Re: dget()

Re: dget()

[Rick Hohensee]

and the Linux source crossreferencing site at

http://lxr.linux.no/

is awesome.

Rick Hohensee
www.clienux.com

	

dget()

[Blesson Paul]

Hi
             In everyfile system, dget() function is called. But I cannot find
where is the dget() function is written. Where is it

Thanks in advance
                              by 
                                     Blesson

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Re: dget()

[Tigran Aivazian]

On 15 May 2001, Blesson Paul wrote:
>              In everyfile system, dget() function is called. But I cannot find
> where is the dget() function is written. Where is it

To find this out, you type:

# vi -t dget

and then look at the bottom line which would show
"./include/linux/dcache.h"

This assumes you have built the tags by:

# cd /usr/src/linux
# find -name '*.[ch]' | ctags -L- &
# echo "set tags=tags" >> .vimrc

And, btw, it is a static inline, not a function per se.

Regards,
Tigran

Re: dget()

[Xavier Bestel]

Le 15 May 2001 09:21:47 +0100, Tigran Aivazian a écrit :
> On 15 May 2001, Blesson Paul wrote:
> >              In everyfile system, dget() function is called. But I cannot find
> > where is the dget() function is written. Where is it
> 
> To find this out, you type:
> 
> # vi -t dget
> 
> and then look at the bottom line which would show
> "./include/linux/dcache.h"
> 
> This assumes you have built the tags by:
> 
> # cd /usr/src/linux
> # find -name '*.[ch]' | ctags -L- &
> # echo "set tags=tags" >> .vimrc

... or:
# cd /usr/src/linux
# make tags

Xav

Re: dget()

[Tigran Aivazian]

On 15 May 2001, Xavier Bestel wrote:
> # cd /usr/src/linux
> # make tags

No, I never use that one because it skips very useful entries like the
ones from EXPORT_SYMBOL etc. Also, it only shows the current architecture.
So, the tags target in the Makefile would only become useful when it is
stripped of extra (unnecessary, imho) logic and turned into a plain one I
suggested above.

Regards,
Tigran

Re: dget()

[Pete Wyckoff]

tigran@veritas.com said:
> # cd /usr/src/linux
> # find -name '*.[ch]' | ctags -L- &
>
> On 15 May 2001, Xavier Bestel wrote:
> > # cd /usr/src/linux
> > # make tags
> 
> No, I never use that one because it skips very useful entries like the
> ones from EXPORT_SYMBOL etc. Also, it only shows the current architecture.
> So, the tags target in the Makefile would only become useful when it is
> stripped of extra (unnecessary, imho) logic and turned into a plain one I
> suggested above.

You can use the -I feature to ignore some keywords, but not the
functions they modify.  Without ignoring __initdata, for instance, you
get a couple hundred tags for it, and none for the actual variable,
e.g. cpu_vendor_names.  My current ignore list for the kernel is at
http://www.osc.edu/~pw/ctags-ignore .
If you really want to see the EXPORT_SYMBOL(tag) lines, you'll want
to remove that one from the list (and be sure to do the sorting...),

Next, the wonderful editor Vim doesn't read my mind quite well enough.
When I want to see the tag for "page", for example, I really
want to look at the definition of the struct in include/linux/mm.h, not
at any of the 16 other places which declare a variable struct page *page;.
So I run the tags file through a perl script which percolates those
interesting items to the top when there are multiple entries for the
same identifier.  It's here: http://www.osc.edu/~pw/sort-tags .

Finally, I modify the Makefile to generate tags with these
modifications. Here's the snippet: 

tags: dummy
	( find include/asm-$(ARCH) -name "*.h" ;\
	  find include -type d \( -name "asm-*" -o -name config \) -prune \
	  -o -name "*.h" -print ; find $(SUBDIRS) init -name '*.[chS]' ) |\
	ctags -I../ctags-ignore -L - -f - | sort-tags > tags

Note that this only generates tags for your current architecture,
and that your ctags must be Exuberant and version >= 5.0.

		-- Pete

Re: dget()

[Alexander Viro]

On 15 May 2001, Blesson Paul wrote:

> Hi
>              In everyfile system, dget() function is called. But I cannot find
> where is the dget() function is written. Where is it

man grep