nilfs2: move recovery completion into load_nilfs function
Although mount recovery of nilfs is integrated in load_nilfs()
procedure, the completion of recovery was isolated from the procedure
and performed at the end of the fill_super routine.
This was somewhat confusing since the recovery is needed for the nilfs
object, not for a super block instance.
To resolve the inconsistency, this will integrate the recovery
completion into load_nilfs().
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 4d4d35c..aea2b58 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -262,28 +262,27 @@
unsigned int s_flags = sbi->s_super->s_flags;
int really_read_only = bdev_read_only(nilfs->ns_bdev);
unsigned valid_fs;
- int err = 0;
+ int err;
- nilfs_init_recovery_info(&ri);
+ if (nilfs_loaded(nilfs))
+ return 0;
down_write(&nilfs->ns_sem);
valid_fs = (nilfs->ns_mount_state & NILFS_VALID_FS);
up_write(&nilfs->ns_sem);
- if (!valid_fs && (s_flags & MS_RDONLY)) {
- printk(KERN_INFO "NILFS: INFO: recovery "
- "required for readonly filesystem.\n");
- if (really_read_only) {
- printk(KERN_ERR "NILFS: write access "
- "unavailable, cannot proceed.\n");
- err = -EROFS;
- goto failed;
+ if (!valid_fs) {
+ printk(KERN_WARNING "NILFS warning: mounting unchecked fs\n");
+ if (s_flags & MS_RDONLY) {
+ printk(KERN_INFO "NILFS: INFO: recovery "
+ "required for readonly filesystem.\n");
+ printk(KERN_INFO "NILFS: write access will "
+ "be enabled during recovery.\n");
}
- printk(KERN_INFO "NILFS: write access will "
- "be enabled during recovery.\n");
- sbi->s_super->s_flags &= ~MS_RDONLY;
}
+ nilfs_init_recovery_info(&ri);
+
err = nilfs_search_super_root(nilfs, sbi, &ri);
if (unlikely(err)) {
printk(KERN_ERR "NILFS: error searching super root.\n");
@@ -296,19 +295,46 @@
goto failed;
}
- if (!valid_fs) {
- err = nilfs_recover_logical_segments(nilfs, sbi, &ri);
- if (unlikely(err)) {
- nilfs_mdt_destroy(nilfs->ns_cpfile);
- nilfs_mdt_destroy(nilfs->ns_sufile);
- nilfs_mdt_destroy(nilfs->ns_dat);
- goto failed;
+ if (valid_fs)
+ goto skip_recovery;
+
+ if (s_flags & MS_RDONLY) {
+ if (really_read_only) {
+ printk(KERN_ERR "NILFS: write access "
+ "unavailable, cannot proceed.\n");
+ err = -EROFS;
+ goto failed_unload;
}
- if (ri.ri_need_recovery == NILFS_RECOVERY_SR_UPDATED)
- sbi->s_super->s_dirt = 1;
+ sbi->s_super->s_flags &= ~MS_RDONLY;
}
+ err = nilfs_recover_logical_segments(nilfs, sbi, &ri);
+ if (err)
+ goto failed_unload;
+
+ down_write(&nilfs->ns_sem);
+ nilfs->ns_mount_state |= NILFS_VALID_FS;
+ nilfs->ns_sbp[0]->s_state = cpu_to_le16(nilfs->ns_mount_state);
+ err = nilfs_commit_super(sbi, 1);
+ up_write(&nilfs->ns_sem);
+
+ if (err) {
+ printk(KERN_ERR "NILFS: failed to update super block. "
+ "recovery unfinished.\n");
+ goto failed_unload;
+ }
+ printk(KERN_INFO "NILFS: recovery complete.\n");
+
+ skip_recovery:
set_nilfs_loaded(nilfs);
+ nilfs_clear_recovery_info(&ri);
+ sbi->s_super->s_flags = s_flags;
+ return 0;
+
+ failed_unload:
+ nilfs_mdt_destroy(nilfs->ns_cpfile);
+ nilfs_mdt_destroy(nilfs->ns_sufile);
+ nilfs_mdt_destroy(nilfs->ns_dat);
failed:
nilfs_clear_recovery_info(&ri);