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| author | Nicholas Swenson <nks@daterainc.com> | 2013-11-12 07:36:25 +0400 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2014-01-09 01:05:14 +0400 |
| commit | 3bdad1e40d11aad31f2322f21e943c31ef20d9da (patch) | |
| tree | 2b268d6b0944b97338d3b7a190443551b565e562 /drivers/md/bcache/bset.h | |
| parent | 0f49cf3d83fbf038534c9302095b66b07b9838c3 (diff) | |
| download | linux-3bdad1e40d11aad31f2322f21e943c31ef20d9da.tar.xz | |
bcache: Add bch_bkey_equal_header()
Checks if two keys have equivalent header fields.
(good enough for replacement or merging)
Used in bch_bkey_try_merge, and replacing a key
in the btree.
Signed-off-by: Nicholas Swenson <nks@daterainc.com>
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'drivers/md/bcache/bset.h')
| -rw-r--r-- | drivers/md/bcache/bset.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h index 487373057c09..003260f4ddf6 100644 --- a/drivers/md/bcache/bset.h +++ b/drivers/md/bcache/bset.h @@ -448,6 +448,14 @@ static inline void bch_bkey_to_text(struct btree_keys *b, char *buf, return b->ops->key_to_text(buf, size, k); } +static inline bool bch_bkey_equal_header(const struct bkey *l, + const struct bkey *r) +{ + return (KEY_DIRTY(l) == KEY_DIRTY(r) && + KEY_PTRS(l) == KEY_PTRS(r) && + KEY_CSUM(l) == KEY_CSUM(l)); +} + /* Keylists */ struct keylist { |