2.4.24.orig/fs/ext3/extents.c 2003-01-30 13:24:37.000000000 +0300
+++ linux-2.4.24/fs/ext3/extents.c 2004-01-26 20:52:25.000000000 +0300
@@ -0,0 +1,2260 @@
+++ linux-2.4.24/fs/ext3/extents.c 2004-01-28 20:01:16.000000000 +0300
@@ -0,0 +1,2254 @@
+/*
+ * Copyright (C) 2003 Alex Tomas <alex@clusterfs.com>
+ *
......@@ -1842,7 +1842,7 @@ Index: linux-2.4.24/fs/ext3/extents.c
+ /* try to find previous block */
+ if (path[depth].p_ext)
+ return path[depth].p_ext->e_start +
+ path[depth].p_ext->e_num - 1;
+ path[depth].p_ext->e_num;
+
+ /* it looks index is empty
+ * try to find starting from index itself */
......@@ -1903,7 +1903,7 @@ Index: linux-2.4.24/fs/ext3/extents.c
+ tree->cex = (struct ext3_extent *) &EXT3_I(inode)->i_cached_extent;
+}
+
+#if 0
+#if EXT3_MULTIBLOCK_ALLOCATOR
+static int
+ext3_ext_new_extent_cb(struct ext3_extents_tree *tree,
+ struct ext3_ext_path *path,
......@@ -1925,14 +1925,10 @@ Index: linux-2.4.24/fs/ext3/extents.c
+
+ goal = ext3_ext_find_goal(inode, path);
+ count = newex->e_num;
+#ifdef EXT3_MULTIBLOCK_ALLOCATOR
+ pblock = ext3_new_block(handle, inode, goal, &count, NULL, &err);
+ EXT_ASSERT(count <= num);
+ pblock = ext3_new_blocks(handle, inode, &count, goal, &err);
+ EXT_ASSERT(count <= newex->e_num);
+ /* FIXME: error handling here */
+ EXT_ASSERT(err == 0);
+#else
+ pblock = 0;
+#endif
+
+ /* insert new extent */
+ newex->e_start = pblock;
......@@ -1941,12 +1937,11 @@ Index: linux-2.4.24/fs/ext3/extents.c
+ if (err)
+ goto out;
+
+
+ /* correct on-disk inode size */
+ if (newex->e_num > 0) {
+ new_i_size = (loff_t) newex->e_block + newex->e_num;
+ new_i_size = new_i_size << inode->i_blkbits;
+ if (new_i_size > i_size_read(inode))
+ new_i_size = i_size_read(inode);
+ if (new_i_size > EXT3_I(inode)->i_disksize) {
+ EXT3_I(inode)->i_disksize = new_i_size;
+ err = ext3_mark_inode_dirty(handle, inode);
......@@ -1965,14 +1960,13 @@ Index: linux-2.4.24/fs/ext3/extents.c
+ struct ext3_extents_tree tree;
+ int err;
+
+ ext3_init_tree_desc(&tree, inode);
+ ext_debug(&tree, "blocks %lu-%lu requested for inode %u\n",
+ block, block + num,(unsigned) inode->i_ino);
+
+ ext3_init_tree_desc(&tree, inode);
+ down(&EXT3_I(inode)->truncate_sem);
+ down_write(&EXT3_I(inode)->truncate_sem);
+ err = ext3_ext_walk_space(&tree, block, num, ext3_ext_new_extent_cb);
+ ext3_ext_invalidate_cache(&tree);
+ up(&EXT3_I(inode)->truncate_sem);
+ up_write(&EXT3_I(inode)->truncate_sem);
+
+ return err;
+}
......@@ -2266,7 +2260,7 @@ Index: linux-2.4.24/fs/ext3/extents.c
Index: linux-2.4.24/fs/ext3/ialloc.c
===================================================================
--- linux-2.4.24.orig/fs/ext3/ialloc.c 2004-01-14 02:58:45.000000000 +0300
+++ linux-2.4.24/fs/ext3/ialloc.c 2004-01-24 16:58:08.000000000 +0300
+++ linux-2.4.24/fs/ext3/ialloc.c 2004-01-26 23:17:19.000000000 +0300
@@ -592,11 +592,13 @@
iloc.bh = NULL;
goto fail;
......@@ -2286,7 +2280,7 @@ Index: linux-2.4.24/fs/ext3/ialloc.c
Index: linux-2.4.24/fs/ext3/inode.c
===================================================================
--- linux-2.4.24.orig/fs/ext3/inode.c 2004-01-14 02:58:45.000000000 +0300
+++ linux-2.4.24/fs/ext3/inode.c 2004-01-24 16:58:08.000000000 +0300
+++ linux-2.4.24/fs/ext3/inode.c 2004-01-26 23:17:19.000000000 +0300
@@ -848,6 +848,15 @@
goto reread;
}
