+++ /dev/null
-Index: linux-2.6.16.46-0.14/include/linux/ext3_fs_i.h
-===================================================================
---- linux-2.6.16.46-0.14.orig/include/linux/ext3_fs_i.h
-+++ linux-2.6.16.46-0.14/include/linux/ext3_fs_i.h
-@@ -135,6 +135,10 @@ struct ext3_inode_info {
- struct inode vfs_inode;
-
- __u32 i_cached_extent[4];
-+
-+ /* mballoc */
-+ struct list_head i_prealloc_list;
-+ spinlock_t i_prealloc_lock;
- };
-
- #endif /* _LINUX_EXT3_FS_I */
-Index: linux-2.6.16.46-0.14/include/linux/ext3_fs_sb.h
-===================================================================
---- linux-2.6.16.46-0.14.orig/include/linux/ext3_fs_sb.h
-+++ linux-2.6.16.46-0.14/include/linux/ext3_fs_sb.h
-@@ -21,8 +21,15 @@
- #include <linux/wait.h>
- #include <linux/blockgroup_lock.h>
- #include <linux/percpu_counter.h>
-+#include <linux/list.h>
- #endif
- #include <linux/rbtree.h>
-+#include <linux/proc_fs.h>
-+
-+struct ext3_buddy_group_blocks;
-+struct ext3_locality_group;
-+struct ext3_mb_history;
-+#define EXT3_BB_MAX_BLOCKS
-
- /*
- * third extended-fs super-block data in memory
-Index: linux-2.6.16.46-0.14/include/linux/ext3_fs.h
-===================================================================
---- linux-2.6.16.46-0.14.orig/include/linux/ext3_fs.h
-+++ linux-2.6.16.46-0.14/include/linux/ext3_fs.h
-@@ -407,6 +407,7 @@ struct ext3_inode {
- #define EXT3_MOUNT_IOPEN_NOPRIV 0x800000/* Make iopen world-readable */
- #define EXT3_MOUNT_EXTENTS 0x1000000/* Extents support */
- #define EXT3_MOUNT_EXTDEBUG 0x2000000/* Extents debug */
-+#define EXT3_MOUNT_MBALLOC 0x4000000/* Buddy allocation support */
-
- /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
- #ifndef clear_opt
-@@ -784,8 +785,9 @@ struct dir_private_info {
- extern int ext3_bg_has_super(struct super_block *sb, int group);
- extern unsigned long ext3_bg_num_gdb(struct super_block *sb, int group);
- extern int ext3_new_block (handle_t *, struct inode *, unsigned long, int *);
-+extern int ext3_new_block_old (handle_t *, struct inode *, unsigned long, int *);
- extern void ext3_free_blocks (handle_t *, struct inode *, unsigned long,
-- unsigned long);
-+ unsigned long, int);
- extern void ext3_free_blocks_sb (handle_t *, struct super_block *,
- unsigned long, unsigned long, int *);
- extern unsigned long ext3_count_free_blocks (struct super_block *);
-Index: linux-2.6.16.46-0.14/fs/ext3/super.c
-===================================================================
---- linux-2.6.16.46-0.14.orig/fs/ext3/super.c
-+++ linux-2.6.16.46-0.14/fs/ext3/super.c
-@@ -681,6 +681,7 @@ enum {
- Opt_iopen, Opt_noiopen, Opt_iopen_nopriv,
- Opt_grpquota,
- Opt_extents, Opt_noextents, Opt_extdebug,
-+ Opt_mballoc, Opt_nomballoc, Opt_stripe,
- };
-
- static match_table_t tokens = {
-@@ -740,6 +741,9 @@ static match_table_t tokens = {
- {Opt_extents, "extents"},
- {Opt_noextents, "noextents"},
- {Opt_extdebug, "extdebug"},
-+ {Opt_mballoc, "mballoc"},
-+ {Opt_nomballoc, "nomballoc"},
-+ {Opt_stripe, "stripe=%u"},
- {Opt_err, NULL},
- {Opt_resize, "resize"},
- };
-@@ -1077,6 +1081,19 @@ clear_qf_name:
- case Opt_extdebug:
- set_opt (sbi->s_mount_opt, EXTDEBUG);
- break;
-+ case Opt_mballoc:
-+ set_opt(sbi->s_mount_opt, MBALLOC);
-+ break;
-+ case Opt_nomballoc:
-+ clear_opt(sbi->s_mount_opt, MBALLOC);
-+ break;
-+ case Opt_stripe:
-+ if (match_int(&args[0], &option))
-+ return 0;
