-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Fri, Aug 10, 2007 at 10:42:14AM +0200, Andrea Gasparini wrote: > i have a structure that could grow while time goes on. > rather that have a biiig static structure, we want to make it possible > allocate it in block in order to don't make kmalloc call each single time, > but don't make it to big if requests are a few. > > we have a code like that: > too_little_mystruct = mystruct; > mystruct =kmalloc(bunch_of_struct * sizeof(struct > mystruct_type),GFP_KERNEL); > memcpy(mystruct,too_little_mystruct,oldsize *sizeof(struct > mystruct_type)); > kfree(old_head); > > but i think it could lead to waste of memory, or fragmentation. or at least > it cuold be better have a single growing area. > > Are there some support for this kind of allocation inside the kernel? > It could be enough using kmalloc and kfree? > whatever? Have a look at the slab allocator (kmem_cache_create() and friends). Erik - -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGvDkE/PlVHJtIto0RArUPAJ4pmKBae3mx53H4f9ISjK4y7EKMPQCgjs84 iw3rIvWIZ9gmWPCpGweChag= =G1FT -----END PGP SIGNATURE----- -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
