From e8c8b3a79d85c22d3665b97dde843dc4d8d7ae37 Mon Sep 17 00:00:00 2001 From: David Chinner Date: Wed, 2 Nov 2005 10:33:05 +1100 Subject: [XFS] Introduce two new mount options (nolargeio/largeio) to allow filesystems to expose the filesystem stripe width in stat(2) rather than the page cache size. This allows applications requiring high bandwidth to easily determine the optimum I/O size for the underlying filesystem. The default is to report the page cache size (i.e. "nolargeio"). SGI-PV: 942818 SGI-Modid: xfs-linux:xfs-kern:23830a Signed-off-by: David Chinner Signed-off-by: Nathan Scott --- fs/xfs/xfs_clnt.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/xfs/xfs_clnt.h') diff --git a/fs/xfs/xfs_clnt.h b/fs/xfs/xfs_clnt.h index c93cb282f3d..90d9d56c4dc 100644 --- a/fs/xfs/xfs_clnt.h +++ b/fs/xfs/xfs_clnt.h @@ -106,5 +106,7 @@ struct xfs_mount_args { #define XFSMNT_IHASHSIZE 0x20000000 /* inode hash table size */ #define XFSMNT_DIRSYNC 0x40000000 /* sync creat,link,unlink,rename * symlink,mkdir,rmdir,mknod */ +#define XFSMNT_COMPAT_IOSIZE 0x80000000 /* don't report large preferred + * I/O size in stat() */ #endif /* __XFS_CLNT_H__ */ -- cgit