From abea81e6a722ebaa4b41ddffd7d52db28da8800f Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Fri, 5 Apr 2024 13:47:51 +0200 Subject: [PATCH] gfs2: Fix "ignore unlock failures after withdraw" [ Upstream commit 5d9231111966b6c5a65016d58dcbeab91055bc91 ] Commit 3e11e53041502 tries to suppress dlm_lock() lock conversion errors that occur when the lockspace has already been released. It does that by setting and checking the SDF_SKIP_DLM_UNLOCK flag. This conflicts with the intended meaning of the SDF_SKIP_DLM_UNLOCK flag, so check whether the lockspace is still allocated instead. (Given the current DLM API, checking for this kind of error after the fact seems easier that than to make sure that the lockspace is still allocated before calling dlm_lock(). Changing the DLM API so that users maintain the lockspace references themselves would be an option.) Fixes: 3e11e53041502 ("GFS2: ignore unlock failures after withdraw") Signed-off-by: Andreas Gruenbacher Signed-off-by: Sasha Levin --- fs/gfs2/glock.c | 4 +++- fs/gfs2/util.c | 1 - 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 4a280be229a6..207b7c23bc0f 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -785,11 +785,13 @@ skip_inval: } if (sdp->sd_lockstruct.ls_ops->lm_lock) { + struct lm_lockstruct *ls = &sdp->sd_lockstruct; + /* lock_dlm */ ret = sdp->sd_lockstruct.ls_ops->lm_lock(gl, target, lck_flags); if (ret == -EINVAL && gl->gl_target == LM_ST_UNLOCKED && target == LM_ST_UNLOCKED && - test_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags)) { + test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) { finish_xmote(gl, target); gfs2_glock_queue_work(gl, 0); } else if (ret) { diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c index da29fafb6272..d424691bd3f8 100644 --- a/fs/gfs2/util.c +++ b/fs/gfs2/util.c @@ -350,7 +350,6 @@ int gfs2_withdraw(struct gfs2_sbd *sdp) fs_err(sdp, "telling LM to unmount\n"); lm->lm_unmount(sdp); } - set_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags); fs_err(sdp, "File system withdrawn\n"); dump_stack(); clear_bit(SDF_WITHDRAW_IN_PROG, &sdp->sd_flags);