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Diffstat (limited to 'fs/btrfs/accessors.c')
-rw-r--r--fs/btrfs/accessors.c98
1 files changed, 54 insertions, 44 deletions
diff --git a/fs/btrfs/accessors.c b/fs/btrfs/accessors.c
index 206cf1612c1d..1925a0919ca6 100644
--- a/fs/btrfs/accessors.c
+++ b/fs/btrfs/accessors.c
@@ -27,7 +27,7 @@ static bool check_setget_bounds(const struct extent_buffer *eb,
void btrfs_init_map_token(struct btrfs_map_token *token, struct extent_buffer *eb)
{
token->eb = eb;
- token->kaddr = page_address(eb->pages[0]);
+ token->kaddr = folio_address(eb->folios[0]);
token->offset = 0;
}
@@ -50,7 +50,7 @@ void btrfs_init_map_token(struct btrfs_map_token *token, struct extent_buffer *e
* an offset into the extent buffer page array, cast to a specific type. This
* gives us all the type checking.
*
- * The extent buffer pages stored in the array pages do not form a contiguous
+ * The extent buffer pages stored in the array folios may not form a contiguous
* phyusical range, but the API functions assume the linear offset to the range
* from 0 to metadata node size.
*/
@@ -60,28 +60,30 @@ u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \
const void *ptr, unsigned long off) \
{ \
const unsigned long member_offset = (unsigned long)ptr + off; \
- const unsigned long idx = get_eb_page_index(member_offset); \
- const unsigned long oip = get_eb_offset_in_page(token->eb, \
- member_offset); \
+ const unsigned long idx = get_eb_folio_index(token->eb, member_offset); \
+ const unsigned long oil = get_eb_offset_in_folio(token->eb, \
+ member_offset);\
+ const int unit_size = folio_size(token->eb->folios[0]); \
+ const int unit_shift = folio_shift(token->eb->folios[0]); \
const int size = sizeof(u##bits); \
u8 lebytes[sizeof(u##bits)]; \
- const int part = PAGE_SIZE - oip; \
+ const int part = unit_size - oil; \
\
ASSERT(token); \
ASSERT(token->kaddr); \
ASSERT(check_setget_bounds(token->eb, ptr, off, size)); \
if (token->offset <= member_offset && \
- member_offset + size <= token->offset + PAGE_SIZE) { \
- return get_unaligned_le##bits(token->kaddr + oip); \
+ member_offset + size <= token->offset + unit_size) { \
+ return get_unaligned_le##bits(token->kaddr + oil); \
} \
- token->kaddr = page_address(token->eb->pages[idx]); \
- token->offset = idx << PAGE_SHIFT; \
- if (INLINE_EXTENT_BUFFER_PAGES == 1 || oip + size <= PAGE_SIZE ) \
- return get_unaligned_le##bits(token->kaddr + oip); \
+ token->kaddr = folio_address(token->eb->folios[idx]); \
+ token->offset = idx << unit_shift; \
+ if (INLINE_EXTENT_BUFFER_PAGES == 1 || oil + size <= unit_size) \
+ return get_unaligned_le##bits(token->kaddr + oil); \
\
- memcpy(lebytes, token->kaddr + oip, part); \
- token->kaddr = page_address(token->eb->pages[idx + 1]); \
- token->offset = (idx + 1) << PAGE_SHIFT; \
+ memcpy(lebytes, token->kaddr + oil, part); \
+ token->kaddr = folio_address(token->eb->folios[idx + 1]); \
+ token->offset = (idx + 1) << unit_shift; \
memcpy(lebytes + part, token->kaddr, size - part); \
return get_unaligned_le##bits(lebytes); \
} \
@@ -89,19 +91,21 @@ u##bits btrfs_get_##bits(const struct extent_buffer *eb, \
const void *ptr, unsigned long off) \
{ \
const unsigned long member_offset = (unsigned long)ptr + off; \
- const unsigned long oip = get_eb_offset_in_page(eb, member_offset); \
- const unsigned long idx = get_eb_page_index(member_offset); \
- char *kaddr = page_address(eb->pages[idx]); \
+ const unsigned long idx = get_eb_folio_index(eb, member_offset);\
+ const unsigned long oil = get_eb_offset_in_folio(eb, \
+ member_offset);\
+ const int unit_size = folio_size(eb->folios[0]); \
+ char *kaddr = folio_address(eb->folios[idx]); \
const int size = sizeof(u##bits); \
- const int part = PAGE_SIZE - oip; \
+ const int part = unit_size - oil; \
u8 lebytes[sizeof(u##bits)]; \
\
