| Message ID | 20180523144357.18985-14-hch@lst.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, May 23, 2018 at 04:43:36PM +0200, Christoph Hellwig wrote: > Factor the repeated calculation of the on-disk sector for a given logical > block into a littler helper. > > Signed-off-by: Christoph Hellwig <hch@lst.de> Looks ok, Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> --D > --- > fs/iomap.c | 19 ++++++++++--------- > 1 file changed, 10 insertions(+), 9 deletions(-) > > diff --git a/fs/iomap.c b/fs/iomap.c > index 8e28f25f086f..f928df4ab9a9 100644 > --- a/fs/iomap.c > +++ b/fs/iomap.c > @@ -97,6 +97,12 @@ iomap_apply(struct inode *inode, loff_t pos, loff_t length, unsigned flags, > return written ? written : ret; > } > > +static sector_t > +iomap_sector(struct iomap *iomap, loff_t pos) > +{ > + return (iomap->addr + pos - iomap->offset) >> SECTOR_SHIFT; > +} > + > static void > iomap_write_failed(struct inode *inode, loff_t pos, unsigned len) > { > @@ -354,11 +360,8 @@ static int iomap_zero(struct inode *inode, loff_t pos, unsigned offset, > static int iomap_dax_zero(loff_t pos, unsigned offset, unsigned bytes, > struct iomap *iomap) > { > - sector_t sector = (iomap->addr + > - (pos & PAGE_MASK) - iomap->offset) >> 9; > - > - return __dax_zero_page_range(iomap->bdev, iomap->dax_dev, sector, > - offset, bytes); > + return __dax_zero_page_range(iomap->bdev, iomap->dax_dev, > + iomap_sector(iomap, pos & PAGE_MASK), offset, bytes); > } > > static loff_t > @@ -943,8 +946,7 @@ iomap_dio_zero(struct iomap_dio *dio, struct iomap *iomap, loff_t pos, > > bio = bio_alloc(GFP_KERNEL, 1); > bio_set_dev(bio, iomap->bdev); > - bio->bi_iter.bi_sector = > - (iomap->addr + pos - iomap->offset) >> 9; > + bio->bi_iter.bi_sector = iomap_sector(iomap, pos); > bio->bi_private = dio; > bio->bi_end_io = iomap_dio_bio_end_io; > > @@ -1038,8 +1040,7 @@ iomap_dio_actor(struct inode *inode, loff_t pos, loff_t length, > > bio = bio_alloc(GFP_KERNEL, nr_pages); > bio_set_dev(bio, iomap->bdev); > - bio->bi_iter.bi_sector = > - (iomap->addr + pos - iomap->offset) >> 9; > + bio->bi_iter.bi_sector = iomap_sector(iomap, pos); > bio->bi_write_hint = dio->iocb->ki_hint; > bio->bi_private = dio; > bio->bi_end_io = iomap_dio_bio_end_io; > -- > 2.17.0 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-xfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/fs/iomap.c b/fs/iomap.c index 8e28f25f086f..f928df4ab9a9 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -97,6 +97,12 @@ iomap_apply(struct inode *inode, loff_t pos, loff_t length, unsigned flags, return written ? written : ret; } +static sector_t +iomap_sector(struct iomap *iomap, loff_t pos) +{ + return (iomap->addr + pos - iomap->offset) >> SECTOR_SHIFT; +} + static void iomap_write_failed(struct inode *inode, loff_t pos, unsigned len) { @@ -354,11 +360,8 @@ static int iomap_zero(struct inode *inode, loff_t pos, unsigned offset, static int iomap_dax_zero(loff_t pos, unsigned offset, unsigned bytes, struct iomap *iomap) { - sector_t sector = (iomap->addr + - (pos & PAGE_MASK) - iomap->offset) >> 9; - - return __dax_zero_page_range(iomap->bdev, iomap->dax_dev, sector, - offset, bytes); + return __dax_zero_page_range(iomap->bdev, iomap->dax_dev, + iomap_sector(iomap, pos & PAGE_MASK), offset, bytes); } static loff_t @@ -943,8 +946,7 @@ iomap_dio_zero(struct iomap_dio *dio, struct iomap *iomap, loff_t pos, bio = bio_alloc(GFP_KERNEL, 1); bio_set_dev(bio, iomap->bdev); - bio->bi_iter.bi_sector = - (iomap->addr + pos - iomap->offset) >> 9; + bio->bi_iter.bi_sector = iomap_sector(iomap, pos); bio->bi_private = dio; bio->bi_end_io = iomap_dio_bio_end_io; @@ -1038,8 +1040,7 @@ iomap_dio_actor(struct inode *inode, loff_t pos, loff_t length, bio = bio_alloc(GFP_KERNEL, nr_pages); bio_set_dev(bio, iomap->bdev); - bio->bi_iter.bi_sector = - (iomap->addr + pos - iomap->offset) >> 9; + bio->bi_iter.bi_sector = iomap_sector(iomap, pos); bio->bi_write_hint = dio->iocb->ki_hint; bio->bi_private = dio; bio->bi_end_io = iomap_dio_bio_end_io;
Factor the repeated calculation of the on-disk sector for a given logical block into a littler helper. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/iomap.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-)