From: "Darrick J. Wong" <djwong@kernel.org>
To: allison.henderson@oracle.com
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH v4 18/27] xfs: remove parent pointers in unlink
Date: Tue, 25 Oct 2022 14:14:58 -0700 [thread overview]
Message-ID: <Y1hR0kBgpscTNzLK@magnolia> (raw)
In-Reply-To: <20221021222936.934426-19-allison.henderson@oracle.com>
On Fri, Oct 21, 2022 at 03:29:27PM -0700, allison.henderson@oracle.com wrote:
> From: Allison Henderson <allison.henderson@oracle.com>
>
> This patch removes the parent pointer attribute during unlink
>
> Signed-off-by: Dave Chinner <dchinner@redhat.com>
> Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
> ---
> fs/xfs/libxfs/xfs_attr.c | 2 +-
> fs/xfs/libxfs/xfs_attr.h | 1 +
> fs/xfs/libxfs/xfs_parent.c | 17 +++++++++++++++
> fs/xfs/libxfs/xfs_parent.h | 4 ++++
> fs/xfs/xfs_inode.c | 44 ++++++++++++++++++++++++++++++++------
> 5 files changed, 60 insertions(+), 8 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index 805aaa5639d2..e967728d1ee7 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -946,7 +946,7 @@ xfs_attr_defer_replace(
> }
>
> /* Removes an attribute for an inode as a deferred operation */
> -static int
> +int
> xfs_attr_defer_remove(
> struct xfs_da_args *args)
> {
> diff --git a/fs/xfs/libxfs/xfs_attr.h b/fs/xfs/libxfs/xfs_attr.h
> index 0cf23f5117ad..033005542b9e 100644
> --- a/fs/xfs/libxfs/xfs_attr.h
> +++ b/fs/xfs/libxfs/xfs_attr.h
> @@ -545,6 +545,7 @@ bool xfs_attr_is_leaf(struct xfs_inode *ip);
> int xfs_attr_get_ilocked(struct xfs_da_args *args);
> int xfs_attr_get(struct xfs_da_args *args);
> int xfs_attr_defer_add(struct xfs_da_args *args);
> +int xfs_attr_defer_remove(struct xfs_da_args *args);
> int xfs_attr_set(struct xfs_da_args *args);
> int xfs_attr_set_iter(struct xfs_attr_intent *attr);
> int xfs_attr_remove_iter(struct xfs_attr_intent *attr);
> diff --git a/fs/xfs/libxfs/xfs_parent.c b/fs/xfs/libxfs/xfs_parent.c
> index cf5ea8ce8bd3..c09f49b7c241 100644
> --- a/fs/xfs/libxfs/xfs_parent.c
> +++ b/fs/xfs/libxfs/xfs_parent.c
> @@ -125,6 +125,23 @@ xfs_parent_defer_add(
> return xfs_attr_defer_add(args);
> }
>
> +int
> +xfs_parent_defer_remove(
> + struct xfs_trans *tp,
> + struct xfs_inode *dp,
> + struct xfs_parent_defer *parent,
> + xfs_dir2_dataptr_t diroffset,
> + struct xfs_inode *child)
> +{
> + struct xfs_da_args *args = &parent->args;
> +
> + xfs_init_parent_name_rec(&parent->rec, dp, diroffset);
> + args->trans = tp;
> + args->dp = child;
> + args->hashval = xfs_da_hashname(args->name, args->namelen);
> + return xfs_attr_defer_remove(args);
> +}
> +
> void
> xfs_parent_cancel(
> xfs_mount_t *mp,
> diff --git a/fs/xfs/libxfs/xfs_parent.h b/fs/xfs/libxfs/xfs_parent.h
> index 9b8d0764aad6..1c506532c624 100644
> --- a/fs/xfs/libxfs/xfs_parent.h
> +++ b/fs/xfs/libxfs/xfs_parent.h
> @@ -27,6 +27,10 @@ int xfs_parent_init(xfs_mount_t *mp, struct xfs_parent_defer **parentp);
> int xfs_parent_defer_add(struct xfs_trans *tp, struct xfs_parent_defer *parent,
> struct xfs_inode *dp, struct xfs_name *parent_name,
> xfs_dir2_dataptr_t diroffset, struct xfs_inode *child);
> +int xfs_parent_defer_remove(struct xfs_trans *tp, struct xfs_inode *dp,
> + struct xfs_parent_defer *parent,
> + xfs_dir2_dataptr_t diroffset,
> + struct xfs_inode *child);
> void xfs_parent_cancel(xfs_mount_t *mp, struct xfs_parent_defer *parent);
> unsigned int xfs_pptr_calc_space_res(struct xfs_mount *mp,
> unsigned int namelen);
> diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
> index f2e7da1befa4..83cc52c2bcf1 100644
> --- a/fs/xfs/xfs_inode.c
> +++ b/fs/xfs/xfs_inode.c
> @@ -2472,6 +2472,19 @@ xfs_iunpin_wait(
> __xfs_iunpin_wait(ip);
> }
>
> +unsigned int
> +xfs_remove_space_res(
This probably needs to remove XFS_REMOVE_SPACE_RES (the macro) right?
