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author | Thomas Gleixner <tglx@linutronix.de> | 2008-08-31 11:16:57 -0400 |
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committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-09-06 00:34:59 -0400 |
commit | b773ad40aca5bd755ba886620842f16e8fef6d75 (patch) | |
tree | 7065661f6559aff70244f2805ced48f894c9b38c /Documentation/scsi/ncr53c8xx.txt | |
parent | df0cc0539b4127bd02f64de2c335b4af1fdb3845 (diff) |
select: add poll_select_set_timeout() and poll_select_copy_remaining() helpers
This patch adds 2 helpers that will be used for the hrtimer based select/poll:
poll_select_set_timeout() is a helper that takes a timeout (as a second, nanosecond
pair) and turns that into a "struct timespec" that represents the absolute end time.
This is a common operation in the many select() and poll() variants and needs various,
common, sanity checks.
poll_select_copy_remaining() is a helper that takes care of copying the remaining
time to userspace, as select(), pselect() and ppoll() do. This function comes in
both a natural and a compat implementation (due to datastructure differences).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Diffstat (limited to 'Documentation/scsi/ncr53c8xx.txt')
0 files changed, 0 insertions, 0 deletions