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dlm: avoid unnecessary search in search_rsb 

If the rsb is found in the "keep" tree, but is
not the right type (i.e. not MASTER), we can
return immediately with the result.  There's
no point in going on to search the "toss" list
as if we hadn't found it.

Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
David Teigland 2012-04-23 14:08:52 -05:00
parent d6e24788d2
commit 57638bf3aa
1 changed files with 3 additions and 0 deletions
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3
fs/dlm/lock.c
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@ -479,6 +479,9 @@ static int _search_rsb(struct dlm_ls *ls, char *name, int len, int b,
kref_get(&r->res_ref); kref_get(&r->res_ref);
goto out; goto out;
} }
if (error == -ENOTBLK)
goto out;
error = dlm_search_rsb_tree(&ls->ls_rsbtbl[b].toss, name, len, flags, &r); error = dlm_search_rsb_tree(&ls->ls_rsbtbl[b].toss, name, len, flags, &r);
if (error) if (error)
goto out; goto out;