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| author |   David Sterba <dsterba@suse.com> | 2020-05-15 19:35:59 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-05-25 11:25:37 +0200 |
| commit | 0202e83fdab05b3bf641804afea57a2bfcbcbd70 (patch) | |
| tree | dba2e65e5900efb282f131cae714ae11d13f5412 /fs/btrfs/send.c | |
| parent | btrfs: open code read_fs_root (diff) | |
| download | wireguard-linux-0202e83fdab05b3bf641804afea57a2bfcbcbd70.tar.xz wireguard-linux-0202e83fdab05b3bf641804afea57a2bfcbcbd70.zip | |
btrfs: simplify iget helpers
The inode lookup starting at btrfs_iget takes the full location key,
while only the objectid is used to match the inode, because the lookup
happens inside the given root thus the inode number is unique.
The entire location key is properly set up in btrfs_init_locked_inode.
Simplify the helpers and pass only inode number, renaming it to 'ino'
instead of 'objectid'. This allows to remove temporary variables key,
saving some stack space.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/send.c')
| -rw-r--r-- | fs/btrfs/send.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 3ddd3b9778c7..0f37660b14b2 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -4806,17 +4806,12 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len) struct inode *inode; struct page *page; char *addr; - struct btrfs_key key; pgoff_t index = offset >> PAGE_SHIFT; pgoff_t last_index; unsigned pg_offset = offset_in_page(offset); ssize_t ret = 0; - key.objectid = sctx->cur_ino; - key.type = BTRFS_INODE_ITEM_KEY; - key.offset = 0; - - inode = btrfs_iget(fs_info->sb, &key, root); + inode = btrfs_iget(fs_info->sb, sctx->cur_ino, root); if (IS_ERR(inode)) return PTR_ERR(inode); |