don't transliterate lower bits of ->intent.open.flags to FMODE_...
->create() instances are much happier that way...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 1f46257..b5f63a5 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1338,16 +1338,26 @@
return 0;
/* Are we trying to write to a read only partition? */
if (__mnt_is_readonly(nd->path.mnt) &&
- (nd->intent.open.flags & (O_CREAT|O_TRUNC|FMODE_WRITE)))
+ (nd->intent.open.flags & (O_CREAT|O_TRUNC|O_ACCMODE)))
return 0;
return 1;
}
+static fmode_t flags_to_mode(int flags)
+{
+ fmode_t res = (__force fmode_t)flags & FMODE_EXEC;
+ if ((flags & O_ACCMODE) != O_WRONLY)
+ res |= FMODE_READ;
+ if ((flags & O_ACCMODE) != O_RDONLY)
+ res |= FMODE_WRITE;
+ return res;
+}
+
static struct nfs_open_context *create_nfs_open_context(struct dentry *dentry, int open_flags)
{
struct nfs_open_context *ctx;
struct rpc_cred *cred;
- fmode_t fmode = open_flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC);
+ fmode_t fmode = flags_to_mode(open_flags);
cred = rpc_lookup_cred();
if (IS_ERR(cred))
@@ -1567,7 +1577,7 @@
struct nfs_open_context *ctx = NULL;
struct iattr attr;
int error;
- int open_flags = O_CREAT|O_EXCL|FMODE_READ;
+ int open_flags = O_CREAT|O_EXCL;
dfprintk(VFS, "NFS: create(%s/%ld), %s\n",
dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
@@ -1657,7 +1667,7 @@
{
struct iattr attr;
int error;
- int open_flags = O_CREAT|O_EXCL|FMODE_READ;
+ int open_flags = O_CREAT|O_EXCL;
dfprintk(VFS, "NFS: create(%s/%ld), %s\n",
dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
@@ -2256,11 +2266,11 @@
{
int mask = 0;
- if (openflags & FMODE_READ)
+ if ((openflags & O_ACCMODE) != O_WRONLY)
mask |= MAY_READ;
- if (openflags & FMODE_WRITE)
+ if ((openflags & O_ACCMODE) != O_RDONLY)
mask |= MAY_WRITE;
- if (openflags & FMODE_EXEC)
+ if (openflags & __FMODE_EXEC)
mask |= MAY_EXEC;
return mask;
}