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NFS/pNFS: Allow O_DIRECT to release the DS commitinfo

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Add a pNFS callback to allow the O_DIRECT code to release the DS
commitinfo when freeing the dreq.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2020-03-20 17:08:02 -04:00
parent 0cb1f6df8a
commit 18f4129696
2 changed files with 17 additions and 0 deletions
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1
fs/nfs/direct.c
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@ -317,6 +317,7 @@ static void nfs_direct_req_free(struct kref *kref)
{
struct nfs_direct_req *dreq = container_of(kref, struct nfs_direct_req, kref);
pnfs_release_ds_info(&dreq->ds_cinfo, dreq->inode);
nfs_free_pnfs_ds_cinfo(&dreq->ds_cinfo);
if (dreq->l_ctx != NULL)
nfs_put_lock_context(dreq->l_ctx);

16
fs/nfs/pnfs.h
View File

@ -149,6 +149,8 @@ struct pnfs_layoutdriver_type {
const struct nfs_pageio_ops *pg_write_ops;
struct pnfs_ds_commit_info *(*get_ds_info) (struct inode *inode);
void (*release_ds_info)(struct pnfs_ds_commit_info *,
struct inode *inode);
void (*mark_request_commit) (struct nfs_page *req,
struct pnfs_layout_segment *lseg,
struct nfs_commit_info *cinfo,
@ -468,6 +470,15 @@ pnfs_init_ds_commit_info(struct pnfs_ds_commit_info *fl_cinfo)
INIT_LIST_HEAD(&fl_cinfo->commits);
}
static inline void
pnfs_release_ds_info(struct pnfs_ds_commit_info *fl_cinfo, struct inode *inode)
{
struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
if (ld != NULL && ld->release_ds_info != NULL)
ld->release_ds_info(fl_cinfo, inode);
}
static inline void
pnfs_generic_mark_devid_invalid(struct nfs4_deviceid_node *node)
{
@ -770,6 +781,11 @@ pnfs_init_ds_commit_info(struct pnfs_ds_commit_info *fl_cinfo)
{
}
static inline void
pnfs_release_ds_info(struct pnfs_ds_commit_info *fl_cinfo, struct inode *inode)
{
}
static inline bool
pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
struct nfs_commit_info *cinfo, u32 ds_commit_idx)