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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2020-01-24 14:14:46 +0100 |
|---|---|---|
| committer | Bob Peterson <rpeterso@redhat.com> | 2020-03-27 14:08:04 -0500 |
| commit | 40e7e86ef16550c7371939c7025041b7740f252e (patch) | |
| tree | 5310932b9ee7244945e6d35e0634aaa47fbd5cdc /fs/gfs2/super.c | |
| parent | 490031281d5a33fbdab59e98e165c2cd30fc841b (diff) | |
| download | linux-40e7e86ef16550c7371939c7025041b7740f252e.tar.bz2 | |
gfs2: Clean up inode initialization and teardown
When allocating a new inode, mark the iopen glock holder as uninitialized to
make sure gfs2_evict_inode won't fail after an incomplete create or lookup. In
gfs2_evict_inode, allow the inode glock to be NULL and remove the duplicate
iopen glock teardown code. In gfs2_inode_lookup, don't tear down things that
gfs2_evict_inode will already tear down.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2/super.c')
| -rw-r--r-- | fs/gfs2/super.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 693c6d13473c..d664b0175946 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -1393,14 +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); @@ -1413,18 +1405,23 @@ out: 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); } } @@ -1438,6 +1435,7 @@ 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; |