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| author |   Trond Myklebust <trond.myklebust@primarydata.com> | 2017-04-25 10:56:19 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2017-04-25 10:56:19 -0400 |
| commit | b3230e80a6d115d2eb50fe3f4794ad04d84766de (patch) | |
| tree | c0b55ff70d1643c37656e44b87d9f18e3256b58f /fs/nfs/pnfs.h | |
| parent | NFS: Always wait for I/O completion before unlock (diff) | |
| download | linux-dev-b3230e80a6d115d2eb50fe3f4794ad04d84766de.tar.xz linux-dev-b3230e80a6d115d2eb50fe3f4794ad04d84766de.zip | |
pNFS: Ensure we check layout segment validity in the pg_init() callback
If we have a layout segment cached in pgio->pg_lseg, we should check it
for validity before reusing it in a new RPC request. Otherwise, if we
recoalesce, we can end up looping forever.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
| -rw-r--r-- | fs/nfs/pnfs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 825a1b8ddc4f..2d05b756a8d6 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -234,6 +234,7 @@ void pnfs_put_lseg_locked(struct pnfs_layout_segment *lseg); void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, struct nfs_fsinfo *); void unset_pnfs_layoutdriver(struct nfs_server *); +void pnfs_generic_pg_check_layout(struct nfs_pageio_descriptor *pgio); void pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *, struct nfs_page *); int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc); void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio, |