[RFC] Btrfs: fix fs logging for multi device
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Message ID 1443707725-1568-1-git-send-email-anand.jain@oracle.com
State New
Headers show

Commit Message

Anand Jain Oct. 1, 2015, 1:55 p.m. UTC
In case of multi device btrfs fs, using one of device for
the logging purpose it 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(-)

Patch
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diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 0bc61fb..181db38 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -190,12 +190,12 @@  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);
 
@@ -212,7 +212,7 @@  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);
 }