diff options
Diffstat (limited to 'mm/hugetlb.c')
-rw-r--r-- | mm/hugetlb.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 28c655ba9353..e83ad2c9228c 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c | |||
@@ -316,7 +316,7 @@ static void resv_map_release(struct kref *ref) | |||
316 | static struct resv_map *vma_resv_map(struct vm_area_struct *vma) | 316 | static struct resv_map *vma_resv_map(struct vm_area_struct *vma) |
317 | { | 317 | { |
318 | VM_BUG_ON(!is_vm_hugetlb_page(vma)); | 318 | VM_BUG_ON(!is_vm_hugetlb_page(vma)); |
319 | if (!(vma->vm_flags & VM_SHARED)) | 319 | if (!(vma->vm_flags & VM_MAYSHARE)) |
320 | return (struct resv_map *)(get_vma_private_data(vma) & | 320 | return (struct resv_map *)(get_vma_private_data(vma) & |
321 | ~HPAGE_RESV_MASK); | 321 | ~HPAGE_RESV_MASK); |
322 | return NULL; | 322 | return NULL; |
@@ -325,7 +325,7 @@ static struct resv_map *vma_resv_map(struct vm_area_struct *vma) | |||
325 | static void set_vma_resv_map(struct vm_area_struct *vma, struct resv_map *map) | 325 | static void set_vma_resv_map(struct vm_area_struct *vma, struct resv_map *map) |
326 | { | 326 | { |
327 | VM_BUG_ON(!is_vm_hugetlb_page(vma)); | 327 | VM_BUG_ON(!is_vm_hugetlb_page(vma)); |
328 | VM_BUG_ON(vma->vm_flags & VM_SHARED); | 328 | VM_BUG_ON(vma->vm_flags & VM_MAYSHARE); |
329 | 329 | ||
330 | set_vma_private_data(vma, (get_vma_private_data(vma) & | 330 | set_vma_private_data(vma, (get_vma_private_data(vma) & |
331 | HPAGE_RESV_MASK) | (unsigned long)map); | 331 | HPAGE_RESV_MASK) | (unsigned long)map); |
@@ -334,7 +334,7 @@ static void set_vma_resv_map(struct vm_area_struct *vma, struct resv_map *map) | |||
334 | static void set_vma_resv_flags(struct vm_area_struct *vma, unsigned long flags) | 334 | static void set_vma_resv_flags(struct vm_area_struct *vma, unsigned long flags) |
335 | { | 335 | { |
336 | VM_BUG_ON(!is_vm_hugetlb_page(vma)); | 336 | VM_BUG_ON(!is_vm_hugetlb_page(vma)); |
337 | VM_BUG_ON(vma->vm_flags & VM_SHARED); | 337 | VM_BUG_ON(vma->vm_flags & VM_MAYSHARE); |
338 | 338 | ||
339 | set_vma_private_data(vma, get_vma_private_data(vma) | flags); | 339 | set_vma_private_data(vma, get_vma_private_data(vma) | flags); |
340 | } | 340 | } |
@@ -353,7 +353,7 @@ static void decrement_hugepage_resv_vma(struct hstate *h, | |||
353 | if (vma->vm_flags & VM_NORESERVE) | 353 | if (vma->vm_flags & VM_NORESERVE) |
354 | return; | 354 | return; |
355 | 355 | ||
356 | if (vma->vm_flags & VM_SHARED) { | 356 | if (vma->vm_flags & VM_MAYSHARE) { |
357 | /* Shared mappings always use reserves */ | 357 | /* Shared mappings always use reserves */ |
358 | h->resv_huge_pages--; | 358 | h->resv_huge_pages--; |
359 | } else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) { | 359 | } else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) { |
@@ -369,14 +369,14 @@ static void decrement_hugepage_resv_vma(struct hstate *h, | |||
369 | void reset_vma_resv_huge_pages(struct vm_area_struct *vma) | 369 | void reset_vma_resv_huge_pages(struct vm_area_struct *vma) |
370 | { | 370 | { |
371 | VM_BUG_ON(!is_vm_hugetlb_page(vma)); | 371 | VM_BUG_ON(!is_vm_hugetlb_page(vma)); |
372 | if (!(vma->vm_flags & VM_SHARED)) | 372 | if (!(vma->vm_flags & VM_MAYSHARE)) |
373 | vma->vm_private_data = (void *)0; | 373 | vma->vm_private_data = (void *)0; |
374 | } | 374 | } |
375 | 375 | ||
376 | /* Returns true if the VMA has associated reserve pages */ | 376 | /* Returns true if the VMA has associated reserve pages */ |
377 | static int vma_has_reserves(struct vm_area_struct *vma) | 377 | static int vma_has_reserves(struct vm_area_struct *vma) |
378 | { | 378 | { |
379 | if (vma->vm_flags & VM_SHARED) | 379 | if (vma->vm_flags & VM_MAYSHARE) |
380 | return 1; | 380 | return 1; |
381 | if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) | 381 | if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) |
382 | return 1; | 382 | return 1; |
@@ -924,7 +924,7 @@ static long vma_needs_reservation(struct hstate *h, | |||
924 | struct address_space *mapping = vma->vm_file->f_mapping; | 924 | struct address_space *mapping = vma->vm_file->f_mapping; |
