Commit c21e7168 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFSv4/pnfs: Support a list of commit arrays in struct pnfs_ds_commit_info 



When we have multiple layout segments with different lists of mirrored
data, we need to track the commits on a per layout segment basis.
This patch adds a list to support this tracking in struct
pnfs_ds_commit_info.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent d7242c46

fs/nfs/direct.c

+1 −0
Original line number Diff line number Diff line
@@ -305,6 +305,7 @@ static inline struct nfs_direct_req *nfs_direct_req_alloc(void) 
	kref_get(&dreq->kref);

	init_completion(&dreq->completion);

	INIT_LIST_HEAD(&dreq->mds_cinfo.list);

	pnfs_init_ds_commit_info(&dreq->ds_cinfo);

	dreq->verf.committed = NFS_INVALID_STABLE_HOW;	/* not set yet */

	INIT_WORK(&dreq->work, nfs_direct_write_schedule_work);

	spin_lock_init(&dreq->lock);

fs/nfs/filelayout/filelayout.c

+4 −1
Original line number Diff line number Diff line
@@ -1140,7 +1140,10 @@ filelayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags) 
	struct nfs4_filelayout *flo;



	flo = kzalloc(sizeof(*flo), gfp_flags);

	return flo != NULL ? &flo->generic_hdr : NULL;

	if (flo == NULL)

		return NULL;

	pnfs_init_ds_commit_info(&flo->commit_info);

	return &flo->generic_hdr;

}



static void

fs/nfs/flexfilelayout/flexfilelayout.c

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ ff_layout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags) 


	ffl = kzalloc(sizeof(*ffl), gfp_flags);

	if (ffl) {

		pnfs_init_ds_commit_info(&ffl->commit_info);

		INIT_LIST_HEAD(&ffl->error_list);

		INIT_LIST_HEAD(&ffl->mirrors);

		ffl->last_report_time = ktime_get();

fs/nfs/pnfs.h

+11 −0
Original line number Diff line number Diff line
@@ -462,6 +462,12 @@ pnfs_get_ds_info(struct inode *inode) 
	return ld->get_ds_info(inode);

}



static inline void

pnfs_init_ds_commit_info(struct pnfs_ds_commit_info *fl_cinfo)

{

	INIT_LIST_HEAD(&fl_cinfo->commits);

}



static inline void

pnfs_generic_mark_devid_invalid(struct nfs4_deviceid_node *node)

{
@@ -759,6 +765,11 @@ pnfs_get_ds_info(struct inode *inode) 
	return NULL;

}



static inline void

pnfs_init_ds_commit_info(struct pnfs_ds_commit_info *fl_cinfo)

{

}



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)

include/linux/nfs_xdr.h

+1 −0
Original line number Diff line number Diff line
@@ -1280,6 +1280,7 @@ struct pnfs_commit_array { 
};



struct pnfs_ds_commit_info {

	struct list_head commits;

	unsigned int nwritten;

	unsigned int ncommitting;

	unsigned int nbuckets;

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