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GFS2: Fix debugfs glock file iterator

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Due to an incorrect iterator, some glocks were being missed from the
glock dumps obtained via debugfs. This patch fixes the problem and
ensures that we don't miss any glocks in future.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse 2008-07-22 22:58:03 +01:00
parent 30a2f3c60a
commit c1e817d03a
1 changed files with 6 additions and 5 deletions
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11
fs/gfs2/glock.c
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@ -1816,15 +1816,17 @@ static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
if (gl) {
gi->gl = hlist_entry(gl->gl_list.next,
struct gfs2_glock, gl_list);
if (gi->gl)
gfs2_glock_hold(gi->gl);
} else {
gi->gl = hlist_entry(gl_hash_table[gi->hash].hb_list.first,
struct gfs2_glock, gl_list);
}
if (gi->gl)
gfs2_glock_hold(gi->gl);
read_unlock(gl_lock_addr(gi->hash));
if (gl)
gfs2_glock_put(gl);
if (gl && gi->gl == NULL)
gi->hash++;
while (gi->gl == NULL) {
gi->hash++;
if (gi->hash >= GFS2_GL_HASH_SIZE)
return 1;
read_lock(gl_lock_addr(gi->hash));
@ -1833,7 +1835,6 @@ static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
if (gi->gl)
gfs2_glock_hold(gi->gl);
read_unlock(gl_lock_addr(gi->hash));
gi->hash++;
}
if (gi->sdp != gi->gl->gl_sbd)