how to realloc size of array of character (global var) used by create_proc_read_entry

zerop · 08-02-2014, 12:57 AM

in kernel module,
how to realloc size of array of character (global var) used by create_proc_read_entry

when i use vmalloc to reassign this variable,
it will make linux hang

it seems using another new memory location not allowed

how to base the original memory location to expand the size of array of character?

smallpond · 08-02-2014, 06:17 PM

create_proc_read_entry was removed in 3.10 so you must be on an old kernel.
It can return a partial result and variable length, so you should not need to realloc anything.