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-rw-r--r--fs/btrfs/super.c41
1 files changed, 35 insertions, 6 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index fa61ef59cd6..8c6e61d6eed 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -125,6 +125,7 @@ static void btrfs_handle_error(struct btrfs_fs_info *fs_info)
}
}
+#ifdef CONFIG_PRINTK
/*
* __btrfs_std_error decodes expected errors from the caller and
* invokes the approciate error response.
@@ -167,7 +168,7 @@ void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function,
va_end(args);
}
-const char *logtypes[] = {
+static const char * const logtypes[] = {
"emergency",
"alert",
"critical",
@@ -185,22 +186,50 @@ void btrfs_printk(struct btrfs_fs_info *fs_info, const char *fmt, ...)
struct va_format vaf;
va_list args;
const char *type = logtypes[4];
+ int kern_level;
va_start(args, fmt);
- if (fmt[0] == '<' && isdigit(fmt[1]) && fmt[2] == '>') {
- memcpy(lvl, fmt, 3);
- lvl[3] = '\0';
- fmt += 3;
- type = logtypes[fmt[1] - '0'];
+ kern_level = printk_get_level(fmt);
+ if (kern_level) {
+ size_t size = printk_skip_level(fmt) - fmt;
+ memcpy(lvl, fmt, size);
+ lvl[size] = '\0';
+ fmt += size;
+ type = logtypes[kern_level - '0'];
} else
*lvl = '\0';
vaf.fmt = fmt;
vaf.va = &args;
+
printk("%sBTRFS %s (device %s): %pV", lvl, type, sb->s_id, &vaf);
+
+ va_end(args);
}
+#else
+
+void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function,
+ unsigned int line, int errno, const char *fmt, ...)
+{
+ struct super_block *sb = fs_info->sb;
+
+ /*
+ * Special case: if the error is EROFS, and we're already
+ * under MS_RDONLY, then it is safe here.
+ */
+ if (errno == -EROFS && (sb->s_flags & MS_RDONLY))
+ return;
+
+ /* Don't go through full error handling during mount */
+ if (sb->s_flags & MS_BORN) {
+ save_error_info(fs_info);
+ btrfs_handle_error(fs_info);
+ }
+}
+#endif
+
/*
* We only mark the transaction aborted and then set the file system read-only.
* This will prevent new transactions from starting or trying to join this