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fs/9p: iattr_valid flags are kernel internal flags map them to 9p values.

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Kernel internal values can change, add protocol values for these constant
and use them.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This commit is contained in:
Aneesh Kumar K.V 2011-12-18 23:03:13 +05:30 committed by Eric Van Hensbergen
parent b605479306
commit f766619db2
1 changed files with 41 additions and 1 deletions
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42
fs/9p/vfs_inode_dotl.c
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@ -522,6 +522,46 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
return 0;
}
/*
* Attribute flags.
*/
#define P9_ATTR_MODE (1 << 0)
#define P9_ATTR_UID (1 << 1)
#define P9_ATTR_GID (1 << 2)
#define P9_ATTR_SIZE (1 << 3)
#define P9_ATTR_ATIME (1 << 4)
#define P9_ATTR_MTIME (1 << 5)
#define P9_ATTR_CTIME (1 << 6)
#define P9_ATTR_ATIME_SET (1 << 7)
#define P9_ATTR_MTIME_SET (1 << 8)
struct dotl_iattr_map {
int iattr_valid;
int p9_iattr_valid;
};
static int v9fs_mapped_iattr_valid(int iattr_valid)
{
int i;
int p9_iattr_valid = 0;
struct dotl_iattr_map dotl_iattr_map[] = {
{ ATTR_MODE, P9_ATTR_MODE },
{ ATTR_UID, P9_ATTR_UID },
{ ATTR_GID, P9_ATTR_GID },
{ ATTR_SIZE, P9_ATTR_SIZE },
{ ATTR_ATIME, P9_ATTR_ATIME },
{ ATTR_MTIME, P9_ATTR_MTIME },
{ ATTR_CTIME, P9_ATTR_CTIME },
{ ATTR_ATIME_SET, P9_ATTR_ATIME_SET },
{ ATTR_MTIME_SET, P9_ATTR_MTIME_SET },
};
for (i = 0; i < ARRAY_SIZE(dotl_iattr_map); i++) {
if (iattr_valid & dotl_iattr_map[i].iattr_valid)
p9_iattr_valid |= dotl_iattr_map[i].p9_iattr_valid;
}
return p9_iattr_valid;
}
/**
* v9fs_vfs_setattr_dotl - set file metadata
* @dentry: file whose metadata to set
@ -542,7 +582,7 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
if (retval)
return retval;
p9attr.valid = iattr->ia_valid;
p9attr.valid = v9fs_mapped_iattr_valid(iattr->ia_valid);
p9attr.mode = iattr->ia_mode;
p9attr.uid = iattr->ia_uid;
p9attr.gid = iattr->ia_gid;