ceph: request FILE_LAZYIO cap when LAZY file mode is set

[net-next-2.6.git] / fs / ceph / ceph_fs.c

diff --git a/fs/ceph/ceph_fs.c b/fs/ceph/ceph_fs.c
index 79d76bc4303ff7a9ce822df4b2ac24f1a6cd9604..3ac6cc7c1156dafd78262e7290edf914c3f01e31 100644 (file)
--- a/fs/ceph/ceph_fs.c
+++ b/fs/ceph/ceph_fs.c
@@ -29,46 +29,44 @@ int ceph_file_layout_is_valid(const struct ceph_file_layout *layout)
 
 int ceph_flags_to_mode(int flags)
 {
+       int mode;
+
 #ifdef O_DIRECTORY  /* fixme */
        if ((flags & O_DIRECTORY) == O_DIRECTORY)
                return CEPH_FILE_MODE_PIN;
 #endif
+       if ((flags & O_APPEND) == O_APPEND)
+               flags |= O_WRONLY;
+
+       if ((flags & O_ACCMODE) == O_RDWR)
+               mode = CEPH_FILE_MODE_RDWR;
+       else if ((flags & O_ACCMODE) == O_WRONLY)
+               mode = CEPH_FILE_MODE_WR;
+       else
+               mode = CEPH_FILE_MODE_RD;
+
 #ifdef O_LAZY
        if (flags & O_LAZY)
-               return CEPH_FILE_MODE_LAZY;
+               mode |= CEPH_FILE_MODE_LAZY;
 #endif
-       if ((flags & O_APPEND) == O_APPEND)
-               flags |= O_WRONLY;
 
-       flags &= O_ACCMODE;
-       if ((flags & O_RDWR) == O_RDWR)
-               return CEPH_FILE_MODE_RDWR;
-       if ((flags & O_WRONLY) == O_WRONLY)
-               return CEPH_FILE_MODE_WR;
-       return CEPH_FILE_MODE_RD;
+       return mode;
 }
 
 int ceph_caps_for_mode(int mode)
 {
-       switch (mode) {
-       case CEPH_FILE_MODE_PIN:
-               return CEPH_CAP_PIN;
-       case CEPH_FILE_MODE_RD:
-               return CEPH_CAP_PIN | CEPH_CAP_FILE_SHARED |
+       int caps = CEPH_CAP_PIN;
+
+       if (mode & CEPH_FILE_MODE_RD)
+               caps |= CEPH_CAP_FILE_SHARED |
                        CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE;
-       case CEPH_FILE_MODE_RDWR:
-               return CEPH_CAP_PIN | CEPH_CAP_FILE_SHARED |
-                       CEPH_CAP_FILE_EXCL |
-                       CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE |
-                       CEPH_CAP_FILE_WR | CEPH_CAP_FILE_BUFFER |
-                       CEPH_CAP_AUTH_SHARED | CEPH_CAP_AUTH_EXCL |
-                       CEPH_CAP_XATTR_SHARED | CEPH_CAP_XATTR_EXCL;
-       case CEPH_FILE_MODE_WR:
-               return CEPH_CAP_PIN | CEPH_CAP_FILE_SHARED |
-                       CEPH_CAP_FILE_EXCL |
+       if (mode & CEPH_FILE_MODE_WR)
+               caps |= CEPH_CAP_FILE_EXCL |
                        CEPH_CAP_FILE_WR | CEPH_CAP_FILE_BUFFER |
                        CEPH_CAP_AUTH_SHARED | CEPH_CAP_AUTH_EXCL |
                        CEPH_CAP_XATTR_SHARED | CEPH_CAP_XATTR_EXCL;
-       }
-       return 0;
+       if (mode & CEPH_FILE_MODE_LAZY)
+               caps |= CEPH_CAP_FILE_LAZYIO;
+
+       return caps;
 }