diff options
| author |   David Sterba <dsterba@suse.com> | 2018-12-19 19:47:37 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-02-27 14:10:25 +0100 |
| commit | 7503b83d80f0a3da5dead1293f5454206e7f9db6 (patch) | |
| tree | eab3153af1def62923574438f992fc2cd7458af5 /fs/devpts | |
| parent | btrfs: save drop_progress if we drop refs at all (diff) | |
| download | linux-dev-7503b83d80f0a3da5dead1293f5454206e7f9db6.tar.xz linux-dev-7503b83d80f0a3da5dead1293f5454206e7f9db6.zip | |
btrfs: move ulist allocation out of transaction in quota enable
The allocation happens with GFP_KERNEL after a transaction has been
started, this can potentially cause deadlock if reclaim tries to get the
memory by flushing filesystem data.
The fs_info::qgroup_ulist is not used during transaction start when
quotas are not enabled. The status bit BTRFS_FS_QUOTA_ENABLED is set
later in btrfs_quota_enable so it's safe to move it before the
transaction start.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/devpts')
0 files changed, 0 insertions, 0 deletions