Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=44f487a5536a3afd96a9f571de24c36559e9ae82
Commit: 44f487a5536a3afd96a9f571de24c36559e9ae82
Parent: 292e539e9386823df8aab556f3da09667f78da8c
Author: Patrick Caulfield <[EMAIL PROTECTED]>
AuthorDate: Wed Jun 6 09:21:22 2007 -0500
Committer: Steven Whitehouse <[EMAIL PROTECTED]>
CommitDate: Mon Jul 9 08:23:17 2007 +0100
[DLM] variable allocation
Add a new flag, DLM_LSFL_FS, to be used when a file system creates a
lockspace.
This flag causes the dlm to use GFP_NOFS for allocations instead of
GFP_KERNEL.
(This updated version of the patch uses gfp_t for ls_allocation.)
Signed-Off-By: Patrick Caulfield <[EMAIL PROTECTED]>
Signed-Off-By: David Teigland <[EMAIL PROTECTED]>
Signed-off-by: Steven Whitehouse <[EMAIL PROTECTED]>
---
fs/dlm/dlm_internal.h | 1 +
fs/dlm/lock.c | 2 +-
fs/dlm/lockspace.c | 5 +++++
fs/dlm/rcom.c | 9 +++++----
fs/gfs2/locking/dlm/mount.c | 2 +-
include/linux/dlm.h | 1 +
6 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index f2c8549..8ac0818 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -463,6 +463,7 @@ struct dlm_ls {
int ls_low_nodeid;
int ls_total_weight;
int *ls_node_array;
+ gfp_t ls_allocation;
struct dlm_rsb ls_stub_rsb; /* for returning errors */
struct dlm_lkb ls_stub_lkb; /* for returning errors */
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index de943af..b455919 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -2594,7 +2594,7 @@ static int _create_message(struct dlm_ls *ls, int mb_len,
pass into lowcomms_commit and a message buffer (mb) that we
write our data into */
- mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, GFP_KERNEL, &mb);
+ mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, ls->ls_allocation, &mb);
if (!mh)
return -ENOBUFS;
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index c8f0c15..6802653 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -444,6 +444,11 @@ static int new_lockspace(char *name, int namelen, void
**lockspace,
set_bit(LSFL_TIMEWARN, &ls->ls_flags);
ls->ls_exflags = (flags & ~DLM_LSFL_TIMEWARN);
+ if (flags & DLM_LSFL_FS)
+ ls->ls_allocation = GFP_NOFS;
+ else
+ ls->ls_allocation = GFP_KERNEL;
+
size = dlm_config.ci_rsbtbl_size;
ls->ls_rsbtbl_size = size;
diff --git a/fs/dlm/rcom.c b/fs/dlm/rcom.c
index f71c235..e3a1527 100644
--- a/fs/dlm/rcom.c
+++ b/fs/dlm/rcom.c
@@ -38,7 +38,7 @@ static int create_rcom(struct dlm_ls *ls, int to_nodeid, int
type, int len,
char *mb;
int mb_len = sizeof(struct dlm_rcom) + len;
- mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, GFP_KERNEL, &mb);
+ mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, ls->ls_allocation, &mb);
if (!mh) {
log_print("create_rcom to %d type %d len %d ENOBUFS",
to_nodeid, type, len);
@@ -386,7 +386,8 @@ static void receive_rcom_lock_reply(struct dlm_ls *ls,
struct dlm_rcom *rc_in)
dlm_recover_process_copy(ls, rc_in);
}
-static int send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in)
+static int send_ls_not_ready(struct dlm_ls *ls, int nodeid,
+ struct dlm_rcom *rc_in)
{
struct dlm_rcom *rc;
struct rcom_config *rf;
@@ -394,7 +395,7 @@ static int send_ls_not_ready(int nodeid, struct dlm_rcom
*rc_in)
char *mb;
int mb_len = sizeof(struct dlm_rcom) + sizeof(struct rcom_config);
- mh = dlm_lowcomms_get_buffer(nodeid, mb_len, GFP_KERNEL, &mb);
+ mh = dlm_lowcomms_get_buffer(nodeid, mb_len, ls->ls_allocation, &mb);
if (!mh)
return -ENOBUFS;
memset(mb, 0, mb_len);
@@ -464,7 +465,7 @@ void dlm_receive_rcom(struct dlm_header *hd, int nodeid)
log_print("lockspace %x from %d type %x not found",
hd->h_lockspace, nodeid, rc->rc_type);
if (rc->rc_type == DLM_RCOM_STATUS)
- send_ls_not_ready(nodeid, rc);
+ send_ls_not_ready(ls, nodeid, rc);
return;
}
diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c
index 1d8faa3..41c5b04 100644
--- a/fs/gfs2/locking/dlm/mount.c
+++ b/fs/gfs2/locking/dlm/mount.c
@@ -147,7 +147,7 @@ static int gdlm_mount(char *table_name, char *host_data,
error = dlm_new_lockspace(ls->fsname, strlen(ls->fsname),
&ls->dlm_lockspace,
- nodir ? DLM_LSFL_NODIR : 0,
+ DLM_LSFL_FS | (nodir ? DLM_LSFL_NODIR : 0),
GDLM_LVB_SIZE);
if (error) {
log_error("dlm_new_lockspace error %d", error);
diff --git a/include/linux/dlm.h b/include/linux/dlm.h
index 5227a95..be9d278 100644
--- a/include/linux/dlm.h
+++ b/include/linux/dlm.h
@@ -206,6 +206,7 @@ struct dlm_lksb {
#define DLM_LSFL_NODIR 0x00000001
#define DLM_LSFL_TIMEWARN 0x00000002
+#define DLM_LSFL_FS 0x00000004
#ifdef __KERNEL__
-
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