diff options
Diffstat (limited to 'fs/gfs2/glock.c')
| -rw-r--r-- | fs/gfs2/glock.c | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 63981e2fb83..d636b3e80f5 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -764,7 +764,7 @@ static void state_change(struct gfs2_glock *gl, unsigned int new_state) 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)); @@ -772,8 +772,14 @@ static void drop_bh(struct gfs2_glock *gl, unsigned int ret) state_change(gl, LM_ST_UNLOCKED); - if (glops->go_inval) - glops->go_inval(gl, DIO_METADATA); + if (test_and_clear_bit(GLF_CONV_DEADLK, &gl->gl_flags)) { + spin_lock(&gl->gl_spin); + gh->gh_error = 0; + spin_unlock(&gl->gl_spin); + gfs2_glock_xmote_th(gl, gl->gl_req_gh); + gfs2_glock_put(gl); + return; + } spin_lock(&gl->gl_spin); gfs2_demote_wake(gl); @@ -794,7 +800,6 @@ static void xmote_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; - int prev_state = gl->gl_state; int op_done = 1; if (!gh && (ret & LM_OUT_ST_MASK) == LM_ST_UNLOCKED) { @@ -808,16 +813,6 @@ static void xmote_bh(struct gfs2_glock *gl, unsigned int ret) state_change(gl, ret & LM_OUT_ST_MASK); - if (prev_state != LM_ST_UNLOCKED && !(ret & LM_OUT_CACHEABLE)) { - if (glops->go_inval) - glops->go_inval(gl, DIO_METADATA); - } else if (gl->gl_state == LM_ST_DEFERRED) { - /* We might not want to do this here. - Look at moving to the inode glops. */ - if (glops->go_inval) - glops->go_inval(gl, 0); - } - /* Deal with each possible exit condition */ if (!gh) { @@ -837,6 +832,14 @@ static void xmote_bh(struct gfs2_glock *gl, unsigned int ret) } } else { spin_lock(&gl->gl_spin); + if (ret & LM_OUT_CONV_DEADLK) { + gh->gh_error = 0; + set_bit(GLF_CONV_DEADLK, &gl->gl_flags); + spin_unlock(&gl->gl_spin); + gfs2_glock_drop_th(gl); + gfs2_glock_put(gl); + return; + } list_del_init(&gh->gh_list); gh->gh_error = -EIO; if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags))) @@ -910,6 +913,8 @@ static void gfs2_glock_xmote_th(struct gfs2_glock *gl, struct gfs2_holder *gh) if (glops->go_xmote_th) glops->go_xmote_th(gl); + if (state == LM_ST_DEFERRED && glops->go_inval) + glops->go_inval(gl, DIO_METADATA); gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags)); gfs2_assert_warn(sdp, list_empty(&gl->gl_holders)); @@ -952,6 +957,8 @@ static void gfs2_glock_drop_th(struct gfs2_glock *gl) if (glops->go_xmote_th) glops->go_xmote_th(gl); + if (glops->go_inval) + glops->go_inval(gl, DIO_METADATA); gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags)); gfs2_assert_warn(sdp, list_empty(&gl->gl_holders)); |