Commit e1711fe3 authored by Alexander Aring's avatar Alexander Aring Committed by David Teigland
Browse files

fs: dlm: allow different allocation context per _create_message 



This patch allows to give the use control about the allocation context
based on a per message basis. Currently all messages forced to be
created under GFP_NOFS context.

Signed-off-by: default avatarAlexander Aring <aahringo@redhat.com>
Signed-off-by: default avatarDavid Teigland <teigland@redhat.com>
parent 61bed0ba

fs/dlm/lock.c

+19 −12
Original line number Diff line number Diff line
@@ -3554,7 +3554,8 @@ 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)

			   struct dlm_mhandle **mh_ret,

			   gfp_t allocation)

{

	struct dlm_message *ms;

	struct dlm_mhandle *mh;
@@ -3564,7 +3565,7 @@ 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, GFP_NOFS, &mb);

	mh = dlm_midcomms_get_mhandle(to_nodeid, mb_len, allocation, &mb);

	if (!mh)

		return -ENOBUFS;
@@ -3586,7 +3587,8 @@ 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)

			  struct dlm_mhandle **mh_ret,

			  gfp_t allocation)

{

	int mb_len = sizeof(struct dlm_message);
@@ -3607,7 +3609,7 @@ 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);

			       ms_ret, mh_ret, allocation);

}



/* further lowcomms enhancements or alternate implementations may make
@@ -3676,7 +3678,7 @@ 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);

	error = create_message(r, lkb, to_nodeid, mstype, &ms, &mh, GFP_NOFS);

	if (error)

		goto fail;
@@ -3737,7 +3739,8 @@ 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);

	error = create_message(r, lkb, to_nodeid, DLM_MSG_GRANT, &ms, &mh,

			       GFP_NOFS);

	if (error)

		goto out;
@@ -3758,7 +3761,8 @@ 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);

	error = create_message(r, NULL, to_nodeid, DLM_MSG_BAST, &ms, &mh,

			       GFP_NOFS);

	if (error)

		goto out;
@@ -3783,7 +3787,8 @@ 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);

	error = create_message(r, NULL, to_nodeid, DLM_MSG_LOOKUP, &ms, &mh,

			       GFP_NOFS);

	if (error)

		goto fail;
@@ -3807,7 +3812,8 @@ 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);

	error = create_message(r, NULL, to_nodeid, DLM_MSG_REMOVE, &ms, &mh,

			       GFP_NOFS);

	if (error)

		goto out;
@@ -3828,7 +3834,7 @@ 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);

	error = create_message(r, lkb, to_nodeid, mstype, &ms, &mh, GFP_NOFS);

	if (error)

		goto out;
@@ -3869,7 +3875,8 @@ static int send_lookup_reply(struct dlm_ls *ls, struct dlm_message *ms_in, 
	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);

	error = create_message(r, NULL, nodeid, DLM_MSG_LOOKUP_REPLY, &ms, &mh,

			       GFP_NOFS);

	if (error)

		goto out;
@@ -6295,7 +6302,7 @@ 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);

				DLM_MSG_PURGE, &ms, &mh, GFP_NOFS);

	if (error)

		return error;

	ms->m_nodeid = cpu_to_le32(nodeid);

fs/dlm/memory.c

+2 −2
Original line number Diff line number Diff line
@@ -134,9 +134,9 @@ void dlm_free_lkb(struct dlm_lkb *lkb) 
	kmem_cache_free(lkb_cache, lkb);

}



struct dlm_mhandle *dlm_allocate_mhandle(void)

struct dlm_mhandle *dlm_allocate_mhandle(gfp_t allocation)

{

	return kmem_cache_alloc(mhandle_cache, GFP_NOFS);

	return kmem_cache_alloc(mhandle_cache, allocation);

}



void dlm_free_mhandle(struct dlm_mhandle *mhandle)

fs/dlm/memory.h

+1 −1
Original line number Diff line number Diff line
@@ -20,7 +20,7 @@ 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(void);

struct dlm_mhandle *dlm_allocate_mhandle(gfp_t allocation);

void dlm_free_mhandle(struct dlm_mhandle *mhandle);

struct writequeue_entry *dlm_allocate_writequeue(void);

void dlm_free_writequeue(struct writequeue_entry *writequeue);

fs/dlm/midcomms.c

+1 −1
Original line number Diff line number Diff line
@@ -1097,7 +1097,7 @@ 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(test_bit(DLM_NODE_FLAG_STOP_TX, &node->flags));



	mh = dlm_allocate_mhandle();

	mh = dlm_allocate_mhandle(allocation);

	if (!mh)

		goto err;