-Index: linux-2.6.9-full/include/linux/ext3_fs.h
+Index: linux-2.6.5-7.311/include/linux/ext3_fs.h
===================================================================
---- linux-2.6.9-full.orig/include/linux/ext3_fs.h 2007-06-08 23:44:08.000000000 +0400
-+++ linux-2.6.9-full/include/linux/ext3_fs.h 2007-10-17 22:25:01.000000000 +0400
+--- linux-2.6.5-7.311.orig/include/linux/ext3_fs.h
++++ linux-2.6.5-7.311/include/linux/ext3_fs.h
@@ -57,6 +57,30 @@ struct statfs;
#define ext3_debug(f, a...) do {} while (0)
#endif
/*
* Special inodes numbers
*/
-@@ -387,6 +411,14 @@ struct ext3_inode {
+@@ -361,6 +385,14 @@ struct ext3_inode {
#define ext3_find_first_zero_bit ext2_find_first_zero_bit
#define ext3_find_next_zero_bit ext2_find_next_zero_bit
/*
* Maximal mount counts between two filesystem checks
*/
-@@ -763,6 +795,20 @@ extern unsigned long ext3_count_dirs (st
+@@ -735,6 +767,20 @@ extern unsigned long ext3_count_dirs (st
extern void ext3_check_inodes_bitmap (struct super_block *);
extern unsigned long ext3_count_free (struct buffer_head *, unsigned);
+extern void ext3_mb_release_blocks(struct super_block *, int);
+extern void ext3_mb_release_blocks(struct super_block *, int);
+extern void ext3_mb_discard_inode_preallocations(struct inode *);
-+extern int __init init_ext3_proc(void);
-+extern void exit_ext3_proc(void);
++extern int __init init_ext3_mb_proc(void);
++extern void exit_ext3_mb_proc(void);
+extern void ext3_mb_free_blocks(handle_t *, struct inode *, unsigned long, unsigned long, int, int *);
+
/* inode.c */
extern int ext3_block_truncate_page(handle_t *, struct page *,
-Index: linux-2.6.9-full/include/linux/ext3_fs_sb.h
+@@ -769,6 +815,10 @@ extern int ext3_htree_fill_tree(struct f
+ __u32 start_minor_hash, __u32 *next_hash);
+
+ /* super.c */
++extern struct proc_dir_entry *proc_root_ext3;
++extern int __init init_ext3_proc(void);
++extern void exit_ext3_proc(void);
++
+ extern void ext3_error (struct super_block *, const char *, const char *, ...)
+ __attribute__ ((format (printf, 3, 4)));
+ extern void __ext3_std_error (struct super_block *, const char *, int);
+Index: linux-2.6.5-7.311/include/linux/ext3_fs_sb.h
===================================================================
---- linux-2.6.9-full.orig/include/linux/ext3_fs_sb.h 2007-06-08 23:44:07.000000000 +0400
-+++ linux-2.6.9-full/include/linux/ext3_fs_sb.h 2007-10-17 22:25:01.000000000 +0400
-@@ -81,6 +81,61 @@ struct ext3_sb_info {
- char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */
- int s_jquota_fmt; /* Format of quota to use */
+--- linux-2.6.5-7.311.orig/include/linux/ext3_fs_sb.h
++++ linux-2.6.5-7.311/include/linux/ext3_fs_sb.h
+@@ -78,6 +78,61 @@ struct ext3_sb_info {
+ struct timer_list turn_ro_timer; /* For turning read-only (crash simulation) */
+ wait_queue_head_t ro_wait_queue; /* For people waiting for the fs to go read-only */
#endif
+
+ /* for buddy allocator */
+ int s_mb_history_cur;
+ int s_mb_history_max;
+ int s_mb_history_num;
-+ struct proc_dir_entry *s_mb_proc;
++ struct proc_dir_entry *s_dev_proc;
+ spinlock_t s_mb_history_lock;
+ int s_mb_history_filter;
+
+ [(group) & (EXT3_DESC_PER_BLOCK(sb) - 1)]
+
#endif /* _LINUX_EXT3_FS_SB */
-Index: linux-2.6.9-full/fs/ext3/super.c
+Index: linux-2.6.5-7.311/fs/ext3/super.c
===================================================================
---- linux-2.6.9-full.orig/fs/ext3/super.c 2007-06-08 23:44:08.000000000 +0400
-+++ linux-2.6.9-full/fs/ext3/super.c 2007-10-17 22:26:27.000000000 +0400
-@@ -394,6 +394,7 @@ void ext3_put_super (struct super_block
+--- linux-2.6.5-7.311.orig/fs/ext3/super.c
++++ linux-2.6.5-7.311/fs/ext3/super.c
+@@ -389,6 +389,7 @@ void ext3_put_super (struct super_block
struct ext3_super_block *es = sbi->s_es;
int i;
ext3_ext_release(sb);
ext3_xattr_put_super(sb);
journal_destroy(sbi->s_journal);
-@@ -463,6 +464,8 @@ static struct inode *ext3_alloc_inode(st
+@@ -428,6 +429,8 @@ void ext3_put_super (struct super_block
+ invalidate_bdev(sbi->journal_bdev, 0);
+ ext3_blkdev_remove(sbi);
+ }
++ remove_proc_entry(sb->s_id, proc_root_ext3);
++ sbi->s_dev_proc = NULL;
+ sb->s_fs_info = NULL;
+ kfree(sbi);
+ return;
+@@ -453,6 +456,8 @@ static struct inode *ext3_alloc_inode(st
ei->vfs_inode.i_version = 1;
-
+
memset(&ei->i_cached_extent, 0, sizeof(ei->i_cached_extent));
+ INIT_LIST_HEAD(&ei->i_prealloc_list);
+ spin_lock_init(&ei->i_prealloc_lock);
return &ei->vfs_inode;
}
-@@ -2576,7 +2579,13 @@ static struct file_system_type ext3_fs_t
+@@ -1151,6 +1156,13 @@ static int ext3_fill_super (struct super
+ sbi->s_mount_opt = 0;
+ sbi->s_resuid = EXT3_DEF_RESUID;
+ sbi->s_resgid = EXT3_DEF_RESGID;
++ sbi->s_dev_proc = proc_mkdir(sb->s_id, proc_root_ext3);
++ if (sbi->s_dev_proc == NULL) {
++ printk(KERN_ERR "EXT3-fs: Unable to create %s\n", sb->s_id);
++ sb->s_fs_info = NULL;
++ kfree(sbi);
++ return -ENOMEM;
++ }
+
+ blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE);
+ if (!blocksize) {
+@@ -1526,6 +1538,8 @@ failed_mount:
+ ext3_blkdev_remove(sbi);
+ brelse(bh);
+ out_fail:
++ remove_proc_entry(sb->s_id, proc_root_ext3);
++ sbi->s_dev_proc = NULL;
+ sb->s_fs_info = NULL;
+ kfree(sbi);
+ return -EINVAL;
+@@ -2158,9 +2172,46 @@ static struct file_system_type ext3_fs_t
+ .fs_flags = FS_REQUIRES_DEV,
+ };
++#define EXT3_ROOT "ext3"
++struct proc_dir_entry *proc_root_ext3;
++
++int __init init_ext3_proc(void)
++{
++ int ret;
++
++ if ((ret = init_ext3_mb_proc()))
++ goto out;
++
++ proc_root_ext3 = proc_mkdir(EXT3_ROOT, proc_root_fs);
++ if (proc_root_ext3 == NULL) {
++ printk(KERN_ERR "EXT3-fs: Unable to create %s\n", EXT3_ROOT);
++ ret = -ENOMEM;
++ goto out_mb_proc;
++ }
++
++ return 0;
++
++out_mb_proc:
++ exit_ext3_mb_proc();
++out:
++ return ret;
++}
++
++void exit_ext3_proc(void)
++{
++ exit_ext3_mb_proc();
++ remove_proc_entry(EXT3_ROOT, proc_root_fs);
++}
++
static int __init init_ext3_fs(void)
{
- int err = init_ext3_xattr();
if (err)
return err;
err = init_inodecache();
-@@ -2598,6 +2607,7 @@ static void __exit exit_ext3_fs(void)
+@@ -2189,6 +2240,7 @@ static void __exit exit_ext3_fs(void)
unregister_filesystem(&ext3_fs_type);
destroy_inodecache();
exit_ext3_xattr();
+ exit_ext3_proc();
}
- int ext3_prep_san_write(struct inode *inode, long *blocks,
-Index: linux-2.6.9-full/fs/ext3/mballoc.c
+ int ext3_map_inode_page(struct inode *inode, struct page *page,
+Index: linux-2.6.5-7.311/fs/ext3/mballoc.c
===================================================================
---- linux-2.6.9-full.orig/fs/ext3/mballoc.c 2007-10-17 21:59:51.072534980 +0400
-+++ linux-2.6.9-full/fs/ext3/mballoc.c 2007-10-17 23:09:22.000000000 +0400
-@@ -0,0 +1,4404 @@
+--- /dev/null
++++ linux-2.6.5-7.311/fs/ext3/mballoc.c
+@@ -0,0 +1,4385 @@
+/*
-+ * Copyright (c) 2003-2006, Cluster File Systems, Inc, info@clusterfs.com
++ * Copyright 2008 Sun Microsystems, Inc.
