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| author |   Weston Andros Adamson <dros@primarydata.com> | 2014-05-15 11:56:43 -0400 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@primarydata.com> | 2014-05-29 11:11:43 -0400 |
| commit | b4fdac1a5150174df0847a45dc6612ce5ce3daeb (patch) | |
| tree | 477f3dc72760a8ff622934723c4a984cd4c9ce5d /include/linux/nfs_page.h | |
| parent | nfs: remove unused arg from nfs_create_request (diff) | |
| download | wireguard-linux-b4fdac1a5150174df0847a45dc6612ce5ce3daeb.tar.xz wireguard-linux-b4fdac1a5150174df0847a45dc6612ce5ce3daeb.zip | |
nfs: modify pg_test interface to return size_t
This is a step toward allowing pg_test to inform the the
coalescing code to reduce the size of requests so they may fit in
whatever scheme the pg_test callback wants to define.
For now, just return the size of the request if there is space, or 0
if there is not. This shouldn't change any behavior as it acts
the same as when the pg_test functions returned bool.
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'include/linux/nfs_page.h')
| -rw-r--r-- | include/linux/nfs_page.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index be0b0981e7a0..13d59af561f6 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -46,7 +46,8 @@ struct nfs_page { struct nfs_pageio_descriptor; struct nfs_pageio_ops { void (*pg_init)(struct nfs_pageio_descriptor *, struct nfs_page *); - bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); + size_t (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, + struct nfs_page *); int (*pg_doio)(struct nfs_pageio_descriptor *); }; @@ -102,7 +103,7 @@ extern int nfs_pageio_add_request(struct nfs_pageio_descriptor *, struct nfs_page *); extern void nfs_pageio_complete(struct nfs_pageio_descriptor *desc); extern void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *, pgoff_t); -extern bool nfs_generic_pg_test(struct nfs_pageio_descriptor *desc, +extern size_t nfs_generic_pg_test(struct nfs_pageio_descriptor *desc, struct nfs_page *prev, struct nfs_page *req); extern int nfs_wait_on_request(struct nfs_page *); |