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DKconfig19 and a correct option.
23 DISCONTIGMEM is a more mature, better tested system,
107 # Architecture platforms which require a two level mem_section in SPARSEMEM
127 SPARSEMEM_VMEMMAP uses a virtually mapped memmap to optimise
224 used within a guest, thus imposing performance penalties associated
243 disable this option unless there really is a strong reason for
259 pages as migration can relocate pages to satisfy a huge page
283 # a 32-bit address to OHCI. So we need to use a bounce pool instead.
312 the many instances by a single page with that content, so
316 until a program has madvised that an area is MADV_MERGEABLE, and
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Dfrontswap.c116 DECLARE_BITMAP(a, MAX_SWAPFILES); in frontswap_register_ops()
121 bitmap_zero(a, MAX_SWAPFILES); in frontswap_register_ops()
127 set_bit(si->type, a); in frontswap_register_ops()
132 for_each_set_bit(i, a, MAX_SWAPFILES) in frontswap_register_ops()
159 if (unlikely(!bitmap_equal(a, b, MAX_SWAPFILES))) { in frontswap_register_ops()
161 if (!test_bit(i, a) && test_bit(i, b)) in frontswap_register_ops()
163 else if (test_bit(i, a) && !test_bit(i, b)) in frontswap_register_ops()
DKconfig.debug18 Depending on runtime enablement, this results in a small or large
26 a resume because free pages are not saved to the suspend image.
28 By default this option will have a small overhead, e.g. by not
49 have a potential performance impact.
85 This is a feature to add tracepoint for tracking down page reference
96 This option enables a testcase for the setting rodata read-only.
Dmmap.c1209 static int anon_vma_compatible(struct vm_area_struct *a, struct vm_area_struct *b) in anon_vma_compatible() argument
1211 return a->vm_end == b->vm_start && in anon_vma_compatible()
1212 mpol_equal(vma_policy(a), vma_policy(b)) && in anon_vma_compatible()
1213 a->vm_file == b->vm_file && in anon_vma_compatible()
1214 !((a->vm_flags ^ b->vm_flags) & ~(VM_READ|VM_WRITE|VM_EXEC|VM_SOFTDIRTY)) && in anon_vma_compatible()
1215 b->vm_pgoff == a->vm_pgoff + ((b->vm_start - a->vm_start) >> PAGE_SHIFT); in anon_vma_compatible()
1240 static struct anon_vma *reusable_anon_vma(struct vm_area_struct *old, struct vm_area_struct *a, str… in reusable_anon_vma() argument
1242 if (anon_vma_compatible(a, b)) { in reusable_anon_vma()
1573 struct mmap_arg_struct a; in SYSCALL_DEFINE1() local
1575 if (copy_from_user(&a, arg, sizeof(a))) in SYSCALL_DEFINE1()
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Dnommu.c1466 struct mmap_arg_struct a; in SYSCALL_DEFINE1() local
1468 if (copy_from_user(&a, arg, sizeof(a))) in SYSCALL_DEFINE1()
1470 if (offset_in_page(a.offset)) in SYSCALL_DEFINE1()
1473 return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, in SYSCALL_DEFINE1()
1474 a.offset >> PAGE_SHIFT); in SYSCALL_DEFINE1()
Dpage_poison.c53 static bool single_bit_flip(unsigned char a, unsigned char b) in single_bit_flip() argument
55 unsigned char error = a ^ b; in single_bit_flip()
Dpercpu-stats.c26 static int cmpint(const void *a, const void *b) in cmpint() argument
28 return *(int *)a - *(int *)b; in cmpint()
Dmempolicy.c2168 bool __mpol_equal(struct mempolicy *a, struct mempolicy *b) in __mpol_equal() argument
2170 if (!a || !b) in __mpol_equal()
2172 if (a->mode != b->mode) in __mpol_equal()
2174 if (a->flags != b->flags) in __mpol_equal()
2176 if (mpol_store_user_nodemask(a)) in __mpol_equal()
2177 if (!nodes_equal(a->w.user_nodemask, b->w.user_nodemask)) in __mpol_equal()
2180 switch (a->mode) { in __mpol_equal()
2184 return !!nodes_equal(a->v.nodes, b->v.nodes); in __mpol_equal()
2187 if (a->flags & MPOL_F_LOCAL) in __mpol_equal()
2189 return a->v.preferred_node == b->v.preferred_node; in __mpol_equal()
Dzsmalloc.c125 #define MAX(a, b) ((a) >= (b) ? (a) : (b)) argument
Dslab.c2491 static void swap_free_obj(struct page *page, unsigned int a, unsigned int b) in swap_free_obj() argument
2493 swap(((freelist_idx_t *)page->freelist)[a], in swap_free_obj()
3102 #define cache_alloc_debugcheck_after(a,b,objp,d) (objp) argument
Dmemcontrol.c3386 static int compare_thresholds(const void *a, const void *b) in compare_thresholds() argument
3388 const struct mem_cgroup_threshold *_a = a; in compare_thresholds()