+ * Written by Alex Tomas <alex@clusterfs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+#define EXT3_BB_MAX_BLOCKS 30
+
+struct ext3_free_metadata {
-+ unsigned short group;
++ unsigned group;
+ unsigned short num;
+ unsigned short blocks[EXT3_BB_MAX_BLOCKS];
+ struct list_head list;
+ void *bd_bitmap;
+ struct ext3_group_info *bd_info;
+ struct super_block *bd_sb;
-+ __u16 bd_blkbits;
-+ __u16 bd_group;
++ unsigned bd_group;
++ unsigned bd_blkbits;
+};
+#define EXT3_MB_BITMAP(e3b) ((e3b)->bd_bitmap)
+#define EXT3_MB_BUDDY(e3b) ((e3b)->bd_buddy)
+
+#define in_range(b, first, len) ((b) >= (first) && (b) <= (first) + (len) - 1)
+
-+static struct proc_dir_entry *proc_root_ext3;
-+
+int ext3_create (struct inode *, struct dentry *, int, struct nameidata *);
+struct buffer_head * read_block_bitmap(struct super_block *, unsigned int);
+unsigned long ext3_new_blocks_old(handle_t *handle, struct inode *inode,
+ fragments++;
+ first = i;
+ i = ext2_find_next_le_bit(bitmap, max, i);
++ if (i > max)
++ i = max;
+ len = i - first;
+ free += len;
+ if (len > 1)
+{
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
+
-+ remove_proc_entry("mb_groups", sbi->s_mb_proc);
-+ remove_proc_entry("mb_history", sbi->s_mb_proc);
++ remove_proc_entry("mb_groups", sbi->s_dev_proc);
++ remove_proc_entry("mb_history", sbi->s_dev_proc);
+
+ if (sbi->s_mb_history)
+ kfree(sbi->s_mb_history);
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
+ int i;
+
-+ if (sbi->s_mb_proc != NULL) {
++ if (sbi->s_dev_proc != NULL) {
+ struct proc_dir_entry *p;
-+ p = create_proc_entry("mb_history", S_IRUGO, sbi->s_mb_proc);
++ p = create_proc_entry("mb_history", S_IRUGO, sbi->s_dev_proc);
+ if (p) {
+ p->proc_fops = &ext3_mb_seq_history_fops;
+ p->data = sb;
+ }
-+ p = create_proc_entry("mb_groups", S_IRUGO, sbi->s_mb_proc);
++ p = create_proc_entry("mb_groups", S_IRUGO, sbi->s_dev_proc);
+ if (p) {
+ p->proc_fops = &ext3_mb_seq_groups_fops;
+ p->data = sb;
+ sbi->s_mb_order2_reqs = MB_DEFAULT_ORDER2_REQS;
+ sbi->s_mb_history_filter = EXT3_MB_HISTORY_DEFAULT;
+
-+ i = sizeof(struct ext3_locality_group) * NR_CPUS;
++ i = sizeof(struct ext3_locality_group) * num_possible_cpus();
+ sbi->s_locality_groups = kmalloc(i, GFP_NOFS);
+ if (sbi->s_locality_groups == NULL) {
+ clear_opt(sbi->s_mount_opt, MBALLOC);
+ kfree(sbi->s_mb_maxs);
+ return -ENOMEM;
+ }
-+ for (i = 0; i < NR_CPUS; i++) {
++ for (i = 0; i < num_possible_cpus(); i++) {
+ struct ext3_locality_group *lg;
+ lg = &sbi->s_locality_groups[i];
+ sema_init(&lg->lg_sem, 1);
+ mb_debug("freed %u blocks in %u structures\n", count, count2);
