From d6d7b702a3a1ca50f7ca2bebaa79c80425156bac Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Wed, 12 Nov 2008 16:49:48 -0600
Subject: [PATCH] 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>
---
fs/dlm/lowcomms.c | 1 +
fs/dlm/memory.c | 6 +++---
fs/dlm/midcomms.c | 2 +-
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 3962262f991a..1e720316300b 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -295,6 +295,7 @@ static int add_sock(struct socket *sock, struct connection *con)
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 54c14c6d06cb..c1775b84ebab 100644
--- a/fs/dlm/memory.c
+++ b/fs/dlm/memory.c
@@ -39,7 +39,7 @@ char *dlm_allocate_lvb(struct dlm_ls *ls)
{
char *p;
- p = kzalloc(ls->ls_lvblen, GFP_KERNEL);
+ p = kzalloc(ls->ls_lvblen, ls->ls_allocation);
return p;
}
@@ -57,7 +57,7 @@ struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls, int namelen)
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 *dlm_allocate_lkb(struct dlm_ls *ls)
{
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 07ac709f3ed7..f3396c622aec 100644
--- a/fs/dlm/midcomms.c
+++ b/fs/dlm/midcomms.c
@@ -112,7 +112,7 @@ int dlm_process_incoming_buffer(int nodeid, const void *base,
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;
}
--
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