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btrfs-progs: add commit_root_sem to btrfs_fs_info

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This is used in ctree.c around getting the old root, add this to our
btrfs_fs_info to make it more straightforward to sync ctree.c into
btrfs-progs.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2023-08-23 10:32:53 -04:00 committed by David Sterba
parent f7271ef547
commit ec9cbf2f43
2 changed files with 2 additions and 0 deletions
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1
kernel-shared/ctree.h
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@ -329,6 +329,7 @@ struct btrfs_fs_info {
struct extent_io_tree *excluded_extents; struct extent_io_tree *excluded_extents;
spinlock_t trans_lock; spinlock_t trans_lock;
struct rw_semaphore commit_root_sem;
struct rb_root block_group_cache_tree; struct rb_root block_group_cache_tree;
/* logical->physical extent mapping */ /* logical->physical extent mapping */

1
kernel-shared/disk-io.c
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@ -879,6 +879,7 @@ struct btrfs_fs_info *btrfs_new_fs_info(int writable, u64 sb_bytenr)
INIT_LIST_HEAD(&fs_info->recow_ebs); INIT_LIST_HEAD(&fs_info->recow_ebs);
spin_lock_init(&fs_info->trans_lock); spin_lock_init(&fs_info->trans_lock);
init_rwsem(&fs_info->commit_root_sem);
if (!writable) if (!writable)
fs_info->readonly = 1; fs_info->readonly = 1;