......@@ -2371,7 +2365,7 @@ Index: linux-2.4.24/fs/ext3/inode.c
Index: linux-2.4.24/fs/ext3/Makefile
===================================================================
--- linux-2.4.24.orig/fs/ext3/Makefile 2004-01-14 02:58:45.000000000 +0300
+++ linux-2.4.24/fs/ext3/Makefile 2004-01-24 16:58:08.000000000 +0300
+++ linux-2.4.24/fs/ext3/Makefile 2004-01-26 23:17:19.000000000 +0300
@@ -13,7 +13,7 @@
obj-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o iopen.o \
......@@ -2384,7 +2378,7 @@ Index: linux-2.4.24/fs/ext3/Makefile
Index: linux-2.4.24/fs/ext3/super.c
===================================================================
--- linux-2.4.24.orig/fs/ext3/super.c 2004-01-14 02:58:45.000000000 +0300
+++ linux-2.4.24/fs/ext3/super.c 2004-01-24 16:58:08.000000000 +0300
+++ linux-2.4.24/fs/ext3/super.c 2004-01-26 23:17:19.000000000 +0300
@@ -530,6 +530,7 @@
int i;
......@@ -2416,7 +2410,7 @@ Index: linux-2.4.24/fs/ext3/super.c
Index: linux-2.4.24/fs/ext3/ioctl.c
===================================================================
--- linux-2.4.24.orig/fs/ext3/ioctl.c 2004-01-14 02:58:42.000000000 +0300
+++ linux-2.4.24/fs/ext3/ioctl.c 2004-01-24 16:58:08.000000000 +0300
+++ linux-2.4.24/fs/ext3/ioctl.c 2004-01-26 23:17:19.000000000 +0300
@@ -174,6 +174,10 @@
return ret;
}
......@@ -2431,7 +2425,7 @@ Index: linux-2.4.24/fs/ext3/ioctl.c
Index: linux-2.4.24/include/linux/ext3_fs.h
===================================================================
--- linux-2.4.24.orig/include/linux/ext3_fs.h 2004-01-14 02:58:45.000000000 +0300
+++ linux-2.4.24/include/linux/ext3_fs.h 2004-01-24 16:58:08.000000000 +0300
+++ linux-2.4.24/include/linux/ext3_fs.h 2004-01-26 23:17:19.000000000 +0300
@@ -184,6 +184,7 @@
#define EXT3_IMAGIC_FL 0x00002000 /* AFS directory */
#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
......@@ -2485,7 +2479,7 @@ Index: linux-2.4.24/include/linux/ext3_fs.h
Index: linux-2.4.24/include/linux/ext3_extents.h
===================================================================
--- linux-2.4.24.orig/include/linux/ext3_extents.h 2003-01-30 13:24:37.000000000 +0300
+++ linux-2.4.24/include/linux/ext3_extents.h 2004-01-24 19:28:54.000000000 +0300
+++ linux-2.4.24/include/linux/ext3_extents.h 2004-01-26 23:17:19.000000000 +0300
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) 2003 Alex Tomas <alex@clusterfs.com>
......@@ -2513,13 +2507,13 @@ Index: linux-2.4.24/include/linux/ext3_extents.h
+ * other hard changes happens much more often
+ * this is for debug purposes only
+ */
+#define AGRESSIVE_TEST_
+#define AGRESSIVE_TEST
+
+/*
+ * if CHECK_BINSEARCH defined, then results of binary search
+ * will be checked by linear search
+ */
+#define CHECK_BINSEARCH_
+#define CHECK_BINSEARCH
+
+/*
+ * if EXT_DEBUG is defined you can use 'extdebug' mount option
......@@ -2702,7 +2696,7 @@ Index: linux-2.4.24/include/linux/ext3_extents.h
Index: linux-2.4.24/include/linux/ext3_fs_i.h
===================================================================
--- linux-2.4.24.orig/include/linux/ext3_fs_i.h 2004-01-24 19:30:22.000000000 +0300
+++ linux-2.4.24/include/linux/ext3_fs_i.h 2004-01-24 19:54:39.000000000 +0300
+++ linux-2.4.24/include/linux/ext3_fs_i.h 2004-01-26 23:17:19.000000000 +0300
@@ -76,6 +76,8 @@
* by other means, so we have truncate_sem.
