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Diffstat (limited to 'fs/gfs2/super.c')
-rw-r--r--fs/gfs2/super.c112
1 files changed, 75 insertions, 37 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 68cc7c291a81..37fc41632aa2 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -61,11 +61,13 @@ void gfs2_jindex_free(struct gfs2_sbd *sdp)
sdp->sd_journals = 0;
spin_unlock(&sdp->sd_jindex_spin);
+ sdp->sd_jdesc = NULL;
while (!list_empty(&list)) {
- jd = list_entry(list.next, struct gfs2_jdesc, jd_list);
+ jd = list_first_entry(&list, struct gfs2_jdesc, jd_list);
gfs2_free_journal_extents(jd);
list_del(&jd->jd_list);
iput(jd->jd_inode);
+ jd->jd_inode = NULL;
kfree(jd);
}
}
@@ -171,9 +173,13 @@ int gfs2_make_fs_rw(struct gfs2_sbd *sdp)
goto fail_threads;
j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
+ if (gfs2_withdrawn(sdp)) {
+ error = -EIO;
+ goto fail;
+ }
error = gfs2_find_jhead(sdp->sd_jdesc, &head, false);
- if (error)
+ if (error || gfs2_withdrawn(sdp))
goto fail;
if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT)) {
@@ -187,7 +193,7 @@ int gfs2_make_fs_rw(struct gfs2_sbd *sdp)
gfs2_log_pointers_init(sdp, head.lh_blkno);
error = gfs2_quota_init(sdp);
- if (error)
+ if (error || gfs2_withdrawn(sdp))
goto fail;
set_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
@@ -446,7 +452,7 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp)
out:
while (!list_empty(&list)) {
- lfcc = list_entry(list.next, struct lfcc, list);
+ lfcc = list_first_entry(&list, struct lfcc, list);
list_del(&lfcc->list);
gfs2_glock_dq_uninit(&lfcc->gh);
kfree(lfcc);
@@ -599,34 +605,63 @@ out:
int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
{
struct gfs2_holder freeze_gh;
- int error;
-
- error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED, GL_NOCACHE,
- &freeze_gh);
- if (error && !gfs2_withdrawn(sdp))
- return error;
+ int error = 0;
+ int log_write_allowed = test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
+
+ gfs2_holder_mark_uninitialized(&freeze_gh);
+ if (sdp->sd_freeze_gl &&
+ !gfs2_glock_is_locked_by_me(sdp->sd_freeze_gl)) {
+ if (!log_write_allowed) {
+ error = gfs2_glock_nq_init(sdp->sd_freeze_gl,
+ LM_ST_SHARED, GL_NOCACHE |
+ LM_FLAG_TRY, &freeze_gh);
+ if (error == GLR_TRYFAILED)
+ error = 0;
+ } else {
+ error = gfs2_glock_nq_init(sdp->sd_freeze_gl,
+ LM_ST_SHARED, GL_NOCACHE,
+ &freeze_gh);
+ if (error && !gfs2_withdrawn(sdp))
+ return error;
+ }
+ }
flush_workqueue(gfs2_delete_workqueue);
- if (sdp->sd_quotad_process)
+ if (!log_write_allowed && current == sdp->sd_quotad_process)
+ fs_warn(sdp, "The quotad daemon is withdrawing.\n");
+ else if (sdp->sd_quotad_process)
kthread_stop(sdp->sd_quotad_process);
sdp->sd_quotad_process = NULL;
- if (sdp->sd_logd_process)
+
+ if (!log_write_allowed && current == sdp->sd_logd_process)
+ fs_warn(sdp, "The logd daemon is withdrawing.\n");
+ else if (sdp->sd_logd_process)
kthread_stop(sdp->sd_logd_process);
sdp->sd_logd_process = NULL;
- gfs2_quota_sync(sdp->sd_vfs, 0);
- gfs2_statfs_sync(sdp->sd_vfs, 0);
-
- gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_SHUTDOWN |
- GFS2_LFC_MAKE_FS_RO);
- wait_event(sdp->sd_reserving_log_wait, atomic_read(&sdp->sd_reserving_log) == 0);
