From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 02/19] xfs: use xfs_iext_get_extent instead of open coding it
Date: Wed, 20 Sep 2017 14:20:53 -0700 [thread overview]
Message-ID: <20170920212053.GJ7112@magnolia> (raw)
In-Reply-To: <20170918152422.24345-3-hch@lst.de>
On Mon, Sep 18, 2017 at 08:24:05AM -0700, Christoph Hellwig wrote:
> This avoids exposure to details of the extent list implementation.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
> fs/xfs/libxfs/xfs_bmap.c | 36 ++++++++++++++++--------------------
> fs/xfs/xfs_trace.h | 2 +-
> 2 files changed, 17 insertions(+), 21 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
> index f2f5bdb9e092..555ff198e28c 100644
> --- a/fs/xfs/libxfs/xfs_bmap.c
> +++ b/fs/xfs/libxfs/xfs_bmap.c
> @@ -1467,7 +1467,7 @@ xfs_bmap_last_extent(
> return 0;
> }
>
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, nextents - 1), rec);
> + xfs_iext_get_extent(ifp, nextents - 1, rec);
> *is_empty = 0;
> return 0;
> }
> @@ -1553,7 +1553,6 @@ xfs_bmap_one_block(
> xfs_inode_t *ip, /* incore inode */
> int whichfork) /* data or attr fork */
> {
> - xfs_bmbt_rec_host_t *ep; /* ptr to fork's extent */
> xfs_ifork_t *ifp; /* inode fork pointer */
> int rval; /* return value */
> xfs_bmbt_irec_t s; /* internal version of extent */
> @@ -1568,8 +1567,7 @@ xfs_bmap_one_block(
> return 0;
> ifp = XFS_IFORK_PTR(ip, whichfork);
> ASSERT(ifp->if_flags & XFS_IFEXTENTS);
> - ep = xfs_iext_get_ext(ifp, 0);
> - xfs_bmbt_get_all(ep, &s);
> + xfs_iext_get_extent(ifp, 0, &s);
> rval = s.br_startoff == 0 && s.br_blockcount == 1;
> if (rval && whichfork == XFS_DATA_FORK)
> ASSERT(XFS_ISIZE(ip) == ip->i_mount->m_sb.sb_blocksize);
> @@ -1655,7 +1653,7 @@ xfs_bmap_add_extent_delay_real(
> */
> if (bma->idx > 0) {
> state |= BMAP_LEFT_VALID;
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx - 1), &LEFT);
> + xfs_iext_get_extent(ifp, bma->idx - 1, &LEFT);
>
> if (isnullstartblock(LEFT.br_startblock))
> state |= BMAP_LEFT_DELAY;
> @@ -1675,7 +1673,7 @@ xfs_bmap_add_extent_delay_real(
> */
> if (bma->idx < xfs_iext_count(ifp) - 1) {
> state |= BMAP_RIGHT_VALID;
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx + 1), &RIGHT);
> + xfs_iext_get_extent(ifp, bma->idx + 1, &RIGHT);
>
> if (isnullstartblock(RIGHT.br_startblock))
> state |= BMAP_RIGHT_DELAY;
> @@ -2222,7 +2220,7 @@ xfs_bmap_add_extent_unwritten_real(
> */
> if (*idx > 0) {
> state |= BMAP_LEFT_VALID;
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx - 1), &LEFT);
> + xfs_iext_get_extent(ifp, *idx - 1, &LEFT);
>
> if (isnullstartblock(LEFT.br_startblock))
> state |= BMAP_LEFT_DELAY;
> @@ -2242,7 +2240,7 @@ xfs_bmap_add_extent_unwritten_real(
> */
> if (*idx < xfs_iext_count(ifp) - 1) {
> state |= BMAP_RIGHT_VALID;
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx + 1), &RIGHT);
> + xfs_iext_get_extent(ifp, *idx + 1, &RIGHT);
> if (isnullstartblock(RIGHT.br_startblock))
> state |= BMAP_RIGHT_DELAY;
> }
> @@ -2716,7 +2714,7 @@ xfs_bmap_add_extent_hole_delay(
> */
> if (*idx > 0) {
> state |= BMAP_LEFT_VALID;
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx - 1), &left);
> + xfs_iext_get_extent(ifp, *idx - 1, &left);
>
> if (isnullstartblock(left.br_startblock))
> state |= BMAP_LEFT_DELAY;
> @@ -2728,7 +2726,7 @@ xfs_bmap_add_extent_hole_delay(
> */
> if (*idx < xfs_iext_count(ifp)) {
> state |= BMAP_RIGHT_VALID;
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx), &right);
> + xfs_iext_get_extent(ifp, *idx, &right);
>
> if (isnullstartblock(right.br_startblock))
> state |= BMAP_RIGHT_DELAY;
> @@ -2880,7 +2878,7 @@ xfs_bmap_add_extent_hole_real(
> */
> if (*idx > 0) {
> state |= BMAP_LEFT_VALID;
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx - 1), &left);
> + xfs_iext_get_extent(ifp, *idx - 1, &left);
> if (isnullstartblock(left.br_startblock))
> state |= BMAP_LEFT_DELAY;
> }
> @@ -2891,7 +2889,7 @@ xfs_bmap_add_extent_hole_real(
> */
> if (*idx < xfs_iext_count(ifp)) {
> state |= BMAP_RIGHT_VALID;
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx), &right);
> + xfs_iext_get_extent(ifp, *idx, &right);
> if (isnullstartblock(right.br_startblock))
> state |= BMAP_RIGHT_DELAY;
> }
> @@ -4209,10 +4207,8 @@ xfs_bmapi_allocate(
> if (bma->wasdel) {
> bma->length = (xfs_extlen_t)bma->got.br_blockcount;
> bma->offset = bma->got.br_startoff;
> - if (bma->idx) {
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx - 1),
> - &bma->prev);
> - }
> + if (bma->idx)
> + xfs_iext_get_extent(ifp, bma->idx - 1, &bma->prev);
> } else {
> bma->length = XFS_FILBLKS_MIN(bma->length, MAXEXTLEN);
> if (!bma->eof)
> @@ -4309,7 +4305,7 @@ xfs_bmapi_allocate(
> * or xfs_bmap_add_extent_hole_real might have merged it into one of
> * the neighbouring ones.
