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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2022-12-06 17:27:14 +0100 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2023-01-31 22:40:24 +0100 |
| commit | 6b388abc33998330c6fe55a712d61be888fd7b67 (patch) | |
| tree | 71d05d2b7c57fd4b3bd8d6a7eb10d35b8f9795e2 /fs/gfs2 | |
| parent | 6c0246a96e08cd1b5036c34c52de99bd9dffbb48 (diff) | |
| download | linux-6b388abc33998330c6fe55a712d61be888fd7b67.tar.gz | |
gfs2: Flush delete work before shrinking inode cache
In gfs2_kill_sb(), flush the delete work queue after setting the
SDF_DEACTIVATING flag. This ensures that no new inodes will be
instantiated anymore, and the inode cache will be empty after the
following kill_block_super() -> generic_shutdown_super() ->
evict_inodes() call.
With that, function gfs2_make_fs_ro() now calls gfs2_flush_delete_work()
after the workqueue has been destroyed. Skip that by checking for the
presence of the SDF_DEACTIVATING flag.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2')
| -rw-r--r-- | fs/gfs2/ops_fstype.c | 9 | ||||
| -rw-r--r-- | fs/gfs2/super.c | 6 |
2 files changed, 12 insertions, 3 deletions
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index c9fef0678320..9db376950014 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -1743,7 +1743,16 @@ static void gfs2_kill_sb(struct super_block *sb) sdp->sd_root_dir = NULL; sdp->sd_master_dir = NULL; shrink_dcache_sb(sb); + + /* + * Flush and then drain the delete workqueue here (via + * destroy_workqueue()) to ensure that any delete work that + * may be running will also see the SDF_DEACTIVATING flag. + */ set_bit(SDF_DEACTIVATING, &sdp->sd_flags); + gfs2_flush_delete_work(sdp); + destroy_workqueue(sdp->sd_delete_wq); + kill_block_super(sb); } diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 7b0bfe41b5cc..63512bb9d6f0 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -529,7 +529,9 @@ void gfs2_make_fs_ro(struct gfs2_sbd *sdp) { int log_write_allowed = test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags); - gfs2_flush_delete_work(sdp); + if (!test_bit(SDF_DEACTIVATING, &sdp->sd_flags)) + gfs2_flush_delete_work(sdp); + if (!log_write_allowed && current == sdp->sd_quotad_process) fs_warn(sdp, "The quotad daemon is withdrawing.\n"); else if (sdp->sd_quotad_process) @@ -630,8 +632,6 @@ restart: /* Unmount the locking protocol */ gfs2_lm_unmount(sdp); - destroy_workqueue(sdp->sd_delete_wq); - /* At this point, we're through participating in the lockspace */ gfs2_sys_fs_del(sdp); free_sbd(sdp); |