diff options
Diffstat (limited to 'mm/util.c')
| -rw-r--r-- | mm/util.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/mm/util.c b/mm/util.c index d2890a407332..8bf08b5b5760 100644 --- a/mm/util.c +++ b/mm/util.c @@ -15,17 +15,10 @@ #include <linux/vmalloc.h> #include <linux/userfaultfd_k.h> -#include <asm/sections.h> #include <linux/uaccess.h> #include "internal.h" -static inline int is_kernel_rodata(unsigned long addr) -{ - return addr >= (unsigned long)__start_rodata && - addr < (unsigned long)__end_rodata; -} - /** * kfree_const - conditionally free memory * @x: pointer to the memory @@ -435,11 +428,14 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node) EXPORT_SYMBOL(kvmalloc_node); /** - * kvfree - free memory allocated with kvmalloc - * @addr: pointer returned by kvmalloc + * kvfree() - Free memory. + * @addr: Pointer to allocated memory. + * + * kvfree frees memory allocated by any of vmalloc(), kmalloc() or kvmalloc(). + * It is slightly more efficient to use kfree() or vfree() if you are certain + * that you know which one to use. * - * If the memory is allocated from vmalloc area it is freed with vfree(). - * Otherwise kfree() is used. + * Context: Either preemptible task context or not-NMI interrupt. */ void kvfree(const void *addr) { @@ -682,8 +678,7 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin) * Part of the kernel memory, which can be released * under memory pressure. */ - free += global_node_page_state( - NR_INDIRECTLY_RECLAIMABLE_BYTES) >> PAGE_SHIFT; + free += global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE); /* * Leave reserved pages. The pages are not for anonymous pages. |