-+ if (option < 0)
-+ return 0;
-+ sbi->s_stripe = option;
-+ break;
- default:
- printk (KERN_ERR
- "EXT3-fs: Unrecognized mount option \"%s\" "
-@@ -1858,7 +1858,7 @@ static int ext3_fill_super (struct super
- ext3_count_dirs(sb));
-
- ext3_ext_init(sb);
--
-+ ext3_mb_init(sb, needs_recovery);
- lock_kernel();
- return 0;
-
-Index: linux-2.6.16.46-0.14/fs/ext3/extents.c
-===================================================================
---- linux-2.6.16.46-0.14.orig/fs/ext3/extents.c
-+++ linux-2.6.16.46-0.14/fs/ext3/extents.c
-@@ -819,7 +819,7 @@ cleanup:
- for (i = 0; i < depth; i++) {
- if (!ablocks[i])
- continue;
-- ext3_free_blocks(handle, tree->inode, ablocks[i], 1);
-+ ext3_free_blocks(handle, tree->inode, ablocks[i], 1, 1);
- }
- }
- kfree(ablocks);
-@@ -1629,7 +1629,7 @@ int ext3_ext_rm_idx(handle_t *handle, st
- path->p_idx->ei_leaf);
- bh = sb_find_get_block(tree->inode->i_sb, path->p_idx->ei_leaf);
- ext3_forget(handle, 1, tree->inode, bh, path->p_idx->ei_leaf);
-- ext3_free_blocks(handle, tree->inode, path->p_idx->ei_leaf, 1);
-+ ext3_free_blocks(handle, tree->inode, path->p_idx->ei_leaf, 1, 1);
- return err;
- }
-
-@@ -2128,10 +2128,12 @@ ext3_remove_blocks(struct ext3_extents_t
- int needed = ext3_remove_blocks_credits(tree, ex, from, to);
- handle_t *handle = ext3_journal_start(tree->inode, needed);
- struct buffer_head *bh;
-- int i;
-+ int i, metadata = 0;
-
- if (IS_ERR(handle))
- return PTR_ERR(handle);
-+ if (S_ISDIR(tree->inode->i_mode) || S_ISLNK(tree->inode->i_mode))
-+ metadata = 1;
- if (from >= ex->ee_block && to == ex->ee_block + ex->ee_len - 1) {
- /* tail removal */
- unsigned long num, start;
-@@ -2143,7 +2145,7 @@ ext3_remove_blocks(struct ext3_extents_t
- bh = sb_find_get_block(tree->inode->i_sb, start + i);
- ext3_forget(handle, 0, tree->inode, bh, start + i);
- }
-- ext3_free_blocks(handle, tree->inode, start, num);
-+ ext3_free_blocks(handle, tree->inode, start, num, metadata);
- } else if (from == ex->ee_block && to <= ex->ee_block + ex->ee_len - 1) {
- printk("strange request: removal %lu-%lu from %u:%u\n",
- from, to, ex->ee_block, ex->ee_len);
-@@ -2234,11 +2236,8 @@ int ext3_ext_get_block(handle_t *handle,
- struct ext3_extent *ex;
- int goal, newblock, err = 0, depth;
- struct ext3_extents_tree tree;
-- unsigned long next;
-- int allocated = 0;
--
-- /* until we have multiblock allocation */
-- max_blocks = 1;
-+ unsigned long allocated = 0;
-+ struct ext3_allocation_request ar;
-
- clear_buffer_new(bh_result);
- ext3_init_tree_desc(&tree, inode);
-@@ -2310,18 +2309,36 @@ int ext3_ext_get_block(handle_t *handle,
- goto out2;
- }
-
-+ /* find neighbour allocated blocks */
-+ ar.lleft = iblock;
-+ err = ext3_ext_search_left(&tree, path, &ar.lleft, &ar.pleft);
-+ if (err)
-+ goto out2;
-+ ar.lright = iblock;
-+ err = ext3_ext_search_right(&tree, path, &ar.lright, &ar.pright);
-+ if (err)
-+ goto out2;
-+
- /* find next allocated block so that we know how many
- * blocks we can allocate without ovelapping next extent */
-- EXT_ASSERT(iblock >= ex->ee_block + ex->ee_len);
-- next = ext3_ext_next_allocated_block(path);
-- EXT_ASSERT(next > iblock);
-- allocated = next - iblock;
-+ EXT_ASSERT(ar.pright == 0 || ar.lright > iblock);
-+ if (ar.pright == 0)
-+ allocated = EXT_MAX_BLOCK - iblock;
-+ else
-+ allocated = ar.lright - iblock;
- if (allocated > max_blocks)
- allocated = max_blocks;
-
