Commit 07724f98 authored by Theodore Ts'o's avatar Theodore Ts'o

ext4: drop lock_super()/unlock_super()

We don't need lock_super()/unlock_super() any more, since the places
where it is used, we are protected by the s_umount r/w semaphore.
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
Cc: Marco Stornelli <marco.stornelli@gmail.com>
parent 0e376b1e
......@@ -861,7 +861,6 @@ static void ext4_put_super(struct super_block *sb)
flush_workqueue(sbi->dio_unwritten_wq);
destroy_workqueue(sbi->dio_unwritten_wq);
lock_super(sb);
if (sbi->s_journal) {
err = jbd2_journal_destroy(sbi->s_journal);
sbi->s_journal = NULL;
......@@ -928,7 +927,6 @@ static void ext4_put_super(struct super_block *sb)
* Now that we are completely done shutting down the
* superblock, we need to actually destroy the kobject.
*/
unlock_super(sb);
kobject_put(&sbi->s_kobj);
wait_for_completion(&sbi->s_kobj_unregister);
if (sbi->s_chksum_driver)
......@@ -4535,11 +4533,9 @@ static int ext4_unfreeze(struct super_block *sb)
if (sb->s_flags & MS_RDONLY)
return 0;
lock_super(sb);
/* Reset the needs_recovery flag before the fs is unlocked. */
EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
ext4_commit_super(sb, 1);
unlock_super(sb);
return 0;
}
......@@ -4575,7 +4571,6 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
char *orig_data = kstrdup(data, GFP_KERNEL);
/* Store the original options */
lock_super(sb);
old_sb_flags = sb->s_flags;
old_opts.s_mount_opt = sbi->s_mount_opt;
old_opts.s_mount_opt2 = sbi->s_mount_opt2;
......@@ -4717,7 +4712,6 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
if (sbi->s_journal == NULL)
ext4_commit_super(sb, 1);
unlock_super(sb);
#ifdef CONFIG_QUOTA
/* Release old quota file names */
for (i = 0; i < MAXQUOTAS; i++)
......@@ -4730,10 +4724,8 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
else if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
EXT4_FEATURE_RO_COMPAT_QUOTA)) {
err = ext4_enable_quotas(sb);
if (err) {
lock_super(sb);
if (err)
goto restore_opts;
}
}
}
#endif
......@@ -4760,7 +4752,6 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
sbi->s_qf_names[i] = old_opts.s_qf_names[i];
}
#endif
unlock_super(sb);
kfree(orig_data);
return err;
}
......
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