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author | Al Viro <viro@zeniv.linux.org.uk> | 2013-09-03 12:00:44 -0400 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-09-04 00:13:11 -0400 |
commit | 4b6ccca701ef5977d0ffbc2c932430dea88b38b6 (patch) | |
tree | f8daa1243e24168fba2595c29805765856708673 /Documentation/printk-formats.txt | |
parent | cffe78d92c217a57f57ec6743f71adfe39ea543e (diff) | |
download | op-kernel-dev-4b6ccca701ef5977d0ffbc2c932430dea88b38b6.zip op-kernel-dev-4b6ccca701ef5977d0ffbc2c932430dea88b38b6.tar.gz |
add formats for dentry/file pathnames
New formats: %p[dD][234]?. The next pointer is interpreted as struct dentry *
or struct file * resp. ('d' => dentry, 'D' => file) and the last component(s)
of pathname are printed (%pd => just the last one, %pd2 => the last two, etc.)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'Documentation/printk-formats.txt')
-rw-r--r-- | Documentation/printk-formats.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt index 3e8cb73..9552a32 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 |