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NFSv4.1 add nfs_inode book keeping for mdsthreshold

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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>
This commit is contained in:
Andy Adamson
2012-05-24 13:13:24 -04:00
committed by Trond Myklebust
parent 82be417aa3
commit 2701d086db
6 changed files with 13 additions and 0 deletions
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3
include/linux/nfs_fs.h
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@@ -202,6 +202,9 @@ struct nfs_inode {
/* pNFS layout information */
struct pnfs_layout_hdr *layout;
#endif /* CONFIG_NFS_V4*/
/* how many bytes have been written/read and how many bytes queued up */
__u64 write_io;
__u64 read_io;
#ifdef CONFIG_NFS_FSCACHE
struct fscache_cookie *fscache;
#endif