dlm: fix up memory allocation flags
Use ls_allocation for memory allocations, which a cluster fs sets to
GFP_NOFS. Use GFP_NOFS for allocations when no lockspace struct is
available. Taking dlm locks needs to avoid calling back into the
cluster fs because write-out can require taking dlm locks.
Cc: Christine Caulfield <ccaulfie@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 3962262..1e72031 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -295,6 +295,7 @@
con->sock->sk->sk_write_space = lowcomms_write_space;
con->sock->sk->sk_state_change = lowcomms_state_change;
con->sock->sk->sk_user_data = con;
+ con->sock->sk->sk_allocation = GFP_NOFS;
return 0;
}
diff --git a/fs/dlm/memory.c b/fs/dlm/memory.c
index 54c14c6..c1775b8 100644
--- a/fs/dlm/memory.c
+++ b/fs/dlm/memory.c
@@ -39,7 +39,7 @@
{
char *p;
- p = kzalloc(ls->ls_lvblen, GFP_KERNEL);
+ p = kzalloc(ls->ls_lvblen, ls->ls_allocation);
return p;
}
@@ -57,7 +57,7 @@
DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN,);
- r = kzalloc(sizeof(*r) + namelen, GFP_KERNEL);
+ r = kzalloc(sizeof(*r) + namelen, ls->ls_allocation);
return r;
}
@@ -72,7 +72,7 @@
{
struct dlm_lkb *lkb;
- lkb = kmem_cache_zalloc(lkb_cache, GFP_KERNEL);
+ lkb = kmem_cache_zalloc(lkb_cache, ls->ls_allocation);
return lkb;
}
diff --git a/fs/dlm/midcomms.c b/fs/dlm/midcomms.c
index 07ac709..f3396c6 100644
--- a/fs/dlm/midcomms.c
+++ b/fs/dlm/midcomms.c
@@ -112,7 +112,7 @@
ordinary messages). */
if (msglen > sizeof(__tmp) && p == &__tmp.p) {
- p = kmalloc(dlm_config.ci_buffer_size, GFP_KERNEL);
+ p = kmalloc(dlm_config.ci_buffer_size, GFP_NOFS);
if (p == NULL)
return ret;
}