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Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c40
1 files changed, 37 insertions, 3 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 09d9359c805..02bf2434397 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -671,6 +671,7 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
unsigned long def_mount_opts;
struct super_block *sb = vfs->mnt_sb;
struct ext4_sb_info *sbi = EXT4_SB(sb);
+ journal_t *journal = sbi->s_journal;
struct ext4_super_block *es = sbi->s_es;
def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
@@ -729,8 +730,15 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_printf(seq, ",commit=%u",
(unsigned) (sbi->s_commit_interval / HZ));
}
- if (test_opt(sb, BARRIER))
- seq_puts(seq, ",barrier=1");
+ /*
+ * We're changing the default of barrier mount option, so
+ * let's always display its mount state so it's clear what its
+ * status is.
+ */
+ seq_puts(seq, ",barrier=");
+ seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
+ if (test_opt(sb, JOURNAL_ASYNC_COMMIT))
+ seq_puts(seq, ",journal_async_commit");
if (test_opt(sb, NOBH))
seq_puts(seq, ",nobh");
if (!test_opt(sb, EXTENTS))
@@ -1907,6 +1915,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
set_opt(sbi->s_mount_opt, RESERVATION);
+ set_opt(sbi->s_mount_opt, BARRIER);
/*
* turn on extents feature by default in ext4 filesystem
@@ -2189,6 +2198,29 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL)) {
if (ext4_load_journal(sb, es, journal_devnum))
goto failed_mount3;
+ if (!(sb->s_flags & MS_RDONLY) &&
+ EXT4_SB(sb)->s_journal->j_failed_commit) {
+ printk(KERN_CRIT "EXT4-fs error (device %s): "
+ "ext4_fill_super: Journal transaction "
+ "%u is corrupt\n", sb->s_id,
+ EXT4_SB(sb)->s_journal->j_failed_commit);
+ if (test_opt (sb, ERRORS_RO)) {
+ printk (KERN_CRIT
+ "Mounting filesystem read-only\n");
+ sb->s_flags |= MS_RDONLY;
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+ es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+ }
+ 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);
+ printk(KERN_CRIT
+ "EXT4-fs (device %s): mount failed\n",
+ sb->s_id);
+ goto failed_mount4;
+ }
+ }
} else if (journal_inum) {
if (ext4_create_journal(sb, es, journal_inum))
goto failed_mount3;
@@ -3305,8 +3337,10 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
blk++;
}
out:
- if (len == towrite)
+ if (len == towrite) {
+ mutex_unlock(&inode->i_mutex);
return err;
+ }
if (inode->i_size < off+len-towrite) {
i_size_write(inode, off+len-towrite);
EXT4_I(inode)->i_disksize = inode->i_size;