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| author | Weston Andros Adamson <dros@primarydata.com> | 2014-07-11 10:20:48 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-07-12 17:35:46 -0400 |
| commit | d458138353726ea6dcbc53ae3597e489d0432c25 (patch) | |
| tree | 178e8cb0040307bda0dbd556ad1137b89ca9a10f /fs/nfs/internal.h | |
| parent | 84d3a9a913ba6a90c79b7763d063bb42554a8906 (diff) | |
| download | lwn-d458138353726ea6dcbc53ae3597e489d0432c25.tar.gz lwn-d458138353726ea6dcbc53ae3597e489d0432c25.zip | |
nfs: handle multiple reqs in nfs_page_async_flush
Change nfs_find_and_lock_request so nfs_page_async_flush can handle multiple
requests in a page. There is only one request for a page the first time
nfs_page_async_flush is called, but if a write or commit fails, async_flush
is called again and there may be multiple requests associated with the page.
The solution is to merge all the requests in a page group into a single
request before calling nfs_pageio_add_request.
Rename nfs_find_and_lock_request to nfs_lock_and_join_requests and
change it to first lock all requests for the page, then cancel and merge
all subrequests into the head request.
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/internal.h')
| -rw-r--r-- | fs/nfs/internal.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 82ddbf46660e..f415cbf9f6c3 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -244,6 +244,7 @@ void nfs_pgio_data_release(struct nfs_pgio_data *); int nfs_generic_pgio(struct nfs_pageio_descriptor *, struct nfs_pgio_header *); int nfs_initiate_pgio(struct rpc_clnt *, struct nfs_pgio_data *, const struct rpc_call_ops *, int, int); +void nfs_free_request(struct nfs_page *req); static inline void nfs_iocounter_init(struct nfs_io_counter *c) { |