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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2020-12-17 23:08:58 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:08:50 +0300 |
| commit | 07a1006ae81580c6a1b52b80e32fa9dadea1954b (patch) | |
| tree | 7ac1a004d0209465c211f71f00818d9d3f176075 /fs/bcachefs/reflink.c | |
| parent | 8deed5f4e547e675cf8c1de88720c23c3c3093ca (diff) | |
| download | linux-07a1006ae81580c6a1b52b80e32fa9dadea1954b.tar.xz | |
bcachefs: Reduce/kill BKEY_PADDED use
With various newer key types - stripe keys, inline data extents - the
old approach of calculating the maximum size of the value is becoming
more and more error prone. Better to switch to bkey_on_stack, which can
dynamically allocate if necessary to handle any size bkey.
In particular we also want to get rid of BKEY_EXTENT_VAL_U64s_MAX.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/reflink.c')
| -rw-r--r-- | fs/bcachefs/reflink.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/fs/bcachefs/reflink.c b/fs/bcachefs/reflink.c index 8abcbfb3bd64..930547de3309 100644 --- a/fs/bcachefs/reflink.c +++ b/fs/bcachefs/reflink.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include "bcachefs.h" -#include "bkey_on_stack.h" +#include "bkey_buf.h" #include "btree_update.h" #include "extents.h" #include "inode.h" @@ -198,8 +198,7 @@ s64 bch2_remap_range(struct bch_fs *c, struct btree_trans trans; struct btree_iter *dst_iter, *src_iter; struct bkey_s_c src_k; - BKEY_PADDED(k) new_dst; - struct bkey_on_stack new_src; + struct bkey_buf new_dst, new_src; struct bpos dst_end = dst_start, src_end = src_start; struct bpos dst_want, src_want; u64 src_done, dst_done; @@ -216,7 +215,8 @@ s64 bch2_remap_range(struct bch_fs *c, dst_end.offset += remap_sectors; src_end.offset += remap_sectors; - bkey_on_stack_init(&new_src); + bch2_bkey_buf_init(&new_dst); + bch2_bkey_buf_init(&new_src); bch2_trans_init(&trans, c, BTREE_ITER_MAX, 4096); src_iter = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS, src_start, @@ -257,7 +257,7 @@ s64 bch2_remap_range(struct bch_fs *c, break; if (src_k.k->type != KEY_TYPE_reflink_p) { - bkey_on_stack_reassemble(&new_src, c, src_k); + bch2_bkey_buf_reassemble(&new_src, c, src_k); src_k = bkey_i_to_s_c(new_src.k); bch2_cut_front(src_iter->pos, new_src.k); @@ -275,7 +275,7 @@ s64 bch2_remap_range(struct bch_fs *c, struct bkey_s_c_reflink_p src_p = bkey_s_c_to_reflink_p(src_k); struct bkey_i_reflink_p *dst_p = - bkey_reflink_p_init(&new_dst.k); + bkey_reflink_p_init(new_dst.k); u64 offset = le64_to_cpu(src_p.v->idx) + (src_iter->pos.offset - @@ -286,12 +286,12 @@ s64 bch2_remap_range(struct bch_fs *c, BUG(); } - new_dst.k.k.p = dst_iter->pos; - bch2_key_resize(&new_dst.k.k, + new_dst.k->k.p = dst_iter->pos; + bch2_key_resize(&new_dst.k->k, min(src_k.k->p.offset - src_iter->pos.offset, dst_end.offset - dst_iter->pos.offset)); - ret = bch2_extent_update(&trans, dst_iter, &new_dst.k, + ret = bch2_extent_update(&trans, dst_iter, new_dst.k, NULL, journal_seq, new_i_size, i_sectors_delta); if (ret) @@ -333,7 +333,8 @@ err: } while (ret2 == -EINTR); ret = bch2_trans_exit(&trans) ?: ret; - bkey_on_stack_exit(&new_src, c); + bch2_bkey_buf_exit(&new_src, c); + bch2_bkey_buf_exit(&new_dst, c); percpu_ref_put(&c->writes); |