On Tue, Jul 09, 2013 at 01:21:42AM -0700, Anand Moon wrote: > Hi Kumar Amit, > > These function are define in > > > http://lxr.linux.no/linux+v3.10/include/linux/buffer_head.h > > > The ## (double number sign) operator concatenates two tokens in a macro invocation (text and/or arguments) given in a macro definition > > > /* > * Emit the buffer bitops functions. Note that there are also functions > * of the form "mark_buffer_foo()". These are higher-level functions which > * do something in addition to setting a b_state bit. > */ > BUFFER_FNS(Uptodate, uptodate) > BUFFER_FNS(Dirty, dirty) > TAS_BUFFER_FNS(Dirty, dirty) > BUFFER_FNS(Lock, locked) > BUFFER_FNS(Req, req) > TAS_BUFFER_FNS(Req, req) > BUFFER_FNS(Mapped, mapped) > BUFFER_FNS(New, new) > BUFFER_FNS(Async_Read, async_read) > BUFFER_FNS(Async_Write, async_write) > BUFFER_FNS(Delay, delay) > BUFFER_FNS(Boundary, boundary) > BUFFER_FNS(Write_EIO, write_io_error) > BUFFER_FNS(Unwritten, unwritten) > BUFFER_FNS(Meta, meta) > BUFFER_FNS(Prio, prio) > > These function get expanded before we compile the kernel. Thank you Anand. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
