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fs: dlm: use GFP_ZERO for page buffer

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This patch uses GFP_ZERO for allocate a page for the internal dlm
sending buffer allocator instead of calling memset zero after every
allocation. An already allocated space will never be reused again.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring 2021-03-01 17:05:15 -05:00 committed by David Teigland
parent c45674fbdd
commit e1a7cbce53
3 changed files with 1 additions and 5 deletions
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2
fs/dlm/lock.c
View File

@ -3541,8 +3541,6 @@ static int _create_message(struct dlm_ls *ls, int mb_len,
if (!mh)
return -ENOBUFS;
memset(mb, 0, mb_len);
ms = (struct dlm_message *) mb;
ms->m_header.h_version = (DLM_HEADER_MAJOR | DLM_HEADER_MINOR);

2
fs/dlm/lowcomms.c
View File

@ -1355,7 +1355,7 @@ static struct writequeue_entry *new_writequeue_entry(struct connection *con,
if (!entry)
return NULL;
entry->page = alloc_page(allocation);
entry->page = alloc_page(allocation | __GFP_ZERO);
if (!entry->page) {
kfree(entry);
return NULL;

2
fs/dlm/rcom.c
View File

@ -41,7 +41,6 @@ static int create_rcom(struct dlm_ls *ls, int to_nodeid, int type, int len,
to_nodeid, type, len);
return -ENOBUFS;
}
memset(mb, 0, mb_len);
rc = (struct dlm_rcom *) mb;
@ -462,7 +461,6 @@ int dlm_send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in)
mh = dlm_lowcomms_get_buffer(nodeid, mb_len, GFP_NOFS, &mb);
if (!mh)
return -ENOBUFS;
memset(mb, 0, mb_len);
rc = (struct dlm_rcom *) mb;