How to define global integer in fedora kernel 1

[CsharpDeveloper]

Hi ,
I try to add some new properties to linux kernel in fedora core 2 . I have to define a global integer variable in one of the header file , which I can reach it from all .c files in kernel .
i.e. it will be enough to reach and modify it from user.c and timer.c .
I tried something with extern but I got compile error when try to "make bzdisk" command .
Does anyone has solution to this problem . What should I write in header file (call it timer.h)
and what should I write in user.c and timer.c to access and modify this integer variable named int my_general_file_limit .
Please help me as soon as possible and send me e-mail if possible . I'm in a deadlock .
Thanx to everyone .
Mr.Tunca Usluer

 

[oppcos]

I haven't tried to modify the kernel, so I don't know if things work differently, in a normal c program you define the variable in just one file then refer to it as extern in the shared header file for all other c programs to reference.

Remember that #including a header file is the same thing as just typing the contents directly into the top of the c file.

Thus (for instance) in timer.c have:
int my_general_file_limit;
and in timer.h have:
extern my_general_file_limit;

Then don't redefine it anywhere else, just use it.

 

[skiflyer]

There are forums for linux desktop and linux servers... you'll probably get alot more information there.