diff options
Diffstat (limited to 'pfinet/linux-src/include/linux/nfs_fs_i.h')
-rw-r--r-- | pfinet/linux-src/include/linux/nfs_fs_i.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/nfs_fs_i.h b/pfinet/linux-src/include/linux/nfs_fs_i.h new file mode 100644 index 00000000..885f21f0 --- /dev/null +++ b/pfinet/linux-src/include/linux/nfs_fs_i.h @@ -0,0 +1,71 @@ +#ifndef _NFS_FS_I +#define _NFS_FS_I + +#include <linux/nfs.h> +#include <linux/pipe_fs_i.h> + +/* + * nfs fs inode data in memory + */ +struct nfs_inode_info { + /* + * This is a place holder so named pipes on NFS filesystems + * work (more or less correctly). This must be first in the + * struct because the data is really accessed via inode->u.pipe_i. + */ + struct pipe_inode_info pipeinfo; + + /* + * Various flags + */ + unsigned short flags; + + /* + * read_cache_jiffies is when we started read-caching this inode, + * and read_cache_mtime is the mtime of the inode at that time. + * attrtimeo is for how long the cached information is assumed + * to be valid. A successful attribute revalidation doubles + * attrtimeo (up to acregmax/acdirmax), a failure resets it to + * acregmin/acdirmin. + * + * We need to revalidate the cached attrs for this inode if + * + * jiffies - read_cache_jiffies > attrtimeo + * + * and invalidate any cached data/flush out any dirty pages if + * we find that + * + * mtime != read_cache_mtime + */ + unsigned long read_cache_jiffies; + unsigned long read_cache_mtime; + unsigned long attrtimeo; + + /* + * This is the list of dirty unwritten pages. + * NFSv3 will want to add a list for written but uncommitted + * pages. + */ + struct nfs_wreq * writeback; +}; + +/* + * Legal inode flag values + */ +#define NFS_INO_REVALIDATE 0x0001 /* revalidating attrs */ +#define NFS_IS_SNAPSHOT 0x0010 /* a snapshot file */ + +/* + * NFS lock info + */ +struct nfs_lock_info { + u32 state; + u32 flags; +}; + +/* + * Lock flag values + */ +#define NFS_LCK_GRANTED 0x0001 /* lock has been granted */ + +#endif |