The functions used to interact with the asynchronous buffer currently are
located in the drivers.c source file. The only function driver.c uses is
comedi_buf_alloc().
For aesthetic reasons and to help maintainability, separate all the
asynchronous buffer functions out to a new comedi_buf.c source file.
Do a bit of cleanup of the comedi_buf_* functions to clarify them,
v3: reordered again to put questionable patches later in the series
fixed an issue in patch 5 that removed the smp_mb barrier
reword all the comments about the memory barriers
added two patches to prevent exposing comedi_buf_{read,write}_n_allocated
added patch to reorder the exported function prototypes
v2: rebased and reordered a bit based on next-20130108
fixed a couple int/unsigned int issues pointed out by Ian Abbott
H Hartley Sweeten (14):
staging: comedi: separate out comedi_buf_* functions
staging: comedi: comedi_buf: factor out common code to free the async buffer
staging: comedi: comedi_buf: factor out new buffer allocation code
staging: comedi: comedi_buf: rename comedi_reset_async_buf()
staging: comedi: comedi_buf: factor out common comedi_buf_write_alloc_* code
staging: comedi: comedi_buf: remove comedi_buf_write_alloc_strict
staging: comedi: comedi_buf: cleanup comedi_buf_munge()
staging: comedi: comedi_buf: clarify comedi_buf_write_free()
staging: comedi: comedi_buf: cleanup comedi_buf_read_n_available()
staging: comedi: comedi_buf: clarify comedi_buf_read_alloc()
staging: comedi: comedi_buf: clarify comedi_buf_read_free()
staging: comedi: comedi_buf: don't expose comedi_buf_read_n_allocated()
staging: comedi: comedi_buf: don't expose comedi_buf_write_n_allocated()
staging: comedi: comedi_buf: reorder exported function prototypes
drivers/staging/comedi/Makefile | 3 +-
drivers/staging/comedi/comedi_buf.c | 427 +++++++++++++++++++++++++++++++
drivers/staging/comedi/comedi_fops.c | 4 +-
drivers/staging/comedi/comedi_internal.h | 4 +-
drivers/staging/comedi/comedidev.h | 31 +--
drivers/staging/comedi/drivers.c | 398 ----------------------------
6 files changed, 444 insertions(+), 423 deletions(-)
create mode 100644 drivers/staging/comedi/comedi_buf.c
--
1.8.0
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