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dlm: remove allocation parameter in msg allocation

Browse source 
Remove the context parameter for message allocations and
always use GFP_ATOMIC. This prepares 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 15:17:57 -04:00 committed by David Teigland
parent ca0dcef7cf
commit 98808644b9
8 changed files with 41 additions and 57 deletions
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31
fs/dlm/lock.c
View file

@ -3330,8 +3330,7 @@ int dlm_unlock(dlm_lockspace_t *lockspace,
static int _create_message(struct dlm_ls *ls, int mb_len,
int to_nodeid, int mstype,
struct dlm_message **ms_ret,
struct dlm_mhandle **mh_ret,
gfp_t allocation)
struct dlm_mhandle **mh_ret)
{
struct dlm_message *ms;
struct dlm_mhandle *mh;
@ -3341,7 +3340,7 @@ static int _create_message(struct dlm_ls *ls, int mb_len,
pass into midcomms_commit and a message buffer (mb) that we
write our data into */
mh = dlm_midcomms_get_mhandle(to_nodeid, mb_len, allocation, &mb);
mh = dlm_midcomms_get_mhandle(to_nodeid, mb_len, &mb);
if (!mh)
return -ENOBUFS;
@ -3363,8 +3362,7 @@ static int _create_message(struct dlm_ls *ls, int mb_len,
static int create_message(struct dlm_rsb *r, struct dlm_lkb *lkb,
int to_nodeid, int mstype,
struct dlm_message **ms_ret,
struct dlm_mhandle **mh_ret,
gfp_t allocation)
struct dlm_mhandle **mh_ret)
{
int mb_len = sizeof(struct dlm_message);
@ -3385,7 +3383,7 @@ static int create_message(struct dlm_rsb *r, struct dlm_lkb *lkb,
}
return _create_message(r->res_ls, mb_len, to_nodeid, mstype,
ms_ret, mh_ret, allocation);
ms_ret, mh_ret);
}
/* further lowcomms enhancements or alternate implementations may make
@ -3454,7 +3452,7 @@ static int send_common(struct dlm_rsb *r, struct dlm_lkb *lkb, int mstype)
if (error)
return error;
error = create_message(r, lkb, to_nodeid, mstype, &ms, &mh, GFP_NOFS);
error = create_message(r, lkb, to_nodeid, mstype, &ms, &mh);
if (error)
goto fail;
@ -3514,8 +3512,7 @@ static int send_grant(struct dlm_rsb *r, struct dlm_lkb *lkb)
to_nodeid = lkb->lkb_nodeid;
error = create_message(r, lkb, to_nodeid, DLM_MSG_GRANT, &ms, &mh,
GFP_NOFS);
error = create_message(r, lkb, to_nodeid, DLM_MSG_GRANT, &ms, &mh);
if (error)
goto out;
@ -3536,8 +3533,7 @@ static int send_bast(struct dlm_rsb *r, struct dlm_lkb *lkb, int mode)
to_nodeid = lkb->lkb_nodeid;
error = create_message(r, NULL, to_nodeid, DLM_MSG_BAST, &ms, &mh,
GFP_NOFS);
error = create_message(r, NULL, to_nodeid, DLM_MSG_BAST, &ms, &mh);
if (error)
goto out;
@ -3562,8 +3558,7 @@ static int send_lookup(struct dlm_rsb *r, struct dlm_lkb *lkb)
if (error)
return error;
error = create_message(r, NULL, to_nodeid, DLM_MSG_LOOKUP, &ms, &mh,
GFP_NOFS);
error = create_message(r, NULL, to_nodeid, DLM_MSG_LOOKUP, &ms, &mh);
if (error)
goto fail;
@ -3587,8 +3582,7 @@ static int send_remove(struct dlm_rsb *r)
to_nodeid = dlm_dir_nodeid(r);
error = create_message(r, NULL, to_nodeid, DLM_MSG_REMOVE, &ms, &mh,
GFP_ATOMIC);
error = create_message(r, NULL, to_nodeid, DLM_MSG_REMOVE, &ms, &mh);
if (error)
goto out;
@ -3609,7 +3603,7 @@ static int send_common_reply(struct dlm_rsb *r, struct dlm_lkb *lkb,
to_nodeid = lkb->lkb_nodeid;
error = create_message(r, lkb, to_nodeid, mstype, &ms, &mh, GFP_NOFS);
error = create_message(r, lkb, to_nodeid, mstype, &ms, &mh);
if (error)
goto out;
@ -3651,8 +3645,7 @@ static int send_lookup_reply(struct dlm_ls *ls,
struct dlm_mhandle *mh;
int error, nodeid = le32_to_cpu(ms_in->m_header.h_nodeid);
error = create_message(r, NULL, nodeid, DLM_MSG_LOOKUP_REPLY, &ms, &mh,
GFP_NOFS);
error = create_message(r, NULL, nodeid, DLM_MSG_LOOKUP_REPLY, &ms, &mh);
if (error)
goto out;
@ -6103,7 +6096,7 @@ static int send_purge(struct dlm_ls *ls, int nodeid, int pid)
int error;
error = _create_message(ls, sizeof(struct dlm_message), nodeid,
DLM_MSG_PURGE, &ms, &mh, GFP_NOFS);
DLM_MSG_PURGE, &ms, &mh);
if (error)
return error;
ms->m_nodeid = cpu_to_le32(nodeid);

16
fs/dlm/lowcomms.c
View file

@ -1229,14 +1229,13 @@ static struct writequeue_entry *new_wq_entry(struct connection *con, int len,
};
static struct dlm_msg *dlm_lowcomms_new_msg_con(struct connection *con, int len,
gfp_t allocation, char **ppc,
void (*cb)(void *data),
char **ppc, void (*cb)(void *data),
void *data)
{
struct writequeue_entry *e;
struct dlm_msg *msg;
msg = dlm_allocate_msg(allocation);
msg = dlm_allocate_msg();
if (!msg)
return NULL;
@ -1261,9 +1260,8 @@ static struct dlm_msg *dlm_lowcomms_new_msg_con(struct connection *con, int len,
* dlm_lowcomms_commit_msg which is a must call if success
*/
#ifndef __CHECKER__
struct dlm_msg *dlm_lowcomms_new_msg(int nodeid, int len, gfp_t allocation,
char **ppc, void (*cb)(void *data),
void *data)
struct dlm_msg *dlm_lowcomms_new_msg(int nodeid, int len, char **ppc,
void (*cb)(void *data), void *data)
{
struct connection *con;
struct dlm_msg *msg;
@ -1284,7 +1282,7 @@ struct dlm_msg *dlm_lowcomms_new_msg(int nodeid, int len, gfp_t allocation,
return NULL;
}
msg = dlm_lowcomms_new_msg_con(con, len, allocation, ppc, cb, data);
msg = dlm_lowcomms_new_msg_con(con, len, ppc, cb, data);
if (!msg) {
srcu_read_unlock(&connections_srcu, idx);
return NULL;
@ -1348,8 +1346,8 @@ int dlm_lowcomms_resend_msg(struct dlm_msg *msg)
if (msg->retransmit)
return 1;
msg_resend = dlm_lowcomms_new_msg_con(msg->entry->con, msg->len,
GFP_ATOMIC, &ppc, NULL, NULL);
msg_resend = dlm_lowcomms_new_msg_con(msg->entry->con, msg->len, &ppc,
NULL, NULL);
if (!msg_resend)
return -ENOMEM;

5
fs/dlm/lowcomms.h
View file

@ -39,9 +39,8 @@ void dlm_lowcomms_stop(void);
void dlm_lowcomms_init(void);
void dlm_lowcomms_exit(void);
int dlm_lowcomms_close(int nodeid);
struct dlm_msg *dlm_lowcomms_new_msg(int nodeid, int len, gfp_t allocation,
char **ppc, void (*cb)(void *data),
void *data);
struct dlm_msg *dlm_lowcomms_new_msg(int nodeid, int len, char **ppc,
void (*cb)(void *data), void *data);
void dlm_lowcomms_commit_msg(struct dlm_msg *msg);
void dlm_lowcomms_put_msg(struct dlm_msg *msg);
int dlm_lowcomms_resend_msg(struct dlm_msg *msg);

8
fs/dlm/memory.c
View file

@ -130,9 +130,9 @@ void dlm_free_lkb(struct dlm_lkb *lkb)
kmem_cache_free(lkb_cache, lkb);
}
struct dlm_mhandle *dlm_allocate_mhandle(gfp_t allocation)
struct dlm_mhandle *dlm_allocate_mhandle(void)
{
return kmem_cache_alloc(mhandle_cache, allocation);
return kmem_cache_alloc(mhandle_cache, GFP_ATOMIC);
}
void dlm_free_mhandle(struct dlm_mhandle *mhandle)
@ -150,9 +150,9 @@ void dlm_free_writequeue(struct writequeue_entry *writequeue)
kmem_cache_free(writequeue_cache, writequeue);
}
struct dlm_msg *dlm_allocate_msg(gfp_t allocation)
struct dlm_msg *dlm_allocate_msg(void)
{
return kmem_cache_alloc(msg_cache, allocation);
return kmem_cache_alloc(msg_cache, GFP_ATOMIC);
}
void dlm_free_msg(struct dlm_msg *msg)

4
fs/dlm/memory.h
View file

@ -20,11 +20,11 @@ struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls);
void dlm_free_lkb(struct dlm_lkb *l);
char *dlm_allocate_lvb(struct dlm_ls *ls);
void dlm_free_lvb(char *l);
struct dlm_mhandle *dlm_allocate_mhandle(gfp_t allocation);
struct dlm_mhandle *dlm_allocate_mhandle(void);
void dlm_free_mhandle(struct dlm_mhandle *mhandle);
struct writequeue_entry *dlm_allocate_writequeue(void);
void dlm_free_writequeue(struct writequeue_entry *writequeue);
struct dlm_msg *dlm_allocate_msg(gfp_t allocation);
struct dlm_msg *dlm_allocate_msg(void);
void dlm_free_msg(struct dlm_msg *msg);
struct dlm_callback *dlm_allocate_cb(void);
void dlm_free_cb(struct dlm_callback *cb);

24
fs/dlm/midcomms.c
View file

@ -379,8 +379,7 @@ static int dlm_send_ack(int nodeid, uint32_t seq)
struct dlm_msg *msg;
char *ppc;
msg = dlm_lowcomms_new_msg(nodeid, mb_len, GFP_ATOMIC, &ppc,
NULL, NULL);
msg = dlm_lowcomms_new_msg(nodeid, mb_len, &ppc, NULL, NULL);
if (!msg)
return -ENOMEM;
@ -428,7 +427,7 @@ static int dlm_send_fin(struct midcomms_node *node,
struct dlm_mhandle *mh;
char *ppc;
mh = dlm_midcomms_get_mhandle(node->nodeid, mb_len, GFP_ATOMIC, &ppc);
mh = dlm_midcomms_get_mhandle(node->nodeid, mb_len, &ppc);
if (!mh)
return -ENOMEM;
@ -976,13 +975,13 @@ static void midcomms_new_msg_cb(void *data)
}
static struct dlm_msg *dlm_midcomms_get_msg_3_2(struct dlm_mhandle *mh, int nodeid,
int len, gfp_t allocation, char **ppc)
int len, char **ppc)
{
struct dlm_opts *opts;
struct dlm_msg *msg;
msg = dlm_lowcomms_new_msg(nodeid, len + DLM_MIDCOMMS_OPT_LEN,
allocation, ppc, midcomms_new_msg_cb, mh);
ppc, midcomms_new_msg_cb, mh);
if (!msg)
return NULL;
@ -1001,8 +1000,7 @@ static struct dlm_msg *dlm_midcomms_get_msg_3_2(struct dlm_mhandle *mh, int node
* dlm_midcomms_commit_mhandle which is a must call if success
*/
#ifndef __CHECKER__
struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len,
gfp_t allocation, char **ppc)
struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len, char **ppc)
{
struct midcomms_node *node;
struct dlm_mhandle *mh;
@ -1017,7 +1015,7 @@ struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len,
/* this is a bug, however we going on and hope it will be resolved */
WARN_ON_ONCE(test_bit(DLM_NODE_FLAG_STOP_TX, &node->flags));
mh = dlm_allocate_mhandle(allocation);
mh = dlm_allocate_mhandle();
if (!mh)
goto err;
@ -1028,8 +1026,7 @@ struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len,
switch (node->version) {
case DLM_VERSION_3_1:
msg = dlm_lowcomms_new_msg(nodeid, len, allocation, ppc,
NULL, NULL);
msg = dlm_lowcomms_new_msg(nodeid, len, ppc, NULL, NULL);
if (!msg) {
dlm_free_mhandle(mh);
goto err;
@ -1040,8 +1037,7 @@ struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len,
/* send ack back if necessary */
dlm_send_ack_threshold(node, DLM_SEND_ACK_BACK_MSG_THRESHOLD);
msg = dlm_midcomms_get_msg_3_2(mh, nodeid, len, allocation,
ppc);
msg = dlm_midcomms_get_msg_3_2(mh, nodeid, len, ppc);
if (!msg) {
dlm_free_mhandle(mh);
goto err;
@ -1501,8 +1497,8 @@ int dlm_midcomms_rawmsg_send(struct midcomms_node *node, void *buf,
rd.node = node;
rd.buf = buf;
msg = dlm_lowcomms_new_msg(node->nodeid, buflen, GFP_NOFS,
&msgbuf, midcomms_new_rawmsg_cb, &rd);
msg = dlm_lowcomms_new_msg(node->nodeid, buflen, &msgbuf,
midcomms_new_rawmsg_cb, &rd);
if (!msg)
return -ENOMEM;

3
fs/dlm/midcomms.h
View file

@ -16,8 +16,7 @@ struct midcomms_node;
int dlm_validate_incoming_buffer(int nodeid, unsigned char *buf, int len);
int dlm_process_incoming_buffer(int nodeid, unsigned char *buf, int buflen);
struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len,
gfp_t allocation, char **ppc);
struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len, char **ppc);
void dlm_midcomms_commit_mhandle(struct dlm_mhandle *mh, const void *name,
int namelen);
int dlm_midcomms_addr(int nodeid, struct sockaddr_storage *addr, int len);

7
fs/dlm/rcom.c
View file

@ -55,7 +55,7 @@ static int create_rcom(struct dlm_ls *ls, int to_nodeid, int type, int len,
struct dlm_mhandle *mh;
char *mb;
mh = dlm_midcomms_get_mhandle(to_nodeid, mb_len, GFP_NOFS, &mb);
mh = dlm_midcomms_get_mhandle(to_nodeid, mb_len, &mb);
if (!mh) {
log_print("%s to %d type %d len %d ENOBUFS",
__func__, to_nodeid, type, len);
@ -75,8 +75,7 @@ static int create_rcom_stateless(struct dlm_ls *ls, int to_nodeid, int type,
struct dlm_msg *msg;
char *mb;
msg = dlm_lowcomms_new_msg(to_nodeid, mb_len, GFP_NOFS, &mb,
NULL, NULL);
msg = dlm_lowcomms_new_msg(to_nodeid, mb_len, &mb, NULL, NULL);
if (!msg) {
log_print("create_rcom to %d type %d len %d ENOBUFS",
to_nodeid, type, len);
@ -510,7 +509,7 @@ int dlm_send_ls_not_ready(int nodeid, const struct dlm_rcom *rc_in)
char *mb;
int mb_len = sizeof(struct dlm_rcom) + sizeof(struct rcom_config);
mh = dlm_midcomms_get_mhandle(nodeid, mb_len, GFP_NOFS, &mb);
mh = dlm_midcomms_get_mhandle(nodeid, mb_len, &mb);
if (!mh)
return -ENOBUFS;