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-rw-r--r--Documentation/printk-formats.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 3e8cb73ac43c..9552a3299ec9 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -168,6 +168,15 @@ UUID/GUID addresses:
Where no additional specifiers are used the default little endian
order with lower case hex characters will be printed.
+dentry names:
+ %pd{,2,3,4}
+ %pD{,2,3,4}
+
+ For printing dentry name; if we race with d_move(), the name might be
+ a mix of old and new ones, but it won't oops. %pd dentry is a safer
+ equivalent of %s dentry->d_name.name we used to use, %pd<n> prints
+ n last components. %pD does the same thing for struct file.
+
struct va_format:
%pV

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