ext4: Add second mount options field since the s_mount_opt is full up

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

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index ddae3c4..17baecb 100644 (file)
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -908,6 +908,13 @@ struct ext4_inode_info {
 #define test_opt(sb, opt)              (EXT4_SB(sb)->s_mount_opt & \
                                         EXT4_MOUNT_##opt)
 
+#define clear_opt2(sb, opt)            EXT4_SB(sb)->s_mount_opt2 &= \
+                                               ~EXT4_MOUNT2_##opt
+#define set_opt2(sb, opt)              EXT4_SB(sb)->s_mount_opt2 |= \
+                                               EXT4_MOUNT2_##opt
+#define test_opt2(sb, opt)             (EXT4_SB(sb)->s_mount_opt2 & \
+                                        EXT4_MOUNT2_##opt)
+
 #define ext4_set_bit                   ext2_set_bit
 #define ext4_set_bit_atomic            ext2_set_bit_atomic
 #define ext4_clear_bit                 ext2_clear_bit
@@ -1073,6 +1080,7 @@ struct ext4_sb_info {
        struct ext4_super_block *s_es;  /* Pointer to the super block in the buffer */
        struct buffer_head **s_group_desc;
        unsigned int s_mount_opt;
+       unsigned int s_mount_opt2;
        unsigned int s_mount_flags;
        ext4_fsblk_t s_sb_block;
        uid_t s_resuid;

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 7aa3a79..072ff97 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1895,12 +1895,12 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
        ext4_commit_super(sb, 1);
        if (test_opt(sb, DEBUG))
                printk(KERN_INFO "[EXT4 FS bs=%lu, gc=%u, "
-                               "bpg=%lu, ipg=%lu, mo=%04x]\n",
+                               "bpg=%lu, ipg=%lu, mo=%04x, mo2=%04x]\n",
                        sb->s_blocksize,
                        sbi->s_groups_count,
                        EXT4_BLOCKS_PER_GROUP(sb),
                        EXT4_INODES_PER_GROUP(sb),
-                       sbi->s_mount_opt);
+                       sbi->s_mount_opt, sbi->s_mount_opt2);
 
        return res;
 }
@@ -4171,6 +4171,7 @@ static int ext4_unfreeze(struct super_block *sb)
  */
 struct ext4_mount_options {
        unsigned long s_mount_opt;
+       unsigned long s_mount_opt2;
        uid_t s_resuid;
        gid_t s_resgid;
        unsigned long s_commit_interval;
@@ -4201,6 +4202,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
        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;
        old_opts.s_resuid = sbi->s_resuid;
        old_opts.s_resgid = sbi->s_resgid;
        old_opts.s_commit_interval = sbi->s_commit_interval;
@@ -4354,6 +4356,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
 restore_opts:
        sb->s_flags = old_sb_flags;
        sbi->s_mount_opt = old_opts.s_mount_opt;
+       sbi->s_mount_opt2 = old_opts.s_mount_opt2;
        sbi->s_resuid = old_opts.s_resuid;
        sbi->s_resgid = old_opts.s_resgid;
        sbi->s_commit_interval = old_opts.s_commit_interval;