+}
+
-+#define EXT3_ROOT "ext3"
+#define EXT3_MB_STATS_NAME "stats"
+#define EXT3_MB_MAX_TO_SCAN_NAME "max_to_scan"
+#define EXT3_MB_MIN_TO_SCAN_NAME "min_to_scan"
+
+int ext3_mb_init_per_dev_proc(struct super_block *sb)
+{
-+ mode_t mode = S_IFREG | S_IRUGO | S_IWUSR;
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
++ mode_t mode = S_IFREG | S_IRUGO | S_IWUSR;
+ struct proc_dir_entry *proc;
-+ char devname[64], *name;
-+
-+ snprintf(devname, sizeof(devname) - 1, "%s",
-+ bdevname(sb->s_bdev, devname));
-+ sbi->s_mb_proc = proc_mkdir(devname, proc_root_ext3);
++ char *name;
+
+ name = EXT3_MB_STATS_NAME;
-+ proc = create_proc_entry(name, mode, sbi->s_mb_proc);
++ proc = create_proc_entry(name, mode, sbi->s_dev_proc);
+ if (proc == NULL)
+ goto err_out;
+ proc->data = sbi;
+ proc->write_proc = ext3_mb_stats_write;
+
+ name = EXT3_MB_MAX_TO_SCAN_NAME;
-+ proc = create_proc_entry(name, mode, sbi->s_mb_proc);
++ proc = create_proc_entry(name, mode, sbi->s_dev_proc);
+ if (proc == NULL)
+ goto err_out;
+ proc->data = sbi;
+ proc->write_proc = ext3_mb_max_to_scan_write;
+
+ name = EXT3_MB_MIN_TO_SCAN_NAME;
-+ proc = create_proc_entry(name, mode, sbi->s_mb_proc);
++ proc = create_proc_entry(name, mode, sbi->s_dev_proc);
+ if (proc == NULL)
+ goto err_out;
+ proc->data = sbi;
+ proc->write_proc = ext3_mb_min_to_scan_write;
+
+ name = EXT3_MB_ORDER2_REQ;
-+ proc = create_proc_entry(name, mode, sbi->s_mb_proc);
++ proc = create_proc_entry(name, mode, sbi->s_dev_proc);
+ if (proc == NULL)
+ goto err_out;
+ proc->data = sbi;
+ proc->write_proc = ext3_mb_order2_req_write;
+
+ name = EXT3_MB_STREAM_REQ;
-+ proc = create_proc_entry(name, mode, sbi->s_mb_proc);
++ proc = create_proc_entry(name, mode, sbi->s_dev_proc);
+ if (proc == NULL)
+ goto err_out;
+ proc->data = sbi;
+
+err_out:
+ printk(KERN_ERR "EXT3-fs: Unable to create %s\n", name);
-+ remove_proc_entry(EXT3_MB_STREAM_REQ, sbi->s_mb_proc);
-+ remove_proc_entry(EXT3_MB_ORDER2_REQ, sbi->s_mb_proc);
-+ remove_proc_entry(EXT3_MB_MIN_TO_SCAN_NAME, sbi->s_mb_proc);
-+ remove_proc_entry(EXT3_MB_MAX_TO_SCAN_NAME, sbi->s_mb_proc);
-+ remove_proc_entry(EXT3_MB_STATS_NAME, sbi->s_mb_proc);
-+ remove_proc_entry(devname, proc_root_ext3);
-+ sbi->s_mb_proc = NULL;
++ remove_proc_entry(EXT3_MB_STREAM_REQ, sbi->s_dev_proc);
++ remove_proc_entry(EXT3_MB_ORDER2_REQ, sbi->s_dev_proc);
++ remove_proc_entry(EXT3_MB_MIN_TO_SCAN_NAME, sbi->s_dev_proc);
++ remove_proc_entry(EXT3_MB_MAX_TO_SCAN_NAME, sbi->s_dev_proc);
++ remove_proc_entry(EXT3_MB_STATS_NAME, sbi->s_dev_proc);
+
+ return -ENOMEM;
+}
