diff options
| author | Benny Halevy <bhalevy@panasas.com> | 2011-05-25 20:54:40 +0300 |
|---|---|---|
| committer | Boaz Harrosh <bharrosh@panasas.com> | 2011-05-29 20:56:55 +0300 |
| commit | 89a58e32d9105c01022a757fb32ddc3b51bf0025 (patch) | |
| tree | fd04ff022a084339868e81fc9a4679667c2b70bd /fs | |
| parent | 18ad0a9f2ccd260d37dd6bc5fa04c7819def4c84 (diff) | |
| download | lwn-89a58e32d9105c01022a757fb32ddc3b51bf0025.tar.gz lwn-89a58e32d9105c01022a757fb32ddc3b51bf0025.zip | |
NFSv4.1: use pnfs_generic_pg_test directly by layout driver
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/nfs4filelayout.c | 3 | ||||
| -rw-r--r-- | fs/nfs/objlayout/objio_osd.c | 14 | ||||
| -rw-r--r-- | fs/nfs/pnfs.c | 13 | ||||
| -rw-r--r-- | fs/nfs/pnfs.h | 6 |
4 files changed, 17 insertions, 19 deletions
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 24f05720daf1..426908809c97 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -661,6 +661,9 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, u64 p_stripe, r_stripe; u32 stripe_unit; + if (!pnfs_generic_pg_test(pgio, prev, req)) + return 0; + if (!pgio->pg_lseg) return 1; p_stripe = (u64)prev->wb_index << PAGE_CACHE_SHIFT; diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c index 8c2bd3eb8e8d..3b10d09e5210 100644 --- a/fs/nfs/objlayout/objio_osd.c +++ b/fs/nfs/objlayout/objio_osd.c @@ -988,18 +988,6 @@ ssize_t objio_write_pagelist(struct objlayout_io_state *ol_state, bool stable) return _write_exec(ios); } -/* - * objlayout_pg_test(). Called by nfs_can_coalesce_requests() - * - * return true iff coalesce page - */ -bool -objlayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, - struct nfs_page *req) -{ - return true; -} - static struct pnfs_layoutdriver_type objlayout_type = { .id = LAYOUT_OSD2_OBJECTS, .name = "LAYOUT_OSD2_OBJECTS", @@ -1013,7 +1001,7 @@ static struct pnfs_layoutdriver_type objlayout_type = { .read_pagelist = objlayout_read_pagelist, .write_pagelist = objlayout_write_pagelist, - .pg_test = objlayout_pg_test, + .pg_test = pnfs_generic_pg_test, .free_deviceid_node = objio_free_deviceid_node, diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 212fc292761a..d79f2df33a46 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1067,12 +1067,17 @@ pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, pgio->pg_count, access_type, gfp_flags); - } else if (pgio->pg_lseg && - req_offset(req) > end_offset(pgio->pg_lseg->pls_range.offset, - pgio->pg_lseg->pls_range.length)) + return true; + } + + if (pgio->pg_lseg && + req_offset(req) > end_offset(pgio->pg_lseg->pls_range.offset, + pgio->pg_lseg->pls_range.length)) return false; - return NFS_SERVER(pgio->pg_inode)->pnfs_curr_ld->pg_test(pgio, prev, req); + + return true; } +EXPORT_SYMBOL_GPL(pnfs_generic_pg_test); /* * Called by non rpc-based layout drivers diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 65daae59c8ae..48d0a8e4d062 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -295,8 +295,10 @@ static inline int pnfs_return_layout(struct inode *ino) static inline void pnfs_pageio_init(struct nfs_pageio_descriptor *pgio, struct inode *inode) { - if (NFS_SERVER(inode)->pnfs_curr_ld) - pgio->pg_test = pnfs_generic_pg_test; + struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld; + + if (ld) + pgio->pg_test = ld->pg_test; } #else /* CONFIG_NFS_V4_1 */ |