- gfs2_assert_warn(sdp, atomic_read(&sdp->sd_log_blks_free) == sdp->sd_jdesc->jd_blocks);
+ if (log_write_allowed) {
+ gfs2_quota_sync(sdp->sd_vfs, 0);
+ gfs2_statfs_sync(sdp->sd_vfs, 0);
+ gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_SHUTDOWN |
+ GFS2_LFC_MAKE_FS_RO);
+ wait_event(sdp->sd_reserving_log_wait,
+ atomic_read(&sdp->sd_reserving_log) == 0);
+ gfs2_assert_warn(sdp, atomic_read(&sdp->sd_log_blks_free) ==
+ sdp->sd_jdesc->jd_blocks);
+ } else {
+ wait_event_timeout(sdp->sd_reserving_log_wait,
+ atomic_read(&sdp->sd_reserving_log) == 0,
+ HZ * 5);
+ }
if (gfs2_holder_initialized(&freeze_gh))
gfs2_glock_dq_uninit(&freeze_gh);
gfs2_quota_cleanup(sdp);
+ if (!log_write_allowed)
+ sdp->sd_vfs->s_flags |= SB_RDONLY;
+
return error;
}
@@ -677,8 +712,10 @@ restart:
gfs2_glock_put(sdp->sd_freeze_gl);
if (!sdp->sd_args.ar_spectator) {
- gfs2_glock_dq_uninit(&sdp->sd_journal_gh);
- gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
+ if (gfs2_holder_initialized(&sdp->sd_journal_gh))
+ gfs2_glock_dq_uninit(&sdp->sd_journal_gh);
+ if (gfs2_holder_initialized(&sdp->sd_jinode_gh))
+ gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
iput(sdp->sd_sc_inode);
@@ -1356,14 +1393,6 @@ out_unlock:
if (gfs2_rs_active(&ip->i_res))
gfs2_rs_deltree(&ip->i_res);
- if (gfs2_holder_initialized(&ip->i_iopen_gh)) {
- glock_clear_object(ip->i_iopen_gh.gh_gl, ip);
- if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags)) {
- ip->i_iopen_gh.gh_flags |= GL_NOCACHE;
- gfs2_glock_dq(&ip->i_iopen_gh);
- }
- gfs2_holder_uninit(&ip->i_iopen_gh);
- }
if (gfs2_holder_initialized(&gh)) {
glock_clear_object(ip->i_gl, ip);
gfs2_glock_dq_uninit(&gh);
@@ -1372,22 +1401,30 @@ out_unlock:
fs_warn(sdp, "gfs2_evict_inode: %d\n", error);
out:
truncate_inode_pages_final(&inode->i_data);
- gfs2_rsqa_delete(ip, NULL);
+ if (ip->i_qadata)
+ gfs2_assert_warn(sdp, ip->i_qadata->qa_ref == 0);
+ gfs2_rs_delete(ip, NULL);
+ gfs2_qa_put(ip);
gfs2_ordered_del_inode(ip);
clear_inode(inode);
gfs2_dir_hash_inval(ip);
- glock_clear_object(ip->i_gl, ip);
- wait_on_bit_io(&ip->i_flags, GIF_GLOP_PENDING, TASK_UNINTERRUPTIBLE);
- gfs2_glock_add_to_lru(ip->i_gl);
- gfs2_glock_put_eventually(ip->i_gl);
- ip->i_gl = NULL;
+ if (ip->i_gl) {
+ glock_clear_object(ip->i_gl, ip);
+ wait_on_bit_io(&ip->i_flags, GIF_GLOP_PENDING, TASK_UNINTERRUPTIBLE);
+ gfs2_glock_add_to_lru(ip->i_gl);
+ gfs2_glock_put_eventually(ip->i_gl);
+ ip->i_gl = NULL;
+ }
if (gfs2_holder_initialized(&ip->i_iopen_gh)) {
struct gfs2_glock *gl = ip->i_iopen_gh.gh_gl;
glock_clear_object(gl, ip);
- ip->i_iopen_gh.gh_flags |= GL_NOCACHE;
+ if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags)) {
+ ip->i_iopen_gh.gh_flags |= GL_NOCACHE;
+ gfs2_glock_dq(&ip->i_iopen_gh);
+ }
gfs2_glock_hold(gl);
- gfs2_glock_dq_uninit(&ip->i_iopen_gh);
+ gfs2_holder_uninit(&ip->i_iopen_gh);
gfs2_glock_put_eventually(gl);
}
}
@@ -1401,6 +1438,7 @@ static struct inode *gfs2_alloc_inode(struct super_block *sb)
return NULL;
ip->i_flags = 0;
ip->i_gl = NULL;
+ gfs2_holder_mark_uninitialized(&ip->i_iopen_gh);
memset(&ip->i_res, 0, sizeof(ip->i_res));
RB_CLEAR_NODE(&ip->i_res.rs_node);
ip->i_rahead = 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.