1 files changed, 26 insertions, 18 deletions

diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index ad4ac607cf57..d2acd1a651f3 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -25,6 +25,7 @@
 #include <linux/slab.h>
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
+#include <linux/random.h>
 #include <linux/crc32.h>
 #include "nilfs.h"
 #include "segment.h"
@@ -75,7 +76,10 @@ struct the_nilfs *alloc_nilfs(struct block_device *bdev)
         nilfs->ns_bdev = bdev;
         atomic_set(&nilfs->ns_ndirtyblks, 0);
         init_rwsem(&nilfs->ns_sem);
+        INIT_LIST_HEAD(&nilfs->ns_dirty_files);
         INIT_LIST_HEAD(&nilfs->ns_gc_inodes);
+        spin_lock_init(&nilfs->ns_inode_lock);
+        spin_lock_init(&nilfs->ns_next_gen_lock);
         spin_lock_init(&nilfs->ns_last_segment_lock);
         nilfs->ns_cptree = RB_ROOT;
         spin_lock_init(&nilfs->ns_cptree_lock);
@@ -197,16 +201,16 @@ static int nilfs_store_log_cursor(struct the_nilfs *nilfs,
 /**
  * load_nilfs - load and recover the nilfs
  * @nilfs: the_nilfs structure to be released
- * @sbi: nilfs_sb_info used to recover past segment
+ * @sb: super block isntance used to recover past segment
  *
  * load_nilfs() searches and load the latest super root,
  * attaches the last segment, and does recovery if needed.
  * The caller must call this exclusively for simultaneous mounts.
  */
-int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
+int load_nilfs(struct the_nilfs *nilfs, struct super_block *sb)
 {
         struct nilfs_recovery_info ri;
-        unsigned int s_flags = sbi->s_super->s_flags;
+        unsigned int s_flags = sb->s_flags;
         int really_read_only = bdev_read_only(nilfs->ns_bdev);
         int valid_fs = nilfs_valid_fs(nilfs);
         int err;
@@ -271,7 +275,7 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
                         goto scan_error;
         }
 
-        err = nilfs_load_super_root(nilfs, sbi->s_super, ri.ri_super_root);
+        err = nilfs_load_super_root(nilfs, sb, ri.ri_super_root);
         if (unlikely(err)) {
                 printk(KERN_ERR "NILFS: error loading super root.\n");
                 goto failed;
@@ -283,7 +287,7 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
         if (s_flags & MS_RDONLY) {
                 __u64 features;
 
-                if (nilfs_test_opt(sbi, NORECOVERY)) {
+                if (nilfs_test_opt(nilfs, NORECOVERY)) {
                         printk(KERN_INFO "NILFS: norecovery option specified. "
                                "skipping roll-forward recovery\n");
                         goto skip_recovery;
@@ -304,21 +308,21 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
                         err = -EROFS;
                         goto failed_unload;
                 }
-                sbi->s_super->s_flags &= ~MS_RDONLY;
-        } else if (nilfs_test_opt(sbi, NORECOVERY)) {
+                sb->s_flags &= ~MS_RDONLY;
+        } else if (nilfs_test_opt(nilfs, NORECOVERY)) {
                 printk(KERN_ERR "NILFS: recovery cancelled because norecovery "
                        "option was specified for a read/write mount\n");
                 err = -EINVAL;
                 goto failed_unload;
         }
 
-        err = nilfs_salvage_orphan_logs(nilfs, sbi, &ri);
+        err = nilfs_salvage_orphan_logs(nilfs, sb, &ri);
         if (err)
                 goto failed_unload;
 
         down_write(&nilfs->ns_sem);
         nilfs->ns_mount_state |= NILFS_VALID_FS; /* set "clean" flag */
-        err = nilfs_cleanup_super(sbi);
+        err = nilfs_cleanup_super(sb);
         up_write(&nilfs->ns_sem);
 
         if (err) {
@@ -330,7 +334,7 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
 
  skip_recovery:
         nilfs_clear_recovery_info(&ri);
-        sbi->s_super->s_flags = s_flags;
+        sb->s_flags = s_flags;
         return 0;
 
  scan_error:
@@ -344,7 +348,7 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
 
  failed:
         nilfs_clear_recovery_info(&ri);
-        sbi->s_super->s_flags = s_flags;
+        sb->s_flags = s_flags;
         return err;
 }
 
@@ -475,10 +479,13 @@ static int nilfs_load_super_block(struct the_nilfs *nilfs,
                         return -EIO;
                 }
                 printk(KERN_WARNING
-                       "NILFS warning: unable to read primary superblock\n");
-        } else if (!sbp[1])
+                       "NILFS warning: unable to read primary superblock "
+                       "(blocksize = %d)\n", blocksize);
+        } else if (!sbp[1]) {
                 printk(KERN_WARNING
-                       "NILFS warning: unable to read secondary superblock\n");
+                       "NILFS warning: unable to read secondary superblock "
+                       "(blocksize = %d)\n", blocksize);
+        }
 
         /*
          * Compare two super blocks and set 1 in swp if the secondary
@@ -505,7 +512,7 @@ static int nilfs_load_super_block(struct the_nilfs *nilfs,
 
         if (!valid[!swp])
                 printk(KERN_WARNING "NILFS warning: broken superblock. "
-                       "using spare superblock.\n");
+                       "using spare superblock (blocksize = %d).\n", blocksize);
         if (swp)
                 nilfs_swap_super_block(nilfs);
 
@@ -519,7 +526,6 @@ static int nilfs_load_super_block(struct the_nilfs *nilfs,
 /**
  * init_nilfs - initialize a NILFS instance.
  * @nilfs: the_nilfs structure
- * @sbi: nilfs_sb_info
  * @sb: super block
  * @data: mount options
  *
@@ -530,9 +536,8 @@ static int nilfs_load_super_block(struct the_nilfs *nilfs,
  * Return Value: On success, 0 is returned. On error, a negative error
  * code is returned.
  */
-int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
+int init_nilfs(struct the_nilfs *nilfs, struct super_block *sb, char *data)
 {
-        struct super_block *sb = sbi->s_super;
         struct nilfs_super_block *sbp;
         int blocksize;
         int err;
@@ -588,6 +593,9 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
         nilfs->ns_blocksize_bits = sb->s_blocksize_bits;
         nilfs->ns_blocksize = blocksize;
 
+        get_random_bytes(&nilfs->ns_next_generation,
+                         sizeof(nilfs->ns_next_generation));
+
         err = nilfs_store_disk_layout(nilfs, sbp);
         if (err)
                 goto failed_sbh;