From 7950e3852ab86826b7349a535d2e8b0000340d7f Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 10 Oct 2012 16:43:13 -0400 Subject: vfs: embed struct filename inside of names_cache allocation if possible In the common case where a name is much smaller than PATH_MAX, an extra allocation for struct filename is unnecessary. Before allocating a separate one, try to embed the struct filename inside the buffer first. If it turns out that that's not long enough, then fall back to allocating a separate struct filename and redoing the copy. Signed-off-by: Jeff Layton Signed-off-by: Al Viro --- include/linux/fs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index 4aa7160a51c..65fbf571023 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2201,6 +2201,7 @@ struct filename { const char *name; /* pointer to actual string */ const __user char *uptr; /* original userland pointer */ struct audit_names *aname; + bool separate; /* should "name" be freed? */ }; extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs, -- cgit v1.2.3