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fs: dlm: allow create lkb with specific id range

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This patch adds functionality to add a lkb with a specific id range.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring 2021-11-02 15:17:21 -04:00 committed by David Teigland
parent 9af5b8f0ea
commit 75d25ffe38
1 changed files with 8 additions and 2 deletions
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10
fs/dlm/lock.c
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@ -1180,7 +1180,8 @@ static void detach_lkb(struct dlm_lkb *lkb)
}
}
static int create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret)
static int _create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret,
int start, int end)
{
struct dlm_lkb *lkb;
int rv;
@ -1201,7 +1202,7 @@ static int create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret)
idr_preload(GFP_NOFS);
spin_lock(&ls->ls_lkbidr_spin);
rv = idr_alloc(&ls->ls_lkbidr, lkb, 1, 0, GFP_NOWAIT);
rv = idr_alloc(&ls->ls_lkbidr, lkb, start, end, GFP_NOWAIT);
if (rv >= 0)
lkb->lkb_id = rv;
spin_unlock(&ls->ls_lkbidr_spin);
@ -1217,6 +1218,11 @@ static int create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret)
return 0;
}
static int create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret)
{
return _create_lkb(ls, lkb_ret, 1, 0);
}
static int find_lkb(struct dlm_ls *ls, uint32_t lkid, struct dlm_lkb **lkb_ret)
{
struct dlm_lkb *lkb;