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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-30 01:15:32 +0400 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-30 01:15:32 +0400 |
| commit | 19bf7f8ac3f8131100027281c495dbbe00cd5ae0 (patch) | |
| tree | 270b97e3ca47c0f62a1babca2ae37f79a76a309c /fs/btrfs/extent_io.h | |
| parent | 787c57c0fb393fe8a3974d300ddcfe30373386fe (diff) | |
| parent | 35fd3dc58da675d659513384221349ef90749a01 (diff) | |
| download | linux-19bf7f8ac3f8131100027281c495dbbe00cd5ae0.tar.xz | |
Merge remote-tracking branch 'master' into queue
Merge reason: development work has dependency on kvm patches merged
upstream.
Conflicts:
arch/powerpc/include/asm/Kbuild
arch/powerpc/include/asm/kvm_para.h
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 25900af5b15d..711d12b80028 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -27,6 +27,7 @@ * type for this bio */ #define EXTENT_BIO_COMPRESSED 1 +#define EXTENT_BIO_TREE_LOG 2 #define EXTENT_BIO_FLAG_SHIFT 16 /* these are bit numbers for test/set bit */ @@ -232,11 +233,15 @@ int set_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end, int clear_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end, gfp_t mask); int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, - int bits, int clear_bits, gfp_t mask); + int bits, int clear_bits, + struct extent_state **cached_state, gfp_t mask); int set_extent_delalloc(struct extent_io_tree *tree, u64 start, u64 end, struct extent_state **cached_state, gfp_t mask); +int set_extent_defrag(struct extent_io_tree *tree, u64 start, u64 end, + struct extent_state **cached_state, gfp_t mask); int find_first_extent_bit(struct extent_io_tree *tree, u64 start, - u64 *start_ret, u64 *end_ret, int bits); + u64 *start_ret, u64 *end_ret, int bits, + struct extent_state **cached_state); struct extent_state *find_first_extent_bit_state(struct extent_io_tree *tree, u64 start, int bits); int extent_invalidatepage(struct extent_io_tree *tree, @@ -277,8 +282,18 @@ void free_extent_buffer_stale(struct extent_buffer *eb); int read_extent_buffer_pages(struct extent_io_tree *tree, struct extent_buffer *eb, u64 start, int wait, get_extent_t *get_extent, int mirror_num); -unsigned long num_extent_pages(u64 start, u64 len); -struct page *extent_buffer_page(struct extent_buffer *eb, unsigned long i); + +static inline unsigned long num_extent_pages(u64 start, u64 len) +{ + return ((start + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT) - + (start >> PAGE_CACHE_SHIFT); +} + +static inline struct page *extent_buffer_page(struct extent_buffer *eb, + unsigned long i) +{ + return eb->pages[i]; +} static inline void extent_buffer_get(struct extent_buffer *eb) { |