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| author | Steven Whitehouse <swhiteho@redhat.com> | 2008-02-12 15:28:21 +0000 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2008-03-31 10:41:01 +0100 |
| commit | 840ca0ec70903ce8e0fba1596460876c796e4f60 (patch) | |
| tree | fd9f86615fe0450cfb8d46bdd17fbea33fa1008f /fs/gfs2/glock.c | |
| parent | e23159d2a7b2df5bce5f0ee8d57d3292243abf66 (diff) | |
| download | linux-840ca0ec70903ce8e0fba1596460876c796e4f60.tar.gz linux-840ca0ec70903ce8e0fba1596460876c796e4f60.tar.bz2 linux-840ca0ec70903ce8e0fba1596460876c796e4f60.zip | |
[GFS2] Fix bug where we called drop_bh incorrectly
As a result of an earlier patch, drop_bh was being called in cases
when it shouldn't have been. Since we never have a gh in the drop
case and we always have a gh in the promote case, we can use that
extra information to tell which case has been seen.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2/glock.c')
| -rw-r--r-- | fs/gfs2/glock.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index d00dc37e3d51..63981e2fb835 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -765,7 +765,6 @@ static void drop_bh(struct gfs2_glock *gl, unsigned int ret) { struct gfs2_sbd *sdp = gl->gl_sbd; const struct gfs2_glock_operations *glops = gl->gl_ops; - struct gfs2_holder *gh = gl->gl_req_gh; gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags)); gfs2_assert_warn(sdp, list_empty(&gl->gl_holders)); @@ -776,23 +775,11 @@ static void drop_bh(struct gfs2_glock *gl, unsigned int ret) if (glops->go_inval) glops->go_inval(gl, DIO_METADATA); - if (gh) { - spin_lock(&gl->gl_spin); - list_del_init(&gh->gh_list); - gh->gh_error = 0; - spin_unlock(&gl->gl_spin); - } - spin_lock(&gl->gl_spin); gfs2_demote_wake(gl); - gl->gl_req_gh = NULL; clear_bit(GLF_LOCK, &gl->gl_flags); spin_unlock(&gl->gl_spin); - gfs2_glock_put(gl); - - if (gh) - gfs2_holder_wake(gh); } /** @@ -810,7 +797,7 @@ static void xmote_bh(struct gfs2_glock *gl, unsigned int ret) int prev_state = gl->gl_state; int op_done = 1; - if ((ret & LM_OUT_ST_MASK) == LM_ST_UNLOCKED) { + if (!gh && (ret & LM_OUT_ST_MASK) == LM_ST_UNLOCKED) { drop_bh(gl, ret); return; } |