| Message ID | 20240702134851.2654558-1-leo.lilong@huawei.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | xfs: get rid of xfs_ag_resv_rmapbt_alloc | expand |
On Tue, Jul 02, 2024 at 09:48:51PM +0800, Long Li wrote: > The pag in xfs_ag_resv_rmapbt_alloc() is already held when the struct > xfs_btree_cur is initialized in xfs_rmapbt_init_cursor(), so there is no > need to get pag again. > > On the other hand, in xfs_rmapbt_free_block(), the similar function > xfs_ag_resv_rmapbt_free() was removed in commit 92a005448f6f ("xfs: get > rid of unnecessary xfs_perag_{get,put} pairs"), xfs_ag_resv_rmapbt_alloc() > was left because scrub used it, but now scrub has removed it. Therefore, > we could get rid of xfs_ag_resv_rmapbt_alloc() just like the rmap free > block, make the code cleaner. > > Signed-off-by: Long Li <leo.lilong@huawei.com> > --- > fs/xfs/libxfs/xfs_ag_resv.h | 19 ------------------- > fs/xfs/libxfs/xfs_rmap_btree.c | 8 +++++++- > 2 files changed, 7 insertions(+), 20 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_ag_resv.h b/fs/xfs/libxfs/xfs_ag_resv.h > index ff20ed93de77..f247eeff7358 100644 > --- a/fs/xfs/libxfs/xfs_ag_resv.h > +++ b/fs/xfs/libxfs/xfs_ag_resv.h > @@ -33,23 +33,4 @@ xfs_perag_resv( > } > } > > -/* > - * RMAPBT reservation accounting wrappers. Since rmapbt blocks are sourced from > - * the AGFL, they are allocated one at a time and the reservation updates don't > - * require a transaction. > - */ > -static inline void > -xfs_ag_resv_rmapbt_alloc( > - struct xfs_mount *mp, > - xfs_agnumber_t agno) > -{ > - struct xfs_alloc_arg args = { NULL }; > - struct xfs_perag *pag; > - > - args.len = 1; > - pag = xfs_perag_get(mp, agno); > - xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args); > - xfs_perag_put(pag); > -} > - > #endif /* __XFS_AG_RESV_H__ */ > diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c > index 9e759efa81cc..aa1d29814b74 100644 > --- a/fs/xfs/libxfs/xfs_rmap_btree.c > +++ b/fs/xfs/libxfs/xfs_rmap_btree.c > @@ -88,6 +88,7 @@ xfs_rmapbt_alloc_block( > struct xfs_buf *agbp = cur->bc_ag.agbp; > struct xfs_agf *agf = agbp->b_addr; > struct xfs_perag *pag = cur->bc_ag.pag; > + struct xfs_alloc_arg args = { NULL }; You could make this even more compact with struct xfs_alloc_arg args = { .len = 1 }; Otherwise this looks ok to me as a cleanup. --D > int error; > xfs_agblock_t bno; > > @@ -107,7 +108,12 @@ xfs_rmapbt_alloc_block( > be32_add_cpu(&agf->agf_rmap_blocks, 1); > xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_RMAP_BLOCKS); > > - xfs_ag_resv_rmapbt_alloc(cur->bc_mp, pag->pag_agno); > + /* > + * Since rmapbt blocks are sourced from the AGFL, they are allocated one > + * at a time and the reservation updates don't require a transaction. > + */ > + args.len = 1; > + xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args); > > *stat = 1; > return 0; > -- > 2.39.2 > >
On Tue, Jul 02, 2024 at 10:14:46PM -0700, Darrick J. Wong wrote: > On Tue, Jul 02, 2024 at 09:48:51PM +0800, Long Li wrote: > > The pag in xfs_ag_resv_rmapbt_alloc() is already held when the struct > > xfs_btree_cur is initialized in xfs_rmapbt_init_cursor(), so there is no > > need to get pag again. > > > > On the other hand, in xfs_rmapbt_free_block(), the similar function > > xfs_ag_resv_rmapbt_free() was removed in commit 92a005448f6f ("xfs: get > > rid of unnecessary xfs_perag_{get,put} pairs"), xfs_ag_resv_rmapbt_alloc() > > was left because scrub used it, but now scrub has removed it. Therefore, > > we could get rid of xfs_ag_resv_rmapbt_alloc() just like the rmap free > > block, make the code cleaner. > > > > Signed-off-by: Long Li <leo.lilong@huawei.com> > > --- > > fs/xfs/libxfs/xfs_ag_resv.h | 19 ------------------- > > fs/xfs/libxfs/xfs_rmap_btree.c | 8 +++++++- > > 2 files changed, 7 insertions(+), 20 deletions(-) > > > > diff --git a/fs/xfs/libxfs/xfs_ag_resv.h b/fs/xfs/libxfs/xfs_ag_resv.h > > index ff20ed93de77..f247eeff7358 100644 > > --- a/fs/xfs/libxfs/xfs_ag_resv.h > > +++ b/fs/xfs/libxfs/xfs_ag_resv.h > > @@ -33,23 +33,4 @@ xfs_perag_resv( > > } > > } > > > > -/* > > - * RMAPBT reservation accounting