2301696932
Add caller information so that /proc/vmallocinfo shows where the allocation request for a slice of vmalloc memory originated. Results in output like this: 0xffffc20000000000-0xffffc20000801000 8392704 alloc_large_system_hash+0x127/0x246 pages=2048 vmalloc vpages 0xffffc20000801000-0xffffc20000806000 20480 alloc_large_system_hash+0x127/0x246 pages=4 vmalloc 0xffffc20000806000-0xffffc20000c07000 4198400 alloc_large_system_hash+0x127/0x246 pages=1024 vmalloc vpages 0xffffc20000c07000-0xffffc20000c0a000 12288 alloc_large_system_hash+0x127/0x246 pages=2 vmalloc 0xffffc20000c0a000-0xffffc20000c0c000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap 0xffffc20000c0c000-0xffffc20000c0f000 12288 acpi_os_map_memory+0x13/0x1c phys=cff64000 ioremap 0xffffc20000c10000-0xffffc20000c15000 20480 acpi_os_map_memory+0x13/0x1c phys=cff65000 ioremap 0xffffc20000c16000-0xffffc20000c18000 8192 acpi_os_map_memory+0x13/0x1c phys=cff69000 ioremap 0xffffc20000c18000-0xffffc20000c1a000 8192 acpi_os_map_memory+0x13/0x1c phys=fed1f000 ioremap 0xffffc20000c1a000-0xffffc20000c1c000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap 0xffffc20000c1c000-0xffffc20000c1e000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap 0xffffc20000c1e000-0xffffc20000c20000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap 0xffffc20000c20000-0xffffc20000c22000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap 0xffffc20000c22000-0xffffc20000c24000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap 0xffffc20000c24000-0xffffc20000c26000 8192 acpi_os_map_memory+0x13/0x1c phys=e0081000 ioremap 0xffffc20000c26000-0xffffc20000c28000 8192 acpi_os_map_memory+0x13/0x1c phys=e0080000 ioremap 0xffffc20000c28000-0xffffc20000c2d000 20480 alloc_large_system_hash+0x127/0x246 pages=4 vmalloc 0xffffc20000c2d000-0xffffc20000c31000 16384 tcp_init+0xd5/0x31c pages=3 vmalloc 0xffffc20000c31000-0xffffc20000c34000 12288 alloc_large_system_hash+0x127/0x246 pages=2 vmalloc 0xffffc20000c34000-0xffffc20000c36000 8192 init_vdso_vars+0xde/0x1f1 0xffffc20000c36000-0xffffc20000c38000 8192 pci_iomap+0x8a/0xb4 phys=d8e00000 ioremap 0xffffc20000c38000-0xffffc20000c3a000 8192 usb_hcd_pci_probe+0x139/0x295 [usbcore] phys=d8e00000 ioremap 0xffffc20000c3a000-0xffffc20000c3e000 16384 sys_swapon+0x509/0xa15 pages=3 vmalloc 0xffffc20000c40000-0xffffc20000c61000 135168 e1000_probe+0x1c4/0xa32 phys=d8a20000 ioremap 0xffffc20000c61000-0xffffc20000c6a000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap 0xffffc20000c6a000-0xffffc20000c73000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap 0xffffc20000c73000-0xffffc20000c7c000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap 0xffffc20000c7c000-0xffffc20000c7f000 12288 e1000e_setup_tx_resources+0x29/0xbe pages=2 vmalloc 0xffffc20000c80000-0xffffc20001481000 8392704 pci_mmcfg_arch_init+0x90/0x118 phys=e0000000 ioremap 0xffffc20001481000-0xffffc20001682000 2101248 alloc_large_system_hash+0x127/0x246 pages=512 vmalloc 0xffffc20001682000-0xffffc20001e83000 8392704 alloc_large_system_hash+0x127/0x246 pages=2048 vmalloc vpages 0xffffc20001e83000-0xffffc20002204000 3674112 alloc_large_system_hash+0x127/0x246 pages=896 vmalloc vpages 0xffffc20002204000-0xffffc2000220d000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap 0xffffc2000220d000-0xffffc20002216000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap 0xffffc20002216000-0xffffc2000221f000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap 0xffffc2000221f000-0xffffc20002228000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap 0xffffc20002228000-0xffffc20002231000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap 0xffffc20002231000-0xffffc20002234000 12288 e1000e_setup_rx_resources+0x35/0x122 pages=2 vmalloc 0xffffc20002240000-0xffffc20002261000 135168 e1000_probe+0x1c4/0xa32 phys=d8a60000 ioremap 