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authorAl Viro <viro@zeniv.linux.org.uk>2011-07-24 18:59:07 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-03 22:54:58 -0500
commitc2837de73e8081bd33bc72ad73f49d6bcba9d1b6 (patch)
tree3fca43b0147fc075c24a26aba1a60568ffd25f90 /fs/9p
parent18cb1b08d2e1ff6907130fc0ce78a5912efa0ba5 (diff)
9p: don't bother with unixmode2p9mode() for link() and symlink()
Pass perm to v9fs_vfs_mkspecial() instead of passing mode; calculate in caller when done for mknod(), use known value for link() and symlink(). As the result, we avoid a bit of work *and* stop mixing mode_t with P9_DMLINK. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/9p')
-rw-r--r--fs/9p/vfs_inode.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index f54a26859fcc..cde57a850adb 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -59,15 +59,13 @@ static const struct inode_operations v9fs_symlink_inode_operations;
*
*/
-static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
+static u32 unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
{
int res;
res = mode & 0777;
if (S_ISDIR(mode))
res |= P9_DMDIR;
if (v9fs_proto_dotu(v9ses)) {
- if (S_ISLNK(mode))
- res |= P9_DMSYMLINK;
if (v9ses->nodev == 0) {
if (S_ISSOCK(mode))
res |= P9_DMSOCKET;
@@ -85,10 +83,7 @@ static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
res |= P9_DMSETGID;
if ((mode & S_ISVTX) == S_ISVTX)
res |= P9_DMSETVTX;
- if ((mode & P9_DMLINK))
- res |= P9_DMLINK;
}
-
return res;
}
@@ -1303,9 +1298,8 @@ v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
*/
static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
- int mode, const char *extension)
+ u32 perm, const char *extension)
{
- u32 perm;
struct p9_fid *fid;
struct v9fs_session_info *v9ses;
@@ -1315,7 +1309,6 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
return -EPERM;
}
- perm = unixmode2p9mode(v9ses, mode);
fid = v9fs_create(v9ses, dir, dentry, (char *) extension, perm,
P9_OREAD);
if (IS_ERR(fid))
@@ -1342,7 +1335,7 @@ v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
P9_DPRINTK(P9_DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino,
dentry->d_name.name, symname);
- return v9fs_vfs_mkspecial(dir, dentry, S_IFLNK, symname);
+ return v9fs_vfs_mkspecial(dir, dentry, P9_DMSYMLINK, symname);
}
/**
@@ -1399,11 +1392,13 @@ clunk_fid:
static int
v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
{
+ struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
int retval;
char *name;
+ u32 perm;
P9_DPRINTK(P9_DEBUG_VFS,
- " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
+ " %lu,%s mode: %hx MAJOR: %u MINOR: %u\n", dir->i_ino,
dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
if (!new_valid_dev(rdev))
@@ -1426,7 +1421,8 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rde
return -EINVAL;
}
- retval = v9fs_vfs_mkspecial(dir, dentry, mode, name);
+ perm = unixmode2p9mode(v9ses, mode);
+ retval = v9fs_vfs_mkspecial(dir, dentry, perm, name);
__putname(name);
return retval;