module: remove mod arg from module_free, rename module_memfree().

Nothing needs the module pointer any more, and the next patch will
call it from RCU, where the module itself might no longer exist.
Removing the arg is the safest approach.

This just codifies the use of the module_alloc/module_free pattern
which ftrace and bpf use.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: x86@kernel.org
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: linux-cris-kernel@axis.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: nios2-dev@lists.rocketboards.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: netdev@vger.kernel.org
This commit is contained in:
Rusty Russell 2015-01-20 09:07:05 +10:30
parent d453cded05
commit be1f221c04
11 changed files with 18 additions and 18 deletions

View File

@ -36,7 +36,7 @@ void *module_alloc(unsigned long size)
}
/* Free memory returned from module_alloc */
void module_free(struct module *mod, void *module_region)
void module_memfree(void *module_region)
{
kfree(module_region);
}

View File

@ -1388,7 +1388,7 @@ out:
void bpf_jit_free(struct bpf_prog *fp)
{
if (fp->jited)
module_free(NULL, fp->bpf_func);
module_memfree(fp->bpf_func);
bpf_prog_unlock_free(fp);
}

View File

@ -36,7 +36,7 @@ void *module_alloc(unsigned long size)
}
/* Free memory returned from module_alloc */
void module_free(struct module *mod, void *module_region)
void module_memfree(void *module_region)
{
kfree(module_region);
}

View File

@ -699,7 +699,7 @@ out:
void bpf_jit_free(struct bpf_prog *fp)
{
if (fp->jited)
module_free(NULL, fp->bpf_func);
module_memfree(fp->bpf_func);
bpf_prog_unlock_free(fp);
}

View File

@ -776,7 +776,7 @@ cond_branch: f_offset = addrs[i + filter[i].jf];
if (unlikely(proglen + ilen > oldproglen)) {
pr_err("bpb_jit_compile fatal error\n");
kfree(addrs);
module_free(NULL, image);
module_memfree(image);
return;
}
memcpy(image + proglen, temp, ilen);
@ -822,7 +822,7 @@ out:
void bpf_jit_free(struct bpf_prog *fp)
{
if (fp->jited)
module_free(NULL, fp->bpf_func);
module_memfree(fp->bpf_func);
bpf_prog_unlock_free(fp);
}

View File

@ -74,7 +74,7 @@ error:
/* Free memory returned from module_alloc */
void module_free(struct module *mod, void *module_region)
void module_memfree(void *module_region)
{
vfree(module_region);

View File

@ -674,7 +674,7 @@ static inline void *alloc_tramp(unsigned long size)
}
static inline void tramp_free(void *tramp)
{
module_free(NULL, tramp);
module_memfree(tramp);
}
#else
/* Trampolines can only be created if modules are supported */

View File

@ -26,7 +26,7 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
void *module_alloc(unsigned long size);
/* Free memory returned from module_alloc. */
void module_free(struct module *mod, void *module_region);
void module_memfree(void *module_region);
/*
* Apply the given relocation to the (simplified) ELF. Return -error

View File

@ -163,7 +163,7 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
void bpf_jit_binary_free(struct bpf_binary_header *hdr)
{
module_free(NULL, hdr);
module_memfree(hdr);
}
#endif /* CONFIG_BPF_JIT */

View File

@ -127,7 +127,7 @@ static void *alloc_insn_page(void)
static void free_insn_page(void *page)
{
module_free(NULL, page);
module_memfree(page);
}
struct kprobe_insn_cache kprobe_insn_slots = {

View File

@ -1795,7 +1795,7 @@ static void unset_module_core_ro_nx(struct module *mod) { }
static void unset_module_init_ro_nx(struct module *mod) { }
#endif
void __weak module_free(struct module *mod, void *module_region)
void __weak module_memfree(void *module_region)
{
vfree(module_region);
}
@ -1846,7 +1846,7 @@ static void free_module(struct module *mod)
/* This may be NULL, but that's OK */
unset_module_init_ro_nx(mod);
module_arch_freeing_init(mod);
module_free(mod, mod->module_init);
module_memfree(mod->module_init);
kfree(mod->args);
percpu_modfree(mod);
@ -1855,7 +1855,7 @@ static void free_module(struct module *mod)
/* Finally, free the core (containing the module structure) */
unset_module_core_ro_nx(mod);
module_free(mod, mod->module_core);
module_memfree(mod->module_core);
#ifdef CONFIG_MPU
update_protections(current->mm);
@ -2790,7 +2790,7 @@ static int move_module(struct module *mod, struct load_info *info)
*/
kmemleak_ignore(ptr);
if (!ptr) {
module_free(mod, mod->module_core);
module_memfree(mod->module_core);
return -ENOMEM;
}
memset(ptr, 0, mod->init_size);
@ -2936,8 +2936,8 @@ static void module_deallocate(struct module *mod, struct load_info *info)
{
percpu_modfree(mod);
module_arch_freeing_init(mod);
module_free(mod, mod->module_init);
module_free(mod, mod->module_core);
module_memfree(mod->module_init);
module_memfree(mod->module_core);
}
int __weak module_finalize(const Elf_Ehdr *hdr,
@ -3062,7 +3062,7 @@ static int do_init_module(struct module *mod)
#endif
unset_module_init_ro_nx(mod);
module_arch_freeing_init(mod);
module_free(mod, mod->module_init);
module_memfree(mod->module_init);
mod->module_init = NULL;
mod->init_size = 0;
mod->init_ro_size = 0;