diff options
| author | Pawel Jakub Dawidek <[email protected]> | 2023-04-30 02:47:09 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2023-05-11 16:06:36 -0700 |
| commit | 555ef90c5c1db5dcd1b47c02134c85b5a03dc6bc (patch) | |
| tree | 033bbadea252e0f5fa8a934d863a2e6520b5a5db /include/sys | |
| parent | 469019fb0b2b7ca4bd6c3de5c2f1056a4446f0e3 (diff) | |
Additional block cloning fixes.
Reimplement some of the block cloning vs dbuf logic, mostly to fix
situation where we clone a block and in the same transaction group
we want to partially overwrite the clone.
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Pawel Jakub Dawidek <[email protected]>
Closes #14825
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/dbuf.h | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/include/sys/dbuf.h b/include/sys/dbuf.h index fb26a83b1..1800a7e31 100644 --- a/include/sys/dbuf.h +++ b/include/sys/dbuf.h @@ -61,16 +61,18 @@ extern "C" { /* * The simplified state transition diagram for dbufs looks like: * - * +----> READ ----+ - * | | - * | V - * (alloc)-->UNCACHED CACHED-->EVICTING-->(free) - * | ^ ^ - * | | | - * +----> FILL ----+ | - * | | - * | | - * +--------> NOFILL -------+ + * +--> READ --+ + * | | + * | V + * (alloc)-->UNCACHED CACHED-->EVICTING-->(free) + * ^ | ^ ^ + * | | | | + * | +--> FILL --+ | + * | | | + * | | | + * | +------> NOFILL -----+ + * | | + * +---------------+ * * DB_SEARCH is an invalid state for a dbuf. It is used by dbuf_free_range * to find all dbufs in a range of a dnode and must be less than any other @@ -375,6 +377,7 @@ dmu_buf_impl_t *dbuf_find(struct objset *os, uint64_t object, uint8_t level, uint64_t blkid, uint64_t *hash_out); int dbuf_read(dmu_buf_impl_t *db, zio_t *zio, uint32_t flags); +void dmu_buf_will_clone(dmu_buf_t *db, dmu_tx_t *tx); void dmu_buf_will_not_fill(dmu_buf_t *db, dmu_tx_t *tx); void dmu_buf_will_fill(dmu_buf_t *db, dmu_tx_t *tx); void dmu_buf_fill_done(dmu_buf_t *db, dmu_tx_t *tx); |