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| author | Benny Halevy <bhalevy@panasas.com> | 2011-05-22 19:47:46 +0300 |
|---|---|---|
| committer | Boaz Harrosh <bharrosh@panasas.com> | 2011-05-29 20:52:33 +0300 |
| commit | 707ed5fdb587c71fdb7ad224ba1d80231f33c974 (patch) | |
| tree | a3903d971a59df7fb311fe9ce5cd830c92e2bd34 | |
| parent | fb3296eb4636763918edef2d22e45b85b15d4518 (diff) | |
| download | linux-3.10-707ed5fdb587c71fdb7ad224ba1d80231f33c974.tar.gz linux-3.10-707ed5fdb587c71fdb7ad224ba1d80231f33c974.tar.bz2 linux-3.10-707ed5fdb587c71fdb7ad224ba1d80231f33c974.zip | |
pnfs: align layoutget requests on page boundaries
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
| -rw-r--r-- | fs/nfs/pnfs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index c2f09e9b670..2357ee343f4 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -850,6 +850,7 @@ pnfs_update_layout(struct inode *ino, .offset = pos, .length = count, }; + unsigned pg_offset; struct nfs_inode *nfsi = NFS_I(ino); struct nfs_client *clp = NFS_SERVER(ino)->nfs_client; struct pnfs_layout_hdr *lo; @@ -899,6 +900,13 @@ pnfs_update_layout(struct inode *ino, spin_unlock(&clp->cl_lock); } + pg_offset = arg.offset & ~PAGE_CACHE_MASK; + if (pg_offset) { + arg.offset -= pg_offset; + arg.length += pg_offset; + } + arg.length = PAGE_CACHE_ALIGN(arg.length); + lseg = send_layoutget(lo, ctx, &arg, gfp_flags); if (!lseg && first) { spin_lock(&clp->cl_lock); |