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dlm: switch to GFP_ATOMIC in dlm allocations

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Replace GFP_NOFS with GFP_ATOMIC.  Also stop using idr_preload which
uses a non-bh spin_lock.  This is further preparation for softirq
message processing.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring 2024-04-02 15:17:58 -04:00 committed by David Teigland
parent 98808644b9
commit 455597a55f
4 changed files with 4 additions and 8 deletions
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2
fs/dlm/lock.c
View file

@ -1206,13 +1206,11 @@ static int _create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret,
INIT_LIST_HEAD(&lkb->lkb_ownqueue);
INIT_LIST_HEAD(&lkb->lkb_rsb_lookup);
idr_preload(GFP_NOFS);
spin_lock(&ls->ls_lkbidr_spin);
rv = idr_alloc(&ls->ls_lkbidr, lkb, start, end, GFP_NOWAIT);
if (rv >= 0)
lkb->lkb_id = rv;
spin_unlock(&ls->ls_lkbidr_spin);
idr_preload_end();
if (rv < 0) {
log_error(ls, "create_lkb idr error %d", rv);

6
fs/dlm/memory.c
View file

@ -84,7 +84,7 @@ char *dlm_allocate_lvb(struct dlm_ls *ls)
{
char *p;
p = kzalloc(ls->ls_lvblen, GFP_NOFS);
p = kzalloc(ls->ls_lvblen, GFP_ATOMIC);
return p;
}
@ -97,7 +97,7 @@ struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls)
{
struct dlm_rsb *r;
r = kmem_cache_zalloc(rsb_cache, GFP_NOFS);
r = kmem_cache_zalloc(rsb_cache, GFP_ATOMIC);
return r;
}
@ -112,7 +112,7 @@ struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls)
{
struct dlm_lkb *lkb;
lkb = kmem_cache_zalloc(lkb_cache, GFP_NOFS);
lkb = kmem_cache_zalloc(lkb_cache, GFP_ATOMIC);
return lkb;
}

2
fs/dlm/recover.c
View file

@ -310,7 +310,6 @@ static int recover_idr_add(struct dlm_rsb *r)
struct dlm_ls *ls = r->res_ls;
int rv;
idr_preload(GFP_NOFS);
spin_lock(&ls->ls_recover_idr_lock);
if (r->res_id) {
rv = -1;
@ -326,7 +325,6 @@ static int recover_idr_add(struct dlm_rsb *r)
rv = 0;
out_unlock:
spin_unlock(&ls->ls_recover_idr_lock);
idr_preload_end();
return rv;
}

2
fs/dlm/requestqueue.c
View file

@ -37,7 +37,7 @@ void dlm_add_requestqueue(struct dlm_ls *ls, int nodeid,
int length = le16_to_cpu(ms->m_header.h_length) -
sizeof(struct dlm_message);
e = kmalloc(sizeof(struct rq_entry) + length, GFP_NOFS);
e = kmalloc(sizeof(struct rq_entry) + length, GFP_ATOMIC);
if (!e) {
log_print("dlm_add_requestqueue: out of memory len %d", length);
return;