Hi Mohit, Please refer to ULK 3rd edition Section 12.5 pathname lookup, it says: struct qstr last Last component of the pathname (used when the LOOKUP_PARENT flag is set) so if LOOKUP_PARENT is set, last refers to the last name components, e.g. in /a/b/c it reference to c while path->dentry->qstr will refer to b because you intended to lookup parent not the last component. Note that path is an output parameter while last is input parameter. Rajat On Thu, Jan 6, 2011 at 5:18 PM, mohit verma <mohit89mlnc@gmail.com> wrote:
---------- Forwarded message ---------- From: mohit verma <mohit89mlnc@gmail.com> Date: Thu, Jan 6, 2011 at 5:10 PM Subject: nameidata data structure again To: kernelnewbies <kernelnewbies@nl.linux.org>
hi folks,
we have qstr data structure part in nameidata structure in name resolution. so it may work like this :
nameidata->path->dentry->qstr.
it is the real name component in a path name for that directory ro file (i think so).
so what is the need of having another qstr like:
namidata->qstr (ie. last)
in nameidata structure. sorry ,it may seem foolish to u guys but i ............
thanks in advance. -- ........................ MOHIT VERMA
-- ........................ MOHIT VERMA
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