0xffffc20002261000-0xffffc2000270c000 4894720 sys_swapon+0x509/0xa15 pages=1194 vmalloc vpages 0xffffffffa0000000-0xffffffffa0022000 139264 module_alloc+0x4f/0x55 pages=33 vmalloc 0xffffffffa0022000-0xffffffffa0029000 28672 module_alloc+0x4f/0x55 pages=6 vmalloc 0xffffffffa002b000-0xffffffffa0034000 36864 module_alloc+0x4f/0x55 pages=8 vmalloc 0xffffffffa0034000-0xffffffffa003d000 36864 module_alloc+0x4f/0x55 pages=8 vmalloc 0xffffffffa003d000-0xffffffffa0049000 49152 module_alloc+0x4f/0x55 pages=11 vmalloc 0xffffffffa0049000-0xffffffffa0050000 28672 module_alloc+0x4f/0x55 pages=6 vmalloc [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Christoph Lameter <clameter@sgi.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
#ifndef _LINUX_VMALLOC_H
|
|
#define _LINUX_VMALLOC_H
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <asm/page.h> /* pgprot_t */
|
|
|
|
struct vm_area_struct;
|
|
|
|
/* bits in vm_struct->flags */
|
|
#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
|
|
#define VM_ALLOC 0x00000002 /* vmalloc() */
|
|
#define VM_MAP 0x00000004 /* vmap()ed pages */
|
|
#define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
|
|
#define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
|
|
/* bits [20..32] reserved for arch specific ioremap internals */
|
|
|
|
/*
|
|
* Maximum alignment for ioremap() regions.
|
|
* Can be overriden by arch-specific value.
|
|
*/
|
|
#ifndef IOREMAP_MAX_ORDER
|
|
#define IOREMAP_MAX_ORDER (7 + PAGE_SHIFT) /* 128 pages */
|
|
#endif
|
|
|
|
struct vm_struct {
|
|
/* keep next,addr,size together to speedup lookups */
|
|
struct vm_struct *next;
|
|
void *addr;
|
|
unsigned long size;
|
|
unsigned long flags;
|
|
struct page **pages;
|
|
unsigned int nr_pages;
|
|
unsigned long phys_addr;
|
|
void *caller;
|
|
};
|
|
|
|
/*
|
|
* Highlevel APIs for driver use
|
|
*/
|
|
extern void *vmalloc(unsigned long size);
|
|
extern void *vmalloc_user(unsigned long size);
|
|
extern void *vmalloc_node(unsigned long size, int node);
|
|
extern void *vmalloc_exec(unsigned long size);
|
|
extern void *vmalloc_32(unsigned long size);
|
|
extern void *vmalloc_32_user(unsigned long size);
|
|
extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
|
|
extern void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask,
|
|
pgprot_t prot);
|
|
extern void vfree(const void *addr);
|
|
|
|
extern void *vmap(struct page **pages, unsigned int count,
|
|
unsigned long flags, pgprot_t prot);
|
|
extern void vunmap(const void *addr);
|
|
|
|
extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
|
|
unsigned long pgoff);
|
|
void vmalloc_sync_all(void);
|
|
|
|
/*
|
|
* Lowlevel-APIs (not for driver use!)
|
|
*/
|
|
|
|
static inline size_t get_vm_area_size(const struct vm_struct *area)
|
|
{
|
|
/* return actual size without guard page */
|
|
return area->size - PAGE_SIZE;
|
|
}
|
|
|
|
extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags);
|
|
extern struct vm_struct *get_vm_area_caller(unsigned long size,
|
|
unsigned long flags, void *caller);
|
|
extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
|
|
unsigned long start, unsigned long end);
|
|
extern struct vm_struct *get_vm_area_node(unsigned long size,
|
|
unsigned long flags, int node,
|
|
gfp_t gfp_mask);
|
|
extern struct vm_struct *remove_vm_area(const void *addr);
|
|
|
|
extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
|
|
struct page ***pages);
|
|
extern void unmap_kernel_range(unsigned long addr, unsigned long size);
|
|
|
|
/* Allocate/destroy a 'vmalloc' VM area. */
|
|
extern struct vm_struct *alloc_vm_area(size_t size);
|
|
extern void free_vm_area(struct vm_struct *area);
|
|
|
|
/*
|
|
* Internals. Dont't use..
|
|
*/
|
|
extern rwlock_t vmlist_lock;
|
|
extern struct vm_struct *vmlist;
|
|
|
|
extern const struct seq_operations vmalloc_op;
|
|
|
|
#endif /* _LINUX_VMALLOC_H */
|