ext4: Simplify ext4_commit_super()'s function signature

The ext4_commit_super() function took both a struct super_block * and
a struct ext4_super_block *, but the struct ext4_super_block can be
derived from the struct super_block.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 3e509bc..ad4c9be 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -54,8 +54,7 @@ static struct kset *ext4_kset;
 
 static int ext4_load_journal(struct super_block *, struct ext4_super_block *,
                             unsigned long journal_devnum);
-static int ext4_commit_super(struct super_block *sb,
-                             struct ext4_super_block *es, int sync);
+static int ext4_commit_super(struct super_block *sb, int sync);
 static void ext4_mark_recovery_complete(struct super_block *sb,
                                        struct ext4_super_block *es);
 static void ext4_clear_journal_err(struct super_block *sb,
@@ -306,7 +305,7 @@ static void ext4_handle_error(struct super_block *sb)
                printk(KERN_CRIT "Remounting filesystem read-only\n");
                sb->s_flags |= MS_RDONLY;
        }
-       ext4_commit_super(sb, es, 1);
+       ext4_commit_super(sb, 1);
        if (test_opt(sb, ERRORS_PANIC))
                panic("EXT4-fs (device %s): panic forced after error\n",
                        sb->s_id);
@@ -448,7 +447,7 @@ __acquires(bitlock)
        if (test_opt(sb, ERRORS_CONT)) {
                EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
                es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
-               ext4_commit_super(sb, es, 0);
+               ext4_commit_super(sb, 0);
                return;
        }
        ext4_unlock_group(sb, grp);
@@ -577,7 +576,7 @@ static void ext4_put_super(struct super_block *sb)
        if (!(sb->s_flags & MS_RDONLY)) {
                EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
                es->s_state = cpu_to_le16(sbi->s_mount_state);
-               ext4_commit_super(sb, es, 1);
+               ext4_commit_super(sb, 1);
        }
        if (sbi->s_proc) {
                remove_proc_entry(sb->s_id, ext4_proc_root);
@@ -1596,7 +1595,7 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
        if (sbi->s_journal)
                EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
 
-       ext4_commit_super(sb, es, 1);
+       ext4_commit_super(sb, 1);
        if (test_opt(sb, DEBUG))
                printk(KERN_INFO "[EXT4 FS bs=%lu, gc=%u, "
                                "bpg=%lu, ipg=%lu, mo=%04lx]\n",
@@ -2655,7 +2654,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
                        if (test_opt(sb, ERRORS_PANIC)) {
                                EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
                                es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
-                               ext4_commit_super(sb, es, 1);
+                               ext4_commit_super(sb, 1);
                                goto failed_mount4;
                        }
                }
@@ -3132,15 +3131,15 @@ static int ext4_load_journal(struct super_block *sb,
                sb->s_dirt = 1;
 
                /* Make sure we flush the recovery flag to disk. */
-               ext4_commit_super(sb, es, 1);
+               ext4_commit_super(sb, 1);
        }
 
        return 0;
 }
 
-static int ext4_commit_super(struct super_block *sb,
-                             struct ext4_super_block *es, int sync)
+static int ext4_commit_super(struct super_block *sb, int sync)
 {
+       struct ext4_super_block *es = EXT4_SB(sb)->s_es;
        struct buffer_head *sbh = EXT4_SB(sb)->s_sbh;
        int error = 0;
 
@@ -3212,7 +3211,7 @@ static void ext4_mark_recovery_complete(struct super_block *sb,
            sb->s_flags & MS_RDONLY) {
                EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
                sb->s_dirt = 0;
-               ext4_commit_super(sb, es, 1);
+               ext4_commit_super(sb, 1);
        }
        unlock_super(sb);
 
@@ -3253,7 +3252,7 @@ static void ext4_clear_journal_err(struct super_block *sb,
 
                EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
                es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
-               ext4_commit_super(sb, es, 1);
+               ext4_commit_super(sb, 1);
 
                jbd2_journal_clear_err(journal);
        }
@@ -3293,7 +3292,7 @@ static void ext4_write_super(struct super_block *sb)
                        BUG();
                sb->s_dirt = 0;
        } else {
-               ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
+               ext4_commit_super(sb, 1);
        }
 }
 
@@ -3312,7 +3311,7 @@ static int ext4_sync_fs(struct super_block *sb, int wait)
                                                     target);
                }
        } else {
-               ext4_commit_super(sb, EXT4_SB(sb)->s_es, wait);
+               ext4_commit_super(sb, wait);
        }
        return ret;
 }
@@ -3345,7 +3344,7 @@ static int ext4_freeze(struct super_block *sb)
 
                /* Journal blocked and flushed, clear needs_recovery flag. */
                EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
-               error = ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
+               error = ext4_commit_super(sb, 1);
                if (error)
                        goto out;
        }
@@ -3365,7 +3364,7 @@ static int ext4_unfreeze(struct super_block *sb)
                lock_super(sb);
                /* Reser the needs_recovery flag before the fs is unlocked. */
                EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
-               ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
+               ext4_commit_super(sb, 1);
                unlock_super(sb);
                jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
        }
@@ -3520,7 +3519,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
                }
        }
        if (sbi->s_journal == NULL)
-               ext4_commit_super(sb, es, 1);
+               ext4_commit_super(sb, 1);
 
 #ifdef CONFIG_QUOTA
        /* Release old quota file names */