> */
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx), &bma->got);
> + xfs_iext_get_extent(ifp, bma->idx, &bma->got);
>
> ASSERT(bma->got.br_startoff <= bma->offset);
> ASSERT(bma->got.br_startoff + bma->got.br_blockcount >=
> @@ -4390,7 +4386,7 @@ xfs_bmapi_convert_unwritten(
> * xfs_bmap_add_extent_unwritten_real might have merged it into one
> * of the neighbouring ones.
> */
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx), &bma->got);
> + xfs_iext_get_extent(ifp, bma->idx, &bma->got);
>
> /*
> * We may have combined previously unwritten space with written space,
> @@ -5589,8 +5585,8 @@ __xfs_bunmapi(
> del.br_blockcount : mod;
> if (bno < got.br_startoff) {
> if (--lastx >= 0)
> - xfs_bmbt_get_all(xfs_iext_get_ext(
> - ifp, lastx), &got);
> + xfs_iext_get_extent(ifp, lastx,
> + &got);
> }
> continue;
> }
> diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
> index bb5514688d47..0a8999a310b9 100644
> --- a/fs/xfs/xfs_trace.h
> +++ b/fs/xfs/xfs_trace.h
> @@ -277,7 +277,7 @@ DECLARE_EVENT_CLASS(xfs_bmap_class,
> struct xfs_bmbt_irec r;
>
> ifp = xfs_iext_state_to_fork(ip, state);
> - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &r);
> + xfs_iext_get_extent(ifp, idx, &r);
> __entry->dev = VFS_I(ip)->i_sb->s_dev;
> __entry->ino = ip->i_ino;
> __entry->idx = idx;
> --
> 2.14.1
>
> --
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next prev parent reply other threads:[~2017-09-20 21:20 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-18 15:24 refactor extent manipulation V3 Christoph Hellwig
2017-09-18 15:24 ` [PATCH 01/19] xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real Christoph Hellwig
2017-09-20 21:20 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 02/19] xfs: use xfs_iext_get_extent instead of open coding it Christoph Hellwig
2017-09-20 21:20 ` Darrick J. Wong [this message]
2017-09-18 15:24 ` [PATCH 03/19] xfs: don't set XFS_BTCUR_BPRV_WASDEL in xfs_bunmapi Christoph Hellwig
2017-09-20 21:29 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 04/19] xfs: rename bno to end in __xfs_bunmapi Christoph Hellwig
2017-09-20 21:30 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 05/19] xfs: use xfs_bmap_del_extent_delay for the data fork as well Christoph Hellwig
2017-09-20 21:46 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 06/19] xfs: move some more code into xfs_bmap_del_extent_real Christoph Hellwig
2017-09-20 21:37 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 07/19] xfs: use correct state defines in xfs_bmap_del_extent_{cow,delay} Christoph Hellwig
2017-09-20 21:38 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 08/19] xfs: use the state defines in xfs_bmap_del_extent_real Christoph Hellwig
2017-09-20 21:41 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 09/19] xfs: refactor xfs_del_extent_real Christoph Hellwig
2017-09-20 21:42 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 10/19] xfs: refactor xfs_bmap_add_extent_hole_delay Christoph Hellwig
2017-09-20 21:44 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 11/19] xfs: refactor xfs_bmap_add_extent_hole_real Christoph Hellwig
2017-09-20 21:45 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 12/19] xfs: refactor xfs_bmap_add_extent_delay_real Christoph Hellwig
2017-09-19 16:35 ` Brian Foster
2017-09-21 13:27 ` Christoph Hellwig
2017-09-21 13:52 ` Brian Foster
2017-09-20 22:03 ` Darrick J. Wong
2017-09-21 13:28 ` Christoph Hellwig
2017-09-21 16:01 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 13/19] xfs: refactor delalloc accounting in xfs_bmap_add_extent_delay_real Christoph Hellwig
2017-09-19 16:35 ` Brian Foster
2017-09-20 22:12 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 14/19] xfs: refactor xfs_bmap_add_extent_unwritten_real Christoph Hellwig
2017-09-20 22:22 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 15/19] xfs: pass a struct xfs_bmbt_irec to xfs_bmbt_update Christoph Hellwig
2017-09-20 22:24 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 16/19] xfs: pass a struct xfs_bmbt_irec to xfs_bmbt_lookup_eq Christoph Hellwig
2017-09-20 22:27 ` Darrick J. Wong
2017-09-21 13:23 ` Christoph Hellwig
2017-09-21 15:34 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 17/19] xfs: replace xfs_bmbt_lookup_ge with xfs_bmbt_lookup_first Christoph Hellwig
2017-09-20 22:27 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 18/19] xfs: remove all xfs_bmbt_set_* helpers except for xfs_bmbt_set_all Christoph Hellwig
2017-09-20 22:27 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 19/19] xfs: remove xfs_bmbt_get_state Christoph Hellwig
2017-09-20 22:28 ` Darrick J. Wong
-- strict thread matches above, loose matches on Subject: below --
2017-09-22 13:59 refactor extent manipulation V4 Christoph Hellwig
2017-09-22 13:59 ` [PATCH 02/19] xfs: use xfs_iext_get_extent instead of open coding it Christoph Hellwig
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