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authorAndy Adamson <andros@netapp.com>2012-05-24 13:13:24 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-05-24 16:15:48 -0400
commit2701d086dbfca03b2d28b25c6dc11dd78d0e26ad (patch)
tree69f81dd2a979600cd3ff4f1861c6d7ef5c25b1ed /fs/nfs/read.c
parent82be417aa37c05116e310b0f2171187ea389f89b (diff)
downloadlinux-2701d086dbfca03b2d28b25c6dc11dd78d0e26ad.tar.bz2
NFSv4.1 add nfs_inode book keeping for mdsthreshold
Keep track of the number of bytes read or written via buffered, direct, and mem-mapped i/o for use by mdsthreshold size_io hints. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/read.c')
-rw-r--r--fs/nfs/read.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 2cfdd7785411..86ced7836214 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -152,6 +152,7 @@ int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode,
nfs_pageio_init_read(&pgio, inode, &nfs_async_read_completion_ops);
nfs_pageio_add_request(&pgio, new);
nfs_pageio_complete(&pgio);
+ NFS_I(inode)->read_io += pgio.pg_bytes_written;
return 0;
}
@@ -656,6 +657,7 @@ int nfs_readpages(struct file *filp, struct address_space *mapping,
ret = read_cache_pages(mapping, pages, readpage_async_filler, &desc);
nfs_pageio_complete(&pgio);
+ NFS_I(inode)->read_io += pgio.pg_bytes_written;
npages = (pgio.pg_bytes_written + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
nfs_add_stats(inode, NFSIOS_READPAGES, npages);
read_complete: