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gfs2: print mapping->nrpages in glock dump for address space glocks 

This patch makes the glock dumps in debugfs print the number of pages
(nrpages) for address space glocks. This will aid in debugging.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Bob Peterson 2020-05-22 13:57:41 -05:00 committed by Andreas Gruenbacher
parent 1a0b00d15d
commit 7e901d6e95
1 changed files with 16 additions and 9 deletions
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25
fs/gfs2/glock.c
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@ -1978,7 +1978,13 @@ void gfs2_dump_glock(struct seq_file *seq, struct gfs2_glock *gl, bool fsid)
char gflags_buf[32];
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
char fs_id_buf[sizeof(sdp->sd_fsname) + 7];
unsigned long nrpages = 0;
if (gl->gl_ops->go_flags & GLOF_ASPACE) {
struct address_space *mapping = gfs2_glock2aspace(gl);
nrpages = mapping->nrpages;
}
memset(fs_id_buf, 0, sizeof(fs_id_buf));
if (fsid && sdp) /* safety precaution */
sprintf(fs_id_buf, "fsid=%s: ", sdp->sd_fsname);
@ -1987,15 +1993,16 @@ void gfs2_dump_glock(struct seq_file *seq, struct gfs2_glock *gl, bool fsid)
if (!test_bit(GLF_DEMOTE, &gl->gl_flags))
dtime = 0;
gfs2_print_dbg(seq, "%sG: s:%s n:%u/%llx f:%s t:%s d:%s/%llu a:%d "
"v:%d r:%d m:%ld\n", fs_id_buf, state2str(gl->gl_state),
gl->gl_name.ln_type,
(unsigned long long)gl->gl_name.ln_number,
gflags2str(gflags_buf, gl),
state2str(gl->gl_target),
state2str(gl->gl_demote_state), dtime,
atomic_read(&gl->gl_ail_count),
atomic_read(&gl->gl_revokes),
(int)gl->gl_lockref.count, gl->gl_hold_time);
"v:%d r:%d m:%ld p:%lu\n",
fs_id_buf, state2str(gl->gl_state),
gl->gl_name.ln_type,
(unsigned long long)gl->gl_name.ln_number,
gflags2str(gflags_buf, gl),
state2str(gl->gl_target),
state2str(gl->gl_demote_state), dtime,
atomic_read(&gl->gl_ail_count),
atomic_read(&gl->gl_revokes),
(int)gl->gl_lockref.count, gl->gl_hold_time, nrpages);
list_for_each_entry(gh, &gl->gl_holders, gh_list)
dump_holder(seq, gh, fs_id_buf);