On Tue, Jun 02, 2020 at 07:42:31AM +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
>
> Similar to inodes, we can call the dquot IO completion functions
> directly from the buffer completion code, removing another user of
> log item callbacks for IO completion processing.
>
> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
> ---
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
> fs/xfs/xfs_buf_item.c | 18 +++++++++++++++++-
> fs/xfs/xfs_dquot.c | 18 ++++++++++++++----
> fs/xfs/xfs_dquot.h | 1 +
> 3 files changed, 32 insertions(+), 5 deletions(-)
>
> diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
> index a4e416af5c614..f46e5ec28111c 100644
> --- a/fs/xfs/xfs_buf_item.c
> +++ b/fs/xfs/xfs_buf_item.c
> @@ -15,6 +15,9 @@
> #include "xfs_buf_item.h"
> #include "xfs_inode.h"
> #include "xfs_inode_item.h"
> +#include "xfs_quota.h"
> +#include "xfs_dquot_item.h"
> +#include "xfs_dquot.h"
> #include "xfs_trans_priv.h"
> #include "xfs_trace.h"
> #include "xfs_log.h"
> @@ -1209,7 +1212,20 @@ void
> xfs_buf_dquot_iodone(
> struct xfs_buf *bp)
> {
> - xfs_buf_run_callbacks(bp);
> + struct xfs_buf_log_item *blip = bp->b_log_item;
> + struct xfs_log_item *lip;
> +
> + if (xfs_buf_had_callback_errors(bp))
> + return;
> +
> + /* a newly allocated dquot buffer might have a log item attached */
> + if (blip) {
> + lip = &blip->bli_item;
> + lip->li_cb(bp, lip);
> + bp->b_log_item = NULL;
> + }
> +
> + xfs_dquot_done(bp);
> xfs_buf_ioend_finish(bp);
> }
>
> diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
> index 2e2146fa0914c..403bc4e9f21ff 100644
> --- a/fs/xfs/xfs_dquot.c
> +++ b/fs/xfs/xfs_dquot.c
> @@ -1048,9 +1048,8 @@ xfs_qm_dqrele(
> * from the AIL if it has not been re-logged, and unlocking the dquot's
> * flush lock. This behavior is very similar to that of inodes..
> */
> -STATIC void
> +static void
> xfs_qm_dqflush_done(
> - struct xfs_buf *bp,
> struct xfs_log_item *lip)
> {
> struct xfs_dq_logitem *qip = (struct xfs_dq_logitem *)lip;
> @@ -1091,6 +1090,18 @@ xfs_qm_dqflush_done(
> xfs_dqfunlock(dqp);
> }
>
> +void
> +xfs_dquot_done(
> + struct xfs_buf *bp)
> +{
> + struct xfs_log_item *lip, *n;
> +
> + list_for_each_entry_safe(lip, n, &bp->b_li_list, li_bio_list) {
> + list_del_init(&lip->li_bio_list);
> + xfs_qm_dqflush_done(lip);
> + }
> +}
> +
> /*
> * Write a modified dquot to disk.
> * The dquot must be locked and the flush lock too taken by caller.
> @@ -1180,8 +1191,7 @@ xfs_qm_dqflush(
> * AIL and release the flush lock once the dquot is synced to disk.
> */
> bp->b_flags |= _XBF_DQUOTS;
> - xfs_buf_attach_iodone(bp, xfs_qm_dqflush_done,
> - &dqp->q_logitem.qli_item);
> + xfs_buf_attach_iodone(bp, NULL, &dqp->q_logitem.qli_item);
>
> /*
> * If the buffer is pinned then push on the log so we won't
> diff --git a/fs/xfs/xfs_dquot.h b/fs/xfs/xfs_dquot.h
> index 71e36c85e20b6..fe9cc3e08ed6d 100644
> --- a/fs/xfs/xfs_dquot.h
> +++ b/fs/xfs/xfs_dquot.h
> @@ -174,6 +174,7 @@ void xfs_qm_dqput(struct xfs_dquot *dqp);
> void xfs_dqlock2(struct xfs_dquot *, struct xfs_dquot *);
>
> void xfs_dquot_set_prealloc_limits(struct xfs_dquot *);
> +void xfs_dquot_done(struct xfs_buf *);
>
> static inline struct xfs_dquot *xfs_qm_dqhold(struct xfs_dquot *dqp)
> {
> --
> 2.26.2.761.g0e0b3e54be
>
