mm: split off __bdi_set_min_ratio() function

This splits off the __bdi_set_min_ratio() function from the
bdi_set_min_ratio() function. The __bdi_set_min_ratio() function will
also be called from the bdi_set_min_bytes() function, which will be
introduced in the next patch.

Link: https://lkml.kernel.org/r/20221119005215.3052436-12-shr@devkernel.io
Signed-off-by: Stefan Roesch <shr@devkernel.io>
Cc: Chris Mason <clm@meta.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Stefan Roesch 2022-11-18 16:52:06 -08:00 committed by Andrew Morton
parent 712c00d66a
commit 8021fb3232

View file

@ -685,7 +685,7 @@ static u64 bdi_get_bytes(unsigned int ratio)
return bytes;
}
int bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio)
static int __bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio)
{
unsigned int delta;
int ret = 0;
@ -731,6 +731,11 @@ static int __bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ra
return ret;
}
int bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio)
{
return __bdi_set_min_ratio(bdi, min_ratio * BDI_RATIO_SCALE);
}
int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio)
{
if (max_ratio > 100)