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[RESEND] Btrfs: fix fs logging for multi device

Message ID 1457583808-4123-1-git-send-email-anand.jain@oracle.com (mailing list archive)
State New, archived
Headers show

Commit Message

Anand Jain March 10, 2016, 4:23 a.m. UTC 
In case of multi device btrfs fs, using one of device for
the logging purpose is quite confusing, instead use the
fsid. FSID is bit long, but the device path can be long
as well in some cases.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 fs/btrfs/super.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index fe80f73..07d55cd 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -204,12 +204,12 @@  static const char * const logtypes[] = {
 
 void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
 {
-	struct super_block *sb = fs_info->sb;
 	char lvl[4];
 	struct va_format vaf;
 	va_list args;
 	const char *type = logtypes[4];
 	int kern_level;
+	struct btrfs_fs_devices *fs_devs = fs_info->fs_devices;
 
 	va_start(args, fmt);
 
@@ -226,7 +226,7 @@  void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
 	vaf.fmt = fmt;
 	vaf.va = &args;
 
-	printk("%sBTRFS %s (device %s): %pV\n", lvl, type, sb->s_id, &vaf);
+	printk("%sBTRFS: %pU %s: %pV\n", lvl, fs_devs->fsid, type, &vaf);
 
 	va_end(args);
 }