- /* allocate new block */
-- goal = ext3_ext_find_goal(inode, path, iblock);
-- newblock = ext3_new_block(handle, inode, goal, &err);
-+ ar.inode = inode;
-+ ar.goal = ext3_ext_find_goal(inode, path, iblock);
-+ ar.logical = iblock;
-+ ar.len = allocated;
-+ if (S_ISREG(inode->i_mode))
-+ ar.flags = EXT3_MB_HINT_DATA;
-+ else
-+ ar.flags = 0;
-+ newblock = ext3_mb_new_blocks(handle, &ar, &err);
- if (!newblock)
- goto out2;
- ext_debug(&tree, "allocate new block: goal %d, found %d\n",
-@@ -2331,11 +2348,14 @@ int ext3_ext_get_block(handle_t *handle,
- newex.ee_block = iblock;
- newex.ee_start = newblock;
- newex.ee_start_hi = 0;
-- newex.ee_len = 1;
-+ newex.ee_len = ar.len;
- err = ext3_ext_insert_extent(handle, &tree, path, &newex);
- if (err) {
- /* free data blocks we just allocated */
-- ext3_free_blocks(handle, inode, newex.ee_start, newex.ee_len);
-+ /* not a good idea to call discard here directly,
-+ * but otherwise we'd need to call it every free() */
-+ ext3_mb_discard_inode_preallocations(inode);
-+ ext3_free_blocks(handle, inode, newex.ee_start, newex.ee_len, 0);
- goto out2;
- }
-
-@@ -2344,6 +2364,7 @@ int ext3_ext_get_block(handle_t *handle,
-
- /* previous routine could use block we allocated */
- newblock = newex.ee_start;
-+ allocated = newex.ee_len;
- set_buffer_new(bh_result);
-
- ext3_ext_put_in_cache(&tree, newex.ee_block, newex.ee_len,
-@@ -2396,6 +2417,9 @@ void ext3_ext_truncate(struct inode * in
- down(&EXT3_I(inode)->truncate_sem);
- ext3_ext_invalidate_cache(&tree);
-
-+ /* it's important to discard preallocations under truncate_sem */
-+ ext3_mb_discard_inode_preallocations(inode);
-+
- /*
- * TODO: optimization is possible here
- * probably we need not scaning at all,
-Index: linux-2.6.18.8/fs/ext3/Makefile
-===================================================================
---- linux-2.6.18.8.orig/fs/ext3/Makefile
-+++ linux-2.6.18.8/fs/ext3/Makefile
-@@ -5,7 +5,7 @@
- obj-$(CONFIG_EXT3_FS) += ext3.o
-
- ext3-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o iopen.o \
-- ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o
-+ ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o mballoc.o
-
- ext3-$(CONFIG_EXT3_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o
- ext3-$(CONFIG_EXT3_FS_POSIX_ACL) += acl.o
-Index: linux-2.6.16.46-0.14/fs/ext3/xattr.c
-===================================================================
---- linux-2.6.16.46-0.14.orig/fs/ext3/xattr.c
-+++ linux-2.6.16.46-0.14/fs/ext3/xattr.c
-@@ -484,7 +484,7 @@ ext3_xattr_release_block(handle_t *handl
- ea_bdebug(bh, "refcount now=0; freeing");
- if (ce)
- mb_cache_entry_free(ce);
-- ext3_free_blocks(handle, inode, bh->b_blocknr, 1);
-+ ext3_free_blocks(handle, inode, bh->b_blocknr, 1, 1);
- get_bh(bh);
- ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
- } else {
-@@ -804,7 +804,7 @@ inserted:
- new_bh = sb_getblk(sb, block);
- if (!new_bh) {
- getblk_failed:
-- ext3_free_blocks(handle, inode, block, 1);
-+ ext3_free_blocks(handle, inode, block, 1, 1);
- error = -EIO;
- goto cleanup;
- }
-Index: linux-2.6.16.46-0.14/fs/ext3/balloc.c
-===================================================================
---- linux-2.6.16.46-0.14.orig/fs/ext3/balloc.c
-+++ linux-2.6.16.46-0.14/fs/ext3/balloc.c
-@@ -80,7 +80,7 @@ struct ext3_group_desc * ext3_get_group_
- *
- * Return buffer_head on success or NULL in case of failure.
