Commit 75d25ffe authored by Alexander Aring's avatar Alexander Aring Committed by David Teigland
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fs: dlm: allow create lkb with specific id range 



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

Signed-off-by: default avatarAlexander Aring <aahringo@redhat.com>
Signed-off-by: default avatarDavid Teigland <teigland@redhat.com>
parent 9af5b8f0

fs/dlm/lock.c

+8 −2
Original line number Diff line number Diff line
@@ -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;