On Friday 19 October 2007 08:26, Matthew Wilcox wrote:
> Use TASK_KILLABLE to allow wait_on_retry_sync_kiocb to return -EINTR.
> All callers then check the return value and break out of their loops.
>
> Signed-off-by: Matthew Wilcox <[email protected]>
> ---
> fs/read_write.c | 17 ++++++++++++-----
> 1 files changed, 12 insertions(+), 5 deletions(-)
>
> diff --git a/fs/read_write.c b/fs/read_write.c
> index 124693e..3196a3b 100644
> --- a/fs/read_write.c
> +++ b/fs/read_write.c
> @@ -218,14 +218,15 @@ Einval:
> return -EINVAL;
> }
>
> -static void wait_on_retry_sync_kiocb(struct kiocb *iocb)
> +static int wait_on_retry_sync_kiocb(struct kiocb *iocb)
> {
> - set_current_state(TASK_UNINTERRUPTIBLE);
> + set_current_state(TASK_KILLABLE);
> if (!kiocbIsKicked(iocb))
> schedule();
> else
> kiocbClearKicked(iocb);
> __set_current_state(TASK_RUNNING);
> + return fatal_signal_pending(current) ? -EINTR : 0;
Although the EINTR never gets to userspace anyway, is there a good
reason why the last patch for do_generic_mapping_read doesn't pass
back -EINTR?
-
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