- */
--static struct buffer_head *
-+struct buffer_head *
- read_block_bitmap(struct super_block *sb, unsigned int block_group)
- {
- struct ext3_group_desc * desc;
-@@ -296,6 +296,8 @@ void ext3_discard_reservation(struct ino
- struct ext3_reserve_window_node *rsv;
- spinlock_t *rsv_lock = &EXT3_SB(inode->i_sb)->s_rsv_window_lock;
-
-+ ext3_mb_discard_inode_preallocations(inode);
-+
- if (!block_i)
- return;
-
-@@ -491,21 +493,25 @@ error_return:
- return;
- }
-
--/* Free given blocks, update quota and i_blocks field */
--void ext3_free_blocks(handle_t *handle, struct inode *inode,
-- unsigned long block, unsigned long count)
-+void ext3_free_blocks(handle_t *handle, struct inode * inode,
-+ unsigned long block, unsigned long count, int metadata)
- {
-- struct super_block * sb;
-- int dquot_freed_blocks;
-+ struct super_block *sb;
-+ int freed;
-+
-+ /* this isn't the right place to decide whether block is metadata
-+ * inode.c/extents.c knows better, but for safety ... */
-+ if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode) ||
-+ ext3_should_journal_data(inode))
-+ metadata = 1;
-
- sb = inode->i_sb;
-- if (!sb) {
-- printk ("ext3_free_blocks: nonexistent device");
-- return;
-- }
-- ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
-- if (dquot_freed_blocks)
-- DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
-+ if (!test_opt(sb, MBALLOC) || !EXT3_SB(sb)->s_group_info)
-+ ext3_free_blocks_sb(handle, sb, block, count, &freed);
-+ else
-+ ext3_mb_free_blocks(handle, inode, block, count, metadata, &freed);
-+ if (freed)
-+ DQUOT_FREE_BLOCK(inode, freed);
- return;
- }
-
-@@ -1154,7 +1160,7 @@ int ext3_should_retry_alloc(struct super
- * bitmap, and then for any free bit if that fails.
- * This function also updates quota and i_blocks field.
- */
--int ext3_new_block(handle_t *handle, struct inode *inode,
-+int ext3_new_block_old(handle_t *handle, struct inode *inode,
- unsigned long goal, int *errp)
- {
- struct buffer_head *bitmap_bh = NULL;
-Index: linux-2.6.16.46-0.14/fs/ext3/inode.c
-===================================================================
---- linux-2.6.16.46-0.14.orig/fs/ext3/inode.c
-+++ linux-2.6.16.46-0.14/fs/ext3/inode.c
-@@ -569,7 +569,7 @@ static int ext3_alloc_branch(handle_t *h
- ext3_journal_forget(handle, branch[i].bh);
- }
- for (i = 0; i < keys; i++)
-- ext3_free_blocks(handle, inode, le32_to_cpu(branch[i].key), 1);
-+ ext3_free_blocks(handle, inode, le32_to_cpu(branch[i].key), 1, 0);
- return err;
- }
-
-@@ -1866,7 +1866,7 @@ ext3_clear_blocks(handle_t *handle, stru
- }
- }
-
-- ext3_free_blocks(handle, inode, block_to_free, count);
-+ ext3_free_blocks(handle, inode, block_to_free, count, 0);
- }
-
- /**
-@@ -2039,7 +2039,7 @@ static void ext3_free_branches(handle_t
- ext3_journal_test_restart(handle, inode);
- }
-
-- ext3_free_blocks(handle, inode, nr, 1);
-+ ext3_free_blocks(handle, inode, nr, 1, 1);
-
- if (parent_bh) {
- /*
git://git.whamcloud.com / fs / lustre-release.git / blobdiff