wrappers. Since rmapbt blocks are sourced from > > - * the AGFL, they are allocated one at a time and the reservation updates don't > > - * require a transaction. > > - */ > > -static inline void > > -xfs_ag_resv_rmapbt_alloc( > > - struct xfs_mount *mp, > > - xfs_agnumber_t agno) > > -{ > > - struct xfs_alloc_arg args = { NULL }; > > - struct xfs_perag *pag; > > - > > - args.len = 1; > > - pag = xfs_perag_get(mp, agno); > > - xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args); > > - xfs_perag_put(pag); > > -} > > - > > #endif /* __XFS_AG_RESV_H__ */ > > diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c > > index 9e759efa81cc..aa1d29814b74 100644 > > --- a/fs/xfs/libxfs/xfs_rmap_btree.c > > +++ b/fs/xfs/libxfs/xfs_rmap_btree.c > > @@ -88,6 +88,7 @@ xfs_rmapbt_alloc_block( > > struct xfs_buf *agbp = cur->bc_ag.agbp; > > struct xfs_agf *agf = agbp->b_addr; > > struct xfs_perag *pag = cur->bc_ag.pag; > > + struct xfs_alloc_arg args = { NULL }; > > You could make this even more compact with > > struct xfs_alloc_arg args = { .len = 1 }; It's ok for me, I will send a new version. thanks! > > Otherwise this looks ok to me as a cleanup. > > --D > > > int error; > > xfs_agblock_t bno; > > > > @@ -107,7 +108,12 @@ xfs_rmapbt_alloc_block( > > be32_add_cpu(&agf->agf_rmap_blocks, 1); > > xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_RMAP_BLOCKS); > > > > - xfs_ag_resv_rmapbt_alloc(cur->bc_mp, pag->pag_agno); > > + /* > > + * Since rmapbt blocks are sourced from the AGFL, they are allocated one > > + * at a time and the reservation updates don't require a transaction. > > + */ > > + args.len = 1; > > + xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args); > > > > *stat = 1; > > return 0; > > -- > > 2.39.2 > > > >
diff --git a/fs/xfs/libxfs/xfs_ag_resv.h b/fs/xfs/libxfs/xfs_ag_resv.h index ff20ed93de77..f247eeff7358 100644 --- a/fs/xfs/libxfs/xfs_ag_resv.h +++ b/fs/xfs/libxfs/xfs_ag_resv.h @@ -33,23 +33,4 @@ xfs_perag_resv( } } -/* - * RMAPBT reservation accounting wrappers. Since rmapbt blocks are sourced from - * the AGFL, they are allocated one at a time and the reservation updates don't - * require a transaction. - */ -static inline void -xfs_ag_resv_rmapbt_alloc( - struct xfs_mount *mp, - xfs_agnumber_t agno) -{ - struct xfs_alloc_arg args = { NULL }; - struct xfs_perag *pag; - - args.len = 1; - pag = xfs_perag_get(mp, agno); - xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args); - xfs_perag_put(pag); -} - #endif /* __XFS_AG_RESV_H__ */ diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c index 9e759efa81cc..aa1d29814b74 100644 --- a/fs/xfs/libxfs/xfs_rmap_btree.c +++ b/fs/xfs/libxfs/xfs_rmap_btree.c @@ -88,6 +88,7 @@ xfs_rmapbt_alloc_block( struct xfs_buf *agbp = cur->bc_ag.agbp; struct xfs_agf *agf = agbp->b_addr; struct xfs_perag *pag = cur->bc_ag.pag; + struct xfs_alloc_arg args = { NULL }; int error; xfs_agblock_t bno; @@ -107,7 +108,12 @@ xfs_rmapbt_alloc_block( be32_add_cpu(&agf->agf_rmap_blocks, 1); xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_RMAP_BLOCKS); - xfs_ag_resv_rmapbt_alloc(cur->bc_mp, pag->pag_agno); + /* + * Since rmapbt blocks are sourced from the AGFL, they are allocated one + * at a time and the reservation updates don't require a transaction. + */ + args.len = 1; + xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args); *stat = 1; return 0;
The pag in xfs_ag_resv_rmapbt_alloc() is already held when the struct xfs_btree_cur is initialized in xfs_rmapbt_init_cursor(), so there is no need to get pag again. On the other hand, in xfs_rmapbt_free_block(), the similar function xfs_ag_resv_rmapbt_free() was removed in commit 92a005448f6f ("xfs: get rid of unnecessary xfs_perag_{get,put} pairs"), xfs_ag_resv_rmapbt_alloc() was left because scrub used it, but now scrub has removed it. Therefore, we could get rid of xfs_ag_resv_rmapbt_alloc() just like the rmap free block, make the code cleaner. Signed-off-by: Long Li <leo.lilong@huawei.com> --- fs/xfs/libxfs/xfs_ag_resv.h | 19 ------------------- fs/xfs/libxfs/xfs_rmap_btree.c | 8 +++++++- 2 files changed, 7 insertions(+), 20 deletions(-)