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Diffstat (limited to 'fs/ocfs2/super.c')
-rw-r--r--fs/ocfs2/super.c63
1 files changed, 44 insertions, 19 deletions
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 4474ef2bbc96..e79058ecfb4b 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -192,6 +192,7 @@ enum {
Opt_resv_level,
Opt_dir_resv_level,
Opt_journal_async_commit,
+ Opt_err_cont,
Opt_err,
};
@@ -224,6 +225,7 @@ static const match_table_t tokens = {
{Opt_resv_level, "resv_level=%u"},
{Opt_dir_resv_level, "dir_resv_level=%u"},
{Opt_journal_async_commit, "journal_async_commit"},
+ {Opt_err_cont, "errors=continue"},
{Opt_err, NULL}
};
@@ -1330,10 +1332,19 @@ static int ocfs2_parse_options(struct super_block *sb,
mopt->mount_opt |= OCFS2_MOUNT_NOINTR;
break;
case Opt_err_panic:
+ mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT;
+ mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS;
mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC;
break;
case Opt_err_ro:
+ mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT;
mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC;
+ mopt->mount_opt |= OCFS2_MOUNT_ERRORS_ROFS;
+ break;
+ case Opt_err_cont:
+ mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS;
+ mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC;
+ mopt->mount_opt |= OCFS2_MOUNT_ERRORS_CONT;
break;
case Opt_data_ordered:
mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK;
@@ -1530,6 +1541,8 @@ static int ocfs2_show_options(struct seq_file *s, struct dentry *root)
if (opts & OCFS2_MOUNT_ERRORS_PANIC)
seq_printf(s, ",errors=panic");
+ else if (opts & OCFS2_MOUNT_ERRORS_CONT)
+ seq_printf(s, ",errors=continue");
else
seq_printf(s, ",errors=remount-ro");
@@ -2539,31 +2552,43 @@ static void ocfs2_delete_osb(struct ocfs2_super *osb)
memset(osb, 0, sizeof(struct ocfs2_super));
}
-/* Put OCFS2 into a readonly state, or (if the user specifies it),
- * panic(). We do not support continue-on-error operation. */
-static void ocfs2_handle_error(struct super_block *sb)
+/* Depending on the mount option passed, perform one of the following:
+ * Put OCFS2 into a readonly state (default)
+ * Return EIO so that only the process errs
+ * Fix the error as if fsck.ocfs2 -y
+ * panic
+ */
+static int ocfs2_handle_error(struct super_block *sb)
{
struct ocfs2_super *osb = OCFS2_SB(sb);
-
- if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC)
- panic("OCFS2: (device %s): panic forced after error\n",
- sb->s_id);
+ int rv = 0;
ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS);
+ pr_crit("On-disk corruption discovered. "
+ "Please run fsck.ocfs2 once the filesystem is unmounted.\n");
- if (sb->s_flags & MS_RDONLY &&
- (ocfs2_is_soft_readonly(osb) ||
- ocfs2_is_hard_readonly(osb)))
- return;
-
- printk(KERN_CRIT "File system is now read-only due to the potential "
- "of on-disk corruption. Please run fsck.ocfs2 once the file "
- "system is unmounted.\n");
- sb->s_flags |= MS_RDONLY;
- ocfs2_set_ro_flag(osb, 0);
+ if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) {
+ panic("OCFS2: (device %s): panic forced after error\n",
+ sb->s_id);
+ } else if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_CONT) {
+ pr_crit("OCFS2: Returning error to the calling process.\n");
+ rv = -EIO;
+ } else { /* default option */
+ rv = -EROFS;
+ if (sb->s_flags & MS_RDONLY &&
+ (ocfs2_is_soft_readonly(osb) ||
+ ocfs2_is_hard_readonly(osb)))
+ return rv;
+
+ pr_crit("OCFS2: File system is now read-only.\n");
+ sb->s_flags |= MS_RDONLY;
+ ocfs2_set_ro_flag(osb, 0);
+ }
+
+ return rv;
}
-void __ocfs2_error(struct super_block *sb, const char *function,
+int __ocfs2_error(struct super_block *sb, const char *function,
const char *fmt, ...)
{
struct va_format vaf;
@@ -2580,7 +2605,7 @@ void __ocfs2_error(struct super_block *sb, const char *function,
va_end(args);
- ocfs2_handle_error(sb);
+ return ocfs2_handle_error(sb);
}
/* Handle critical errors. This is intentionally more drastic than