925 | struct inode *inode = mapping->host; | 925 | struct inode *inode = mapping->host; |
926 | 926 | ||
927 | if (vma->vm_flags & VM_SHARED) { | 927 | if (vma->vm_flags & VM_MAYSHARE) { |
928 | pgoff_t idx = vma_hugecache_offset(h, vma, addr); | 928 | pgoff_t idx = vma_hugecache_offset(h, vma, addr); |
929 | return region_chg(&inode->i_mapping->private_list, | 929 | return region_chg(&inode->i_mapping->private_list, |
930 | idx, idx + 1); | 930 | idx, idx + 1); |
@@ -949,7 +949,7 @@ static void vma_commit_reservation(struct hstate *h, | |||
949 | struct address_space *mapping = vma->vm_file->f_mapping; | 949 | struct address_space *mapping = vma->vm_file->f_mapping; |
950 | struct inode *inode = mapping->host; | 950 | struct inode *inode = mapping->host; |
951 | 951 | ||
952 | if (vma->vm_flags & VM_SHARED) { | 952 | if (vma->vm_flags & VM_MAYSHARE) { |
953 | pgoff_t idx = vma_hugecache_offset(h, vma, addr); | 953 | pgoff_t idx = vma_hugecache_offset(h, vma, addr); |
954 | region_add(&inode->i_mapping->private_list, idx, idx + 1); | 954 | region_add(&inode->i_mapping->private_list, idx, idx + 1); |
955 | 955 | ||
@@ -1893,7 +1893,7 @@ retry_avoidcopy: | |||
1893 | * at the time of fork() could consume its reserves on COW instead | 1893 | * at the time of fork() could consume its reserves on COW instead |
1894 | * of the full address range. | 1894 | * of the full address range. |
1895 | */ | 1895 | */ |
1896 | if (!(vma->vm_flags & VM_SHARED) && | 1896 | if (!(vma->vm_flags & VM_MAYSHARE) && |
1897 | is_vma_resv_set(vma, HPAGE_RESV_OWNER) && | 1897 | is_vma_resv_set(vma, HPAGE_RESV_OWNER) && |
1898 | old_page != pagecache_page) | 1898 | old_page != pagecache_page) |
1899 | outside_reserve = 1; | 1899 | outside_reserve = 1; |
@@ -2000,7 +2000,7 @@ retry: | |||
2000 | clear_huge_page(page, address, huge_page_size(h)); | 2000 | clear_huge_page(page, address, huge_page_size(h)); |
2001 | __SetPageUptodate(page); | 2001 | __SetPageUptodate(page); |
2002 | 2002 | ||
2003 | if (vma->vm_flags & VM_SHARED) { | 2003 | if (vma->vm_flags & VM_MAYSHARE) { |
2004 | int err; | 2004 | int err; |
2005 | struct inode *inode = mapping->host; | 2005 | struct inode *inode = mapping->host; |
2006 | 2006 | ||
@@ -2104,7 +2104,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, | |||
2104 | goto out_mutex; | 2104 | goto out_mutex; |
2105 | } | 2105 | } |
2106 | 2106 | ||
2107 | if (!(vma->vm_flags & VM_SHARED)) | 2107 | if (!(vma->vm_flags & VM_MAYSHARE)) |
2108 | pagecache_page = hugetlbfs_pagecache_page(h, | 2108 | pagecache_page = hugetlbfs_pagecache_page(h, |
2109 | vma, address); | 2109 | vma, address); |
2110 | } | 2110 | } |
@@ -2289,7 +2289,7 @@ int hugetlb_reserve_pages(struct inode *inode, | |||
2289 | * to reserve the full area even if read-only as mprotect() may be | 2289 | * to reserve the full area even if read-only as mprotect() may be |
2290 | * called to make the mapping read-write. Assume !vma is a shm mapping | 2290 | * called to make the mapping read-write. Assume !vma is a shm mapping |
2291 | */ | 2291 | */ |
2292 | if (!vma || vma->vm_flags & VM_SHARED) | 2292 | if (!vma || vma->vm_flags & VM_MAYSHARE) |
2293 | chg = region_chg(&inode->i_mapping->private_list, from, to); | 2293 | chg = region_chg(&inode->i_mapping->private_list, from, to); |
2294 | else { | 2294 | else { |
2295 | struct resv_map *resv_map = resv_map_alloc(); | 2295 | struct resv_map *resv_map = resv_map_alloc(); |
@@ -2330,7 +2330,7 @@ int hugetlb_reserve_pages(struct inode *inode, | |||
2330 | * consumed reservations are stored in the map. Hence, nothing | 2330 | * consumed reservations are stored in the map. Hence, nothing |
2331 | * else has to be done for private mappings here | 2331 | * else has to be done for private mappings here |
2332 | */ | 2332 | */ |
2333 | if (!vma || vma->vm_flags & VM_SHARED) | 2333 | if (!vma || vma->vm_flags & VM_MAYSHARE) |
2334 | region_add(&inode->i_mapping->private_list, from, to); | 2334 | region_add(&inode->i_mapping->private_list, from, to); |
2335 | return 0; | 2335 | return 0; |
2336 | } | 2336 | } |