*/
......
lustre/kernel_patches/patches/ext3-extents-2.4.21-suse2.patch
+ 10
− 16
View file @ b972e159
Index: linux-2.4.21-suse2/fs/ext3/extents.c
===================================================================
--- linux-2.4.21-suse2.orig/fs/ext3/extents.c 2003-01-30 13:24:37.000000000 +0300
+++ linux-2.4.21-suse2/fs/ext3/extents.c 2004-01-26 22:51:30.000000000 +0300
@@ -0,0 +1,2261 @@
+++ linux-2.4.21-suse2/fs/ext3/extents.c 2004-01-28 20:15:12.000000000 +0300
@@ -0,0 +1,2255 @@
+/*
+ * Copyright (C) 2003 Alex Tomas <alex@clusterfs.com>
+ *
......@@ -1842,7 +1842,7 @@ Index: linux-2.4.21-suse2/fs/ext3/extents.c
+ /* try to find previous block */
+ if (path[depth].p_ext)
+ return path[depth].p_ext->e_start +
+ path[depth].p_ext->e_num - 1;
+ path[depth].p_ext->e_num;
+
+ /* it looks index is empty
+ * try to find starting from index itself */
......@@ -1903,7 +1903,7 @@ Index: linux-2.4.21-suse2/fs/ext3/extents.c
+ tree->cex = (struct ext3_extent *) &EXT3_I(inode)->i_cached_extent;
+}
+
+#if 0
+#if EXT3_MULTIBLOCK_ALLOCATOR
+static int
+ext3_ext_new_extent_cb(struct ext3_extents_tree *tree,
+ struct ext3_ext_path *path,
......@@ -1925,14 +1925,10 @@ Index: linux-2.4.21-suse2/fs/ext3/extents.c
+
+ goal = ext3_ext_find_goal(inode, path);
+ count = newex->e_num;
+#ifdef EXT3_MULTIBLOCK_ALLOCATOR
+ pblock = ext3_new_block(handle, inode, goal, &count, NULL, &err);
+ EXT_ASSERT(count <= num);
+ pblock = ext3_new_blocks(handle, inode, &count, goal, &err);
+ EXT_ASSERT(count <= newex->e_num);
+ /* FIXME: error handling here */
+ EXT_ASSERT(err == 0);
+#else
+ pblock = 0;
+#endif
+
+ /* insert new extent */
+ newex->e_start = pblock;
......@@ -1941,12 +1937,11 @@ Index: linux-2.4.21-suse2/fs/ext3/extents.c
+ if (err)
+ goto out;
+
+
+ /* correct on-disk inode size */
+ if (newex->e_num > 0) {
+ new_i_size = (loff_t) newex->e_block + newex->e_num;
+ new_i_size = new_i_size << inode->i_blkbits;
+ if (new_i_size > i_size_read(inode))
+ new_i_size = i_size_read(inode);
+ if (new_i_size > EXT3_I(inode)->i_disksize) {
+ EXT3_I(inode)->i_disksize = new_i_size;
+ err = ext3_mark_inode_dirty(handle, inode);
......@@ -1965,14 +1960,13 @@ Index: linux-2.4.21-suse2/fs/ext3/extents.c
+ struct ext3_extents_tree tree;
+ int err;
+
+ ext3_init_tree_desc(&tree, inode);
+ ext_debug(&tree, "blocks %lu-%lu requested for inode %u\n",
+ block, block + num,(unsigned) inode->i_ino);
+
+ ext3_init_tree_desc(&tree, inode);
+ down(&EXT3_I(inode)->truncate_sem);
+ down_write(&EXT3_I(inode)->truncate_sem);
+ err = ext3_ext_walk_space(&tree, block, num, ext3_ext_new_extent_cb);
+ ext3_ext_invalidate_cache(&tree);
+ up(&EXT3_I(inode)->truncate_sem);
+ up_write(&EXT3_I(inode)->truncate_sem);
+
+ return err;
+}
......
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