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hash: handle $BEESHOME on btrfs too

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The `_nothrow` variants of `do_ioctl` return true when they succeed,
which is the opposite of what `ioctl` does.

Fix the logic so bees can correctly identify its own hash table when
it's on the same filesystem as the target.

Fixes: f6908420adcf3fbafef8bbde8a25f8bac65424b6 ("hash: handle $BEESHOME on non-btrfs")
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell 2025-02-17 21:12:29 -05:00
parent a670aa5a71
commit 47243aef14
1 changed files with 2 additions and 1 deletions
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3
src/bees-hash.cc
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@ -819,7 +819,8 @@ BeesHashTable::BeesHashTable(shared_ptr<BeesContext> ctx, string filename, off_t
root_info.do_ioctl(m_ctx->root_fd());
// Hash might not be a btrfs
BtrfsIoctlFsInfoArgs hash_info;
if (hash_info.do_ioctl_nothrow(m_fd)) return;
// If btrfs fs_info ioctl fails, it must be a different fs
if (!hash_info.do_ioctl_nothrow(m_fd)) return;
// If Hash is a btrfs, Root must be the same one
if (root_info.fsid() != hash_info.fsid()) return;
// Hash is on the same one, blacklist it