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Illumos 5314 - Remove "dbuf phys" db->db_data pointer aliases in ZFS

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5314 Remove "dbuf phys" db->db_data pointer aliases in ZFS
Author: Justin T. Gibbs <justing@spectralogic.com>
Reviewed by: Andriy Gapon <avg@freebsd.org>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Will Andrews <willa@spectralogic.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/5314
  https://github.com/illumos/illumos-gate/commit/c137962

Ported-by: Chris Dunlop <chris@onthe.net.au>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Justin T. Gibbs
2015-04-02 02:14:34 +11:00
committed by Brian Behlendorf
parent 945dd93525
commit d683ddbb72
32 changed files with 914 additions and 808 deletions
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include/sys/dsl_dir.h
+9 -2
View File
@@ -86,10 +86,11 @@ typedef struct dsl_dir_phys {
struct dsl_dir {
/* These are immutable; no lock needed: */
uint64_t dd_object;
dsl_dir_phys_t *dd_phys;
dmu_buf_t *dd_dbuf;
dsl_pool_t *dd_pool;
/* Stable until user eviction; no lock needed: */
dmu_buf_t *dd_dbuf;
/* protected by lock on pool's dp_dirty_dirs list */
txg_node_t dd_dirty_link;
@@ -111,6 +112,12 @@ struct dsl_dir {
char dd_myname[MAXNAMELEN];
};
static inline dsl_dir_phys_t *
dsl_dir_phys(dsl_dir_t *dd)
{
return (dd->dd_dbuf->db_data);
}
void dsl_dir_rele(dsl_dir_t *dd, void *tag);
int dsl_dir_hold(dsl_pool_t *dp, const char *name, void *tag,
dsl_dir_t **, const char **tail);