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| author | Naohiro Aota <naohiro.aota@wdc.com> | 2022-07-09 08:18:50 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-07-25 17:45:42 +0200 |
| commit | 2ce543f478433a0eec0f72090d7e814f1d53d456 (patch) | |
| tree | 468257359ff4f00ee1b11ac4c52f90d5289c84c6 /fs/btrfs/inode.c | |
| parent | 898793d992c23dac6126a6a94ad893eae1a2c9df (diff) | |
| download | linux-2ce543f478433a0eec0f72090d7e814f1d53d456.tar.bz2 | |
btrfs: zoned: wait until zone is finished when allocation didn't progress
When the allocated position doesn't progress, we cannot submit IOs to
finish a block group, but there should be ongoing IOs that will finish a
block group. So, in that case, we wait for a zone to be finished and retry
the allocation after that.
Introduce a new flag BTRFS_FS_NEED_ZONE_FINISH for fs_info->flags to
indicate we need a zone finish to have proceeded. The flag is set when the
allocator detected it cannot activate a new block group. And, it is cleared
once a zone is finished.
CC: stable@vger.kernel.org # 5.16+
Fixes: afba2bc036b0 ("btrfs: zoned: implement active zone tracking")
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index a8f972835544..16789bbacf75 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1643,8 +1643,13 @@ static noinline int run_delalloc_zoned(struct btrfs_inode *inode, if (ret == 0) done_offset = end; - if (done_offset == start) - return -ENOSPC; + if (done_offset == start) { + struct btrfs_fs_info *info = inode->root->fs_info; + + wait_var_event(&info->zone_finish_wait, + !test_bit(BTRFS_FS_NEED_ZONE_FINISH, &info->flags)); + continue; + } if (!locked_page_done) { __set_page_dirty_nobuffers(locked_page); |