From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
To: linux-btrfs@vger.kernel.org
Cc: Naohiro Aota <naohiro.aota@wdc.com>,
Damien Le Moal <damien.lemoal@wdc.com>,
Johannes Thumshirn <johannes.thumshirn@wdc.com>,
Qu Wenruo <wqu@suse.com>, Christoph Hellwig <hch@lst.de>,
Josef Bacik <josef@toxicpanda.com>
Subject: [PATCH RFC v2 4/8] btrfs: add boilerplate code to insert stripe entries for preallocated extents
Date: Wed, 29 Jun 2022 07:41:10 -0700 [thread overview]
Message-ID: <63f578dd3ad1061561ecb761202a08d6092310d2.1656513330.git.johannes.thumshirn@wdc.com> (raw)
In-Reply-To: <cover.1656513330.git.johannes.thumshirn@wdc.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
fs/btrfs/inode.c | 6 ++++++
fs/btrfs/raid-stripe-tree.c | 34 ++++++++++++++++++++++++++++++++++
fs/btrfs/raid-stripe-tree.h | 2 ++
3 files changed, 42 insertions(+)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9890782fe932..97e218a45165 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -55,6 +55,7 @@
#include "zoned.h"
#include "subpage.h"
#include "inode-item.h"
+#include "raid-stripe-tree.h"
struct btrfs_iget_args {
u64 ino;
@@ -9901,6 +9902,11 @@ static struct btrfs_trans_handle *insert_prealloc_file_extent(
if (qgroup_released < 0)
return ERR_PTR(qgroup_released);
+ ret = btrfs_insert_preallocated_raid_stripe(inode->root->fs_info,
+ start, len);
+ if (ret)
+ goto free_qgroup;
+
if (trans) {
ret = insert_reserved_file_extent(trans, inode,
file_offset, &stack_fi,
diff --git a/fs/btrfs/raid-stripe-tree.c b/fs/btrfs/raid-stripe-tree.c
index 360046a104c7..85d08f052a64 100644
--- a/fs/btrfs/raid-stripe-tree.c
+++ b/fs/btrfs/raid-stripe-tree.c
@@ -124,6 +124,40 @@ void btrfs_remove_ordered_stripe(struct btrfs_fs_info *fs_info,
kfree(stripe);
}
+int btrfs_insert_preallocated_raid_stripe(struct btrfs_fs_info *fs_info,
+ u64 start, u64 len)
+{
+ struct btrfs_io_context *bioc = NULL;
+ struct btrfs_ordered_stripe *stripe;
+ u64 map_length = len;
+ int ret;
+
+ if (!fs_info->stripe_root)
+ return 0;
+
+ ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, start, &map_length,
+ &bioc, 0);
+ if (ret)
+ return ret;
+
+ stripe = btrfs_lookup_ordered_stripe(fs_info, start);
+ if (!stripe) {
+ stripe = btrfs_add_ordered_stripe(fs_info, start, len,
+ bioc->num_stripes,
+ bioc->stripes);
+ if (IS_ERR(stripe))
+ return PTR_ERR(stripe);
+ } else {
+ spin_lock(&stripe->lock);
+ memcpy(stripe->stripes, bioc->stripes,
+ bioc->num_stripes * sizeof(struct btrfs_io_stripe));
+ spin_unlock(&stripe->lock);
+ btrfs_put_ordered_stripe(fs_info, stripe);
+ }
+
+ return 0;
+}
+
int btrfs_insert_raid_extent(struct btrfs_trans_handle *trans,
struct btrfs_ordered_stripe *stripe)
{
diff --git a/fs/btrfs/raid-stripe-tree.h b/fs/btrfs/raid-stripe-tree.h
index b9c40ef26dfa..1644515fcecb 100644
--- a/fs/btrfs/raid-stripe-tree.h
+++ b/fs/btrfs/raid-stripe-tree.h
@@ -18,6 +18,8 @@ struct btrfs_ordered_stripe {
int btrfs_insert_raid_extent(struct btrfs_trans_handle *trans,
struct btrfs_ordered_stripe *stripe);
+int btrfs_insert_preallocated_raid_stripe(struct btrfs_fs_info *fs_info,
+ u64 start, u64 len);
void btrfs_raid_stripe_update(struct work_struct *work);
struct btrfs_ordered_stripe *btrfs_lookup_ordered_stripe(
struct btrfs_fs_info *fs_info,
--
2.35.3
next prev parent reply other threads:[~2022-06-29 14:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-29 14:41 [PATCH RFC v2 0/8] btrfs: raid-stripe-tree draft patches Johannes Thumshirn
2022-06-29 14:41 ` [PATCH RFC v2 1/8] btrfs: add raid stripe tree definitions Johannes Thumshirn
2022-06-29 14:41 ` [PATCH RFC v2 2/8] btrfs: read raid-stripe-tree from disk Johannes Thumshirn
2022-06-29 14:41 ` [PATCH RFC v2 3/8] btrfs: add boilerplate code to insert raid extent Johannes Thumshirn
2022-06-29 14:41 ` Johannes Thumshirn [this message]
2022-06-29 14:41 ` [PATCH RFC v2 5/8] btrfs: add code to delete " Johannes Thumshirn
2022-06-29 14:41 ` [PATCH RFC v2 6/8] btrfs: add code to read " Johannes Thumshirn
2022-06-29 14:41 ` [PATCH RFC v2 7/8] btrfs: zoned: allow zoned RAID1 Johannes Thumshirn
2022-06-29 14:41 ` [PATCH RFC v2 8/8] btrfs: add raid stripe tree pretty printer Johannes Thumshirn
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