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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-03-23 21:48:23 +0300 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-03-27 23:34:35 +0300 |
| commit | e1e54ab710f8da922cd44651463bf8bb61114b5a (patch) | |
| tree | bf98a9ce386ea6960ca2b65ff437f70e7b75908a /fs/nfs/flexfilelayout/flexfilelayout.c | |
| parent | 660d1eb22301c290945450414fb0be5ae25526f1 (diff) | |
| download | linux-e1e54ab710f8da922cd44651463bf8bb61114b5a.tar.xz | |
pNFS/flexfiles: Check the layout segment range before doing I/O
When starting to read or write with a layout segment, check that the
range matches our request.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/flexfilelayout/flexfilelayout.c')
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index 3221001f2ea1..2b45807a5221 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c @@ -831,6 +831,14 @@ ff_layout_pg_get_read(struct nfs_pageio_descriptor *pgio, } static void +ff_layout_pg_check_layout(struct nfs_pageio_descriptor *pgio, + struct nfs_page *req) +{ + pnfs_generic_pg_check_layout(pgio); + pnfs_generic_pg_check_range(pgio, req); +} + +static void ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *req) { @@ -840,7 +848,7 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio, int ds_idx; retry: - pnfs_generic_pg_check_layout(pgio); + ff_layout_pg_check_layout(pgio, req); /* Use full layout for now */ if (!pgio->pg_lseg) { ff_layout_pg_get_read(pgio, req, false); @@ -900,7 +908,7 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio, int i; retry: - pnfs_generic_pg_check_layout(pgio); + ff_layout_pg_check_layout(pgio, req); if (!pgio->pg_lseg) { pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, nfs_req_openctx(req), |