With that fixed,
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
--D
> + struct xfs_mount *mp,
> + unsigned int namelen)
> +{
> + unsigned int ret = XFS_DIRREMOVE_SPACE_RES(mp);
> +
> + if (xfs_has_parent(mp))
> + ret += xfs_pptr_calc_space_res(mp, namelen);
> +
> + return ret;
> +}
> +
> /*
> * Removing an inode from the namespace involves removing the directory entry
> * and dropping the link count on the inode. Removing the directory entry can
> @@ -2501,16 +2514,18 @@ xfs_iunpin_wait(
> */
> int
> xfs_remove(
> - xfs_inode_t *dp,
> + struct xfs_inode *dp,
> struct xfs_name *name,
> - xfs_inode_t *ip)
> + struct xfs_inode *ip)
> {
> - xfs_mount_t *mp = dp->i_mount;
> - xfs_trans_t *tp = NULL;
> + struct xfs_mount *mp = dp->i_mount;
> + struct xfs_trans *tp = NULL;
> int is_dir = S_ISDIR(VFS_I(ip)->i_mode);
> int dontcare;
> int error = 0;
> uint resblks;
> + xfs_dir2_dataptr_t dir_offset;
> + struct xfs_parent_defer *parent = NULL;
>
> trace_xfs_remove(dp, name);
>
> @@ -2525,6 +2540,12 @@ xfs_remove(
> if (error)
> goto std_return;
>
> + if (xfs_has_parent(mp)) {
> + error = xfs_parent_init(mp, &parent);
> + if (error)
> + goto std_return;
> + }
> +
> /*
> * We try to get the real space reservation first, allowing for
> * directory btree deletion(s) implying possible bmap insert(s). If we
> @@ -2536,12 +2557,12 @@ xfs_remove(
> * the directory code can handle a reservationless update and we don't
> * want to prevent a user from trying to free space by deleting things.
> */
> - resblks = XFS_REMOVE_SPACE_RES(mp);
> + resblks = xfs_remove_space_res(mp, name->len);
> error = xfs_trans_alloc_dir(dp, &M_RES(mp)->tr_remove, ip, &resblks,
> &tp, &dontcare);
> if (error) {
> ASSERT(error != -ENOSPC);
> - goto std_return;
> + goto drop_incompat;
> }
>
> /*
> @@ -2595,12 +2616,18 @@ xfs_remove(
> if (error)
> goto out_trans_cancel;
>
> - error = xfs_dir_removename(tp, dp, name, ip->i_ino, resblks, NULL);
> + error = xfs_dir_removename(tp, dp, name, ip->i_ino, resblks, &dir_offset);
> if (error) {
> ASSERT(error != -ENOENT);
> goto out_trans_cancel;
> }
>
> + if (parent) {
> + error = xfs_parent_defer_remove(tp, dp, parent, dir_offset, ip);
> + if (error)
> + goto out_trans_cancel;
> + }
> +
> /*
> * If this is a synchronous mount, make sure that the
> * remove transaction goes to disk before returning to
> @@ -2625,6 +2652,9 @@ xfs_remove(
> out_unlock:
> xfs_iunlock(ip, XFS_ILOCK_EXCL);
> xfs_iunlock(dp, XFS_ILOCK_EXCL);
> + drop_incompat:
> + if (parent)
> + xfs_parent_cancel(mp, parent);
> std_return:
> return error;
> }
> --
> 2.25.1
>
next prev parent reply other threads:[~2022-10-25 21:15 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-21 22:29 [PATCH v4 00/27] Parent Pointers allison.henderson
2022-10-21 22:29 ` [PATCH v4 01/27] xfs: Add new name to attri/d allison.henderson
2022-10-25 19:09 ` Darrick J. Wong
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 02/27] xfs: Increase XFS_DEFER_OPS_NR_INODES to 5 allison.henderson
2022-10-28 1:52 ` Catherine Hoang
2022-10-21 22:29 ` [PATCH v4 03/27] xfs: Hold inode locks in xfs_ialloc allison.henderson
2022-10-28 1:54 ` Catherine Hoang
2022-10-21 22:29 ` [PATCH v4 04/27] xfs: Hold inode locks in xfs_trans_alloc_dir allison.henderson
