xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

pnfs: track multiple layout types in fsinfo structure

Browse Source 
Current NFSv4.1/pNFS client assumes that MDS supports only one layout
type. While it's true for most existing servers, nevertheless, this can
be change in the near future.

For now, this patch just plumbs in the ability to track a list of
layouts in the fsinfo structure. The existing behavior of the client
is preserved, by having it just select the first entry in the list.

Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Signed-off-by: Jeff Layton <jlayton@poochiereds.net>
Reviewed-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Jeff Layton
2016-08-10 15:58:24 -04:00
committed by Anna Schumaker
parent 2813b626e3
commit 3132e49ece
5 changed files with 35 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
fs/nfs/pnfs.h
View File

@@ -236,7 +236,7 @@ void pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo);
void pnfs_put_lseg(struct pnfs_layout_segment *lseg);
void pnfs_put_lseg_locked(struct pnfs_layout_segment *lseg);
void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32);
void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32 *);
void unset_pnfs_layoutdriver(struct nfs_server *);
void pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *, struct nfs_page *);
int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc);
@@ -657,7 +657,7 @@ pnfs_wait_on_layoutreturn(struct inode *ino, struct rpc_task *task)
}
static inline void set_pnfs_layoutdriver(struct nfs_server *s,
const struct nfs_fh *mntfh, u32 id)
const struct nfs_fh *mntfh, u32 *ids)
{
}