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-rw-r--r--Documentation/printk-formats.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index b784c270105f..6389551bbad6 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -250,6 +250,12 @@ dentry names:
Passed by reference.
+block_device names:
+
+ %pg sda, sda1 or loop0p1
+
+ For printing name of block_device pointers.
+
struct va_format:
%pV