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authorAlexander Aring <aahringo@redhat.com>2021-05-21 22:08:42 +0300
committerDavid Teigland <teigland@redhat.com>2021-05-25 17:22:20 +0300
commit8f2dc78dbc2010b497bb58e0460cb44c678a3c5b (patch)
tree63b4528cf5521cfbf0c5aa085693170223afc634 /fs/dlm/midcomms.c
parenta070a91cf1402b5328d3517d1fccbdeec58d3f2d (diff)
downloadlinux-8f2dc78dbc2010b497bb58e0460cb44c678a3c5b.tar.xz
fs: dlm: make buffer handling per msg
This patch makes the void pointer handle for lowcomms functionality per message and not per page allocation entry. A refcount handling for the handle was added to keep the message alive until the user doesn't need it anymore. There exists now a per message callback which will be called when allocating a new buffer. This callback will be guaranteed to be called according the order of the sending buffer, which can be used that the caller increments a sequence number for the dlm message handle. For transition process we cast the dlm_mhandle to dlm_msg and vice versa until the midcomms layer will implement a specific dlm_mhandle structure. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/midcomms.c')
-rw-r--r--fs/dlm/midcomms.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/dlm/midcomms.c b/fs/dlm/midcomms.c
index 1a280dda99d3..aadb3781bebe 100644
--- a/fs/dlm/midcomms.c
+++ b/fs/dlm/midcomms.c
@@ -31,12 +31,15 @@
struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len,
gfp_t allocation, char **ppc)
{
- return dlm_lowcomms_get_buffer(nodeid, len, allocation, ppc);
+ return (struct dlm_mhandle *)dlm_lowcomms_new_msg(nodeid, len,
+ allocation, ppc,
+ NULL, NULL);
}
void dlm_midcomms_commit_mhandle(struct dlm_mhandle *mh)
{
- dlm_lowcomms_commit_buffer(mh);
+ dlm_lowcomms_commit_msg((struct dlm_msg *)mh);
+ dlm_lowcomms_put_msg((struct dlm_msg *)mh);
}
void dlm_midcomms_add_member(int nodeid) { }