diff options
| author | Jeff Mahoney <jeffm@suse.com> | 2016-06-22 18:56:44 -0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-12-06 16:06:57 +0100 |
| commit | c28f158e5ee78621ae693b8b18a9b89c7695af40 (patch) | |
| tree | d1ea17afb1fc82eae6f5c7bd61d23380f73d2db4 | |
| parent | de143792253e244322dfe19410db5294d62571ff (diff) | |
btrfs: struct reada_control.root -> reada_control.fs_info
The root is never used. We substitute extent_root in for the
reada_find_extent call, since it's only ever used to obtain the node
size. This call site will be changed to use fs_info in a later patch.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/ctree.h | 2 | ||||
| -rw-r--r-- | fs/btrfs/reada.c | 13 |
2 files changed, 8 insertions, 7 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 74110c7eebf1..9a3ca798087f 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3652,7 +3652,7 @@ static inline void btrfs_bio_counter_dec(struct btrfs_fs_info *fs_info) /* reada.c */ struct reada_control { - struct btrfs_root *root; /* tree to prefetch */ + struct btrfs_fs_info *fs_info; /* tree to prefetch */ struct btrfs_key key_start; struct btrfs_key key_end; /* exclusive */ atomic_t elems; diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c index f0beb63a6d82..540e729975be 100644 --- a/fs/btrfs/reada.c +++ b/fs/btrfs/reada.c @@ -544,17 +544,18 @@ static void reada_control_release(struct kref *kref) static int reada_add_block(struct reada_control *rc, u64 logical, struct btrfs_key *top, u64 generation) { - struct btrfs_root *root = rc->root; + struct btrfs_fs_info *fs_info = rc->fs_info; struct reada_extent *re; struct reada_extctl *rec; - re = reada_find_extent(root, logical, top); /* takes one ref */ + /* takes one ref */ + re = reada_find_extent(fs_info->tree_root, logical, top); if (!re) return -1; rec = kzalloc(sizeof(*rec), GFP_KERNEL); if (!rec) { - reada_extent_put(root->fs_info, re); + reada_extent_put(fs_info, re); return -ENOMEM; } @@ -914,7 +915,7 @@ struct reada_control *btrfs_reada_add(struct btrfs_root *root, if (!rc) return ERR_PTR(-ENOMEM); - rc->root = root; + rc->fs_info = root->fs_info; rc->key_start = *key_start; rc->key_end = *key_end; atomic_set(&rc->elems, 0); @@ -942,7 +943,7 @@ struct reada_control *btrfs_reada_add(struct btrfs_root *root, int btrfs_reada_wait(void *handle) { struct reada_control *rc = handle; - struct btrfs_fs_info *fs_info = rc->root->fs_info; + struct btrfs_fs_info *fs_info = rc->fs_info; while (atomic_read(&rc->elems)) { if (!atomic_read(&fs_info->reada_works_cnt)) @@ -963,7 +964,7 @@ int btrfs_reada_wait(void *handle) int btrfs_reada_wait(void *handle) { struct reada_control *rc = handle; - struct btrfs_fs_info *fs_info = rc->root->fs_info; + struct btrfs_fs_info *fs_info = rc->fs_info; while (atomic_read(&rc->elems)) { if (!atomic_read(&fs_info->reada_works_cnt)) |