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| author | NeilBrown <neilb@suse.com> | 2018-04-12 07:54:48 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-23 15:07:41 +0200 |
| commit | 55161065d05d99a800bdac5bed3365daa93ecd62 (patch) | |
| tree | 6029c9c715f8d84dd6e315688b1ca267eb19c3e6 /drivers/staging/lustre/lustre/include/obd.h | |
| parent | 4206c444e4a89dae9f67f08d9c29d58c37c960cd (diff) | |
| download | op-kernel-dev-55161065d05d99a800bdac5bed3365daa93ecd62.zip op-kernel-dev-55161065d05d99a800bdac5bed3365daa93ecd62.tar.gz | |
staging: lustre: convert osc_quota hash to rhashtable
As this is indexed by an integer, an extensible array
or extensible bitmap would be better.
If/when xarray lands, we should change to use that.
For now, just a simple conversion to rhashtable.
When removing an entry, we need to hold rcu_read_lock()
across the lookup and remove in case we race with another thread
performing a removal. This means we need to use call_rcu()
to free the quota info so we need an rcu_head in there, which
unfortunately doubles the size of the structure.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/lustre/include/obd.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/include/obd.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index 0d0420e..fe21987 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -333,7 +333,7 @@ struct client_obd { void *cl_writeback_work; void *cl_lru_work; /* hash tables for osc_quota_info */ - struct cfs_hash *cl_quota_hash[MAXQUOTAS]; + struct rhashtable cl_quota_hash[MAXQUOTAS]; }; #define obd2cli_tgt(obd) ((char *)(obd)->u.cli.cl_target_uuid.uuid) |
