ocfs2: Add dir_resv_level mount option
The default behavior for directory reservations stays the same, but we add a
mount option so people can tweak the size of directory reservations
according to their workloads.
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 8563f97..6c9a28a 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -2977,7 +2977,8 @@
* if we only get one now, that's enough to continue. The rest
* will be claimed after the conversion to extents.
*/
- data_ac->ac_resv = &oi->ip_la_data_resv;
+ if (ocfs2_dir_resv_allowed(osb))
+ data_ac->ac_resv = &oi->ip_la_data_resv;
ret = ocfs2_claim_clusters(osb, handle, data_ac, 1, &bit_off, &len);
if (ret) {
mlog_errno(ret);
@@ -3348,7 +3349,8 @@
goto bail;
}
- data_ac->ac_resv = &OCFS2_I(dir)->ip_la_data_resv;
+ if (ocfs2_dir_resv_allowed(osb))
+ data_ac->ac_resv = &OCFS2_I(dir)->ip_la_data_resv;
credits = ocfs2_calc_extend_credits(sb, el, 1);
} else {