+int ext3_mb_destroy_per_dev_proc(struct super_block *sb)
+{
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
-+ char devname[64];
+
-+ if (sbi->s_mb_proc == NULL)
++ if (sbi->s_dev_proc == NULL)
+ return -EINVAL;
+
-+ snprintf(devname, sizeof(devname) - 1, "%s",
-+ bdevname(sb->s_bdev, devname));
-+ remove_proc_entry(EXT3_MB_STREAM_REQ, sbi->s_mb_proc);
-+ remove_proc_entry(EXT3_MB_ORDER2_REQ, sbi->s_mb_proc);
-+ remove_proc_entry(EXT3_MB_MIN_TO_SCAN_NAME, sbi->s_mb_proc);
-+ remove_proc_entry(EXT3_MB_MAX_TO_SCAN_NAME, sbi->s_mb_proc);
-+ remove_proc_entry(EXT3_MB_STATS_NAME, sbi->s_mb_proc);
-+ remove_proc_entry(devname, proc_root_ext3);
++ remove_proc_entry(EXT3_MB_STREAM_REQ, sbi->s_dev_proc);
++ remove_proc_entry(EXT3_MB_ORDER2_REQ, sbi->s_dev_proc);
++ remove_proc_entry(EXT3_MB_MIN_TO_SCAN_NAME, sbi->s_dev_proc);
++ remove_proc_entry(EXT3_MB_MAX_TO_SCAN_NAME, sbi->s_dev_proc);
++ remove_proc_entry(EXT3_MB_STATS_NAME, sbi->s_dev_proc);
+
+ return 0;
+}
+
-+int __init init_ext3_proc(void)
++int __init init_ext3_mb_proc(void)
+{
+ ext3_pspace_cachep =
+ kmem_cache_create("ext3_prealloc_space",
+ if (ext3_pspace_cachep == NULL)
+ return -ENOMEM;
+
-+ proc_root_ext3 = proc_mkdir(EXT3_ROOT, proc_root_fs);
-+ if (proc_root_ext3 == NULL)
-+ printk(KERN_ERR "EXT3-fs: Unable to create %s\n", EXT3_ROOT);
-+
+ return 0;
+}
+
-+void exit_ext3_proc(void)
++void exit_ext3_mb_proc(void)
+{
+ /* XXX: synchronize_rcu(); */
+ kmem_cache_destroy(ext3_pspace_cachep);
-+ remove_proc_entry(EXT3_ROOT, proc_root_fs);
+}
+
+
+
+ /* in this short window concurrent discard can set pa_deleted */
+ spin_lock(&pa->pa_lock);
-+ if (pa->pa_deleted == 0) {
++ if (pa->pa_deleted == 1) {
+ spin_unlock(&pa->pa_lock);
+ return;
+ }
+ spin_lock(&pa->pa_lock);
+ if (atomic_read(&pa->pa_count)) {
+ spin_unlock(&pa->pa_lock);
-+ printk("uh! busy PA\n");
-+ dump_stack();
+ busy = 1;
+ continue;
+ }
+ * use preallocation while we're discarding it */
+ spin_unlock(&pa->pa_lock);
+ spin_unlock(&ei->i_prealloc_lock);
-+ printk("uh-oh! used pa while discarding\n");
-+ dump_stack();
+ current->state = TASK_UNINTERRUPTIBLE;
+ schedule_timeout(HZ);
+ goto repeat;
+ * add a flag to force wait only in case
+ * of ->clear_inode(), but not in case of
+ * regular truncate */
-+ printk("uh-oh! some one just deleted it\n");
-+ dump_stack();
+ current->state = TASK_UNINTERRUPTIBLE;
+ schedule_timeout(HZ);
+ goto repeat;
+ ext3_std_error(sb, err);
+ return;
+}
++
++EXPORT_SYMBOL(ext3_free_blocks);
++EXPORT_SYMBOL(ext3_mb_discard_inode_preallocations);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff