xnu-3248.20.55.tar.gz

[apple/xnu.git] / bsd / man / man2 / fcntl.2

diff --git a/bsd/man/man2/fcntl.2 b/bsd/man/man2/fcntl.2
index b53a38be18362ae4b64ff1f4972faad6ee107b34..ce2daefe56713ef3ad3606b4d6374536217a42ea 100644 (file)
--- a/bsd/man/man2/fcntl.2
+++ b/bsd/man/man2/fcntl.2
@@ -184,7 +184,10 @@ turns data caching on.
 Get disk device information.
 Currently this only includes the
 disk device address that corresponds
 Get disk device information.
 Currently this only includes the
 disk device address that corresponds

-to the current file offset.
+to the current file offset. Note that if the
+file offset is not backed by physical blocks
+we can return -1 as the offset. This is subject
+to change.

 .It Dv F_LOG2PHYS_EXT
 Variant of F_LOG2PHYS that uses the passed in
 file offset and length.
 .It Dv F_LOG2PHYS_EXT
 Variant of F_LOG2PHYS that uses the passed in
 file offset and length.