ASSERT(check_setget_bounds(eb, ptr, off, size)); \
- if (INLINE_EXTENT_BUFFER_PAGES == 1 || oip + size <= PAGE_SIZE) \
- return get_unaligned_le##bits(kaddr + oip); \
+ if (INLINE_EXTENT_BUFFER_PAGES == 1 || oil + size <= unit_size) \
+ return get_unaligned_le##bits(kaddr + oil); \
\
- memcpy(lebytes, kaddr + oip, part); \
- kaddr = page_address(eb->pages[idx + 1]); \
+ memcpy(lebytes, kaddr + oil, part); \
+ kaddr = folio_address(eb->folios[idx + 1]); \
memcpy(lebytes + part, kaddr, size - part); \
return get_unaligned_le##bits(lebytes); \
} \
@@ -110,53 +114,59 @@ void btrfs_set_token_##bits(struct btrfs_map_token *token, \
u##bits val) \
{ \
const unsigned long member_offset = (unsigned long)ptr + off; \
- const unsigned long idx = get_eb_page_index(member_offset); \
- const unsigned long oip = get_eb_offset_in_page(token->eb, \
- member_offset); \
+ const unsigned long idx = get_eb_folio_index(token->eb, member_offset); \
+ const unsigned long oil = get_eb_offset_in_folio(token->eb, \
+ member_offset);\
+ const int unit_size = folio_size(token->eb->folios[0]); \
+ const int unit_shift = folio_shift(token->eb->folios[0]); \
const int size = sizeof(u##bits); \
u8 lebytes[sizeof(u##bits)]; \
- const int part = PAGE_SIZE - oip; \
+ const int part = unit_size - oil; \
\
ASSERT(token); \
ASSERT(token->kaddr); \
ASSERT(check_setget_bounds(token->eb, ptr, off, size)); \
if (token->offset <= member_offset && \
- member_offset + size <= token->offset + PAGE_SIZE) { \
- put_unaligned_le##bits(val, token->kaddr + oip); \
+ member_offset + size <= token->offset + unit_size) { \
+ put_unaligned_le##bits(val, token->kaddr + oil); \
return; \
} \
- token->kaddr = page_address(token->eb->pages[idx]); \
- token->offset = idx << PAGE_SHIFT; \
- if (INLINE_EXTENT_BUFFER_PAGES == 1 || oip + size <= PAGE_SIZE) { \
- put_unaligned_le##bits(val, token->kaddr + oip); \
+ token->kaddr = folio_address(token->eb->folios[idx]); \
+ token->offset = idx << unit_shift; \
+ if (INLINE_EXTENT_BUFFER_PAGES == 1 || \
+ oil + size <= unit_size) { \
+ put_unaligned_le##bits(val, token->kaddr + oil); \
return; \
} \
put_unaligned_le##bits(val, lebytes); \
- memcpy(token->kaddr + oip, lebytes, part); \
- token->kaddr = page_address(token->eb->pages[idx + 1]); \
- token->offset = (idx + 1) << PAGE_SHIFT; \
+ memcpy(token->kaddr + oil, lebytes, part); \
+ token->kaddr = folio_address(token->eb->folios[idx + 1]); \
+ token->offset = (idx + 1) << unit_shift; \
memcpy(token->kaddr, lebytes + part, size - part); \
} \
void btrfs_set_##bits(const struct extent_buffer *eb, void *ptr, \
unsigned long off, u##bits val) \
{ \
const unsigned long member_offset = (unsigned long)ptr + off; \
- const unsigned long oip = get_eb_offset_in_page(eb, member_offset); \
- const unsigned long idx = get_eb_page_index(member_offset); \
- char *kaddr = page_address(eb->pages[idx]); \
+ const unsigned long idx = get_eb_folio_index(eb, member_offset);\
+ const unsigned long oil = get_eb_offset_in_folio(eb, \
+ member_offset);\
+ const int unit_size = folio_size(eb->folios[0]); \
+ char *kaddr = folio_address(eb->folios[idx]); \
const int size = sizeof(u##bits); \
- const int part = PAGE_SIZE - oip; \
+ const int part = unit_size - oil; \
u8 lebytes[sizeof(u##bits)]; \
\
ASSERT(check_setget_bounds(eb, ptr, off, size)); \
- if (INLINE_EXTENT_BUFFER_PAGES == 1 || oip + size <= PAGE_SIZE) { \
- put_unaligned_le##bits(val, kaddr + oip); \
+ if (INLINE_EXTENT_BUFFER_PAGES == 1 || \
+ oil + size <= unit_size) { \
+ put_unaligned_le##bits(val, kaddr + oil); \
return; \
} \
\
put_unaligned_le##bits(val, lebytes); \
- memcpy(kaddr + oip, lebytes, part); \
- kaddr = page_address(eb->pages[idx + 1]); \
+ memcpy(kaddr + oil, lebytes, part); \
+ kaddr = folio_address(eb->folios[idx + 1]); \
memcpy(kaddr, lebytes + part, size - part); \
}
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