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| author | Fred Isaman <iisaman@netapp.com> | 2012-04-20 22:47:38 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-04-27 22:10:36 +0400 |
| commit | 799ba8d53d32c84bd2a867ca2689538a48176140 (patch) | |
| tree | e17ad842898a2c9b63183f7a435c984191336859 /fs/nfs/nfs4filelayout.h | |
| parent | 1acbbb4e16209e85c35ff6cacad61d802c07289b (diff) | |
| download | linux-799ba8d53d32c84bd2a867ca2689538a48176140.tar.xz | |
NFS4.1: Add lseg to struct nfs4_fl_commit_bucket
Also create a commit_info structure to hold the bucket array and push
it up from the lseg to the layout where it really belongs.
While we are at it, fix a refcounting bug due to an (incorrect)
implicit assumption that filelayout_scan_ds_commit_list always
completely emptied the src list.
This clarifies refcounting, removes the ugly find_only_write_lseg
functions, and pushes the file layout commit code along on the path to
supporting multiple lsegs.
Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4filelayout.h')
| -rw-r--r-- | fs/nfs/nfs4filelayout.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index 21190bb1f5e3..333a3ac97606 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -77,6 +77,13 @@ struct nfs4_file_layout_dsaddr { struct nfs4_fl_commit_bucket { struct list_head written; struct list_head committing; + struct pnfs_layout_segment *wlseg; + struct pnfs_layout_segment *clseg; +}; + +struct nfs4_fl_commit_info { + int nbuckets; + struct nfs4_fl_commit_bucket *buckets; }; struct nfs4_filelayout_segment { @@ -89,10 +96,19 @@ struct nfs4_filelayout_segment { struct nfs4_file_layout_dsaddr *dsaddr; /* Point to GETDEVINFO data */ unsigned int num_fh; struct nfs_fh **fh_array; - struct nfs4_fl_commit_bucket *commit_buckets; /* Sort commits to ds */ - int number_of_buckets; }; +struct nfs4_filelayout { + struct pnfs_layout_hdr generic_hdr; + struct nfs4_fl_commit_info commit_info; +}; + +static inline struct nfs4_filelayout * +FILELAYOUT_FROM_HDR(struct pnfs_layout_hdr *lo) +{ + return container_of(lo, struct nfs4_filelayout, generic_hdr); +} + static inline struct nfs4_filelayout_segment * FILELAYOUT_LSEG(struct pnfs_layout_segment *lseg) { |