2022-10-28 1:56 ` Catherine Hoang
2022-10-21 22:29 ` [PATCH v4 05/27] xfs: Hold inode locks in xfs_rename allison.henderson
2022-10-28 1:59 ` Catherine Hoang
2022-10-21 22:29 ` [PATCH v4 06/27] xfs: Expose init_xattrs in xfs_create_tmpfile allison.henderson
2022-10-25 19:13 ` Darrick J. Wong
2022-10-25 21:33 ` Darrick J. Wong
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 07/27] xfs: get directory offset when adding directory name allison.henderson
2022-10-28 2:02 ` Catherine Hoang
2022-10-21 22:29 ` [PATCH v4 08/27] xfs: get directory offset when removing " allison.henderson
2022-10-28 2:06 ` Catherine Hoang
2022-10-21 22:29 ` [PATCH v4 09/27] xfs: get directory offset when replacing a " allison.henderson
2022-10-21 22:29 ` [PATCH v4 10/27] xfs: add parent pointer support to attribute code allison.henderson
2022-10-21 22:29 ` [PATCH v4 11/27] xfs: define parent pointer xattr format allison.henderson
2022-10-21 22:29 ` [PATCH v4 12/27] xfs: Add xfs_verify_pptr allison.henderson
2022-10-21 22:29 ` [PATCH v4 13/27] xfs: Increase rename inode reservation allison.henderson
2022-10-25 19:15 ` Darrick J. Wong
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 14/27] xfs: extend transaction reservations for parent attributes allison.henderson
2022-10-25 20:55 ` Darrick J. Wong
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 15/27] xfs: parent pointer attribute creation allison.henderson
2022-10-25 21:11 ` Darrick J. Wong
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 16/27] xfs: add parent attributes to link allison.henderson
2022-10-25 20:58 ` Darrick J. Wong
2022-10-21 22:29 ` [PATCH v4 17/27] xfs: add parent attributes to symlink allison.henderson
2022-10-25 21:06 ` Darrick J. Wong
2022-10-21 22:29 ` [PATCH v4 18/27] xfs: remove parent pointers in unlink allison.henderson
2022-10-25 21:14 ` Darrick J. Wong [this message]
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 19/27] xfs: Add parent pointers to xfs_cross_rename allison.henderson
2022-10-25 21:32 ` Darrick J. Wong
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 20/27] xfs: Indent xfs_rename allison.henderson
2022-10-21 22:29 ` [PATCH v4 21/27] xfs: Add parent pointers to rename allison.henderson
2022-10-25 21:28 ` Darrick J. Wong
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 22/27] xfs: Add the parent pointer support to the superblock version 5 allison.henderson
2022-10-21 22:29 ` [PATCH v4 23/27] xfs: Add helper function xfs_attr_list_context_init allison.henderson
2022-10-21 22:29 ` [PATCH v4 24/27] xfs: Filter XFS_ATTR_PARENT for getfattr allison.henderson
2022-10-25 21:34 ` Darrick J. Wong
2022-10-26 7:40 ` Allison Henderson
2022-10-21 22:29 ` [PATCH v4 25/27] xfs: Add parent pointer ioctl allison.henderson
2022-10-21 22:29 ` [PATCH v4 26/27] xfs: fix unit conversion error in xfs_log_calc_max_attrsetm_res allison.henderson
2022-10-21 22:29 ` [PATCH v4 27/27] xfs: drop compatibility minimum log size computations for reflink allison.henderson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Y1hR0kBgpscTNzLK@magnolia \
--to=djwong@kernel.org \
--cc=allison.henderson@oracle.com \
--cc=linux-xfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.