From 89aa593010135660991d05c92528c2c9163d5900 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Fri, 8 Sep 2017 15:23:18 +0800 Subject: ceph: keep auth cap when inode has flocks or posix locks file locks are tracked by inode's auth mds. dropping auth caps is equivalent to releasing all file locks. Signed-off-by: "Yan, Zheng" Acked-by: Jeff Layton Signed-off-by: Ilya Dryomov --- fs/ceph/inode.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/ceph/inode.c') diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index f2550a076edc..6301bf299b7c 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -493,6 +493,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb) ci->i_wb_ref = 0; ci->i_wrbuffer_ref = 0; ci->i_wrbuffer_ref_head = 0; + atomic_set(&ci->i_filelock_ref, 0); ci->i_shared_gen = 0; ci->i_rdcache_gen = 0; ci->i_rdcache_revoking = 0; -- cgit From 933ad2c9c8bbb1623c2d3c5753ad340152e15d9d Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Tue, 10 Oct 2017 17:06:25 +0800 Subject: ceph: disable cached readdir after dropping positive dentry Ideally CEPH_CAP_FILE_SHARED should have been revoked before postive dentry get dropped. But if something goes wrong, later cached readdir may dereference the dropped dentry. Signed-off-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov --- fs/ceph/inode.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'fs/ceph/inode.c') diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 6301bf299b7c..16d8b9dac649 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1186,6 +1186,7 @@ retry_lookup: ceph_snap(d_inode(dn)) != tvino.snap)) { dout(" dn %p points to wrong inode %p\n", dn, d_inode(dn)); + ceph_dir_clear_ordered(dir); d_delete(dn); dput(dn); goto retry_lookup; @@ -1323,6 +1324,7 @@ retry_lookup: dout(" %p links to %p %llx.%llx, not %llx.%llx\n", dn, d_inode(dn), ceph_vinop(d_inode(dn)), ceph_vinop(in)); + ceph_dir_clear_ordered(dir); d_invalidate(dn); have_lease = false; } @@ -1574,6 +1576,7 @@ retry_lookup: ceph_snap(d_inode(dn)) != tvino.snap)) { dout(" dn %p points to wrong inode %p\n", dn, d_inode(dn)); + __ceph_dir_clear_ordered(ci); d_delete(dn); dput(dn); goto retry_lookup; @@ -1598,7 +1601,9 @@ retry_lookup: &req->r_caps_reservation); if (ret < 0) { pr_err("fill_inode badness on %p\n", in); - if (d_really_is_negative(dn)) + if (d_really_is_positive(dn)) + __ceph_dir_clear_ordered(ci); + else iput(in); d_drop(dn); err = ret; -- cgit From 81302565178cfa2d419f5e9743add02997c6b2dc Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 30 Oct 2017 10:58:30 -0400 Subject: ceph: remove the bump of i_version Eventually, we'll want to wire cephfs up to use the change attribute that the cluster tracks instead, but for now this is unneeded. Signed-off-by: Jeff Layton Reviewed-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov --- fs/ceph/inode.c | 1 - 1 file changed, 1 deletion(-) (limited to 'fs/ceph/inode.c') diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 16d8b9dac649..ab81652198c4 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -787,7 +787,6 @@ static int fill_inode(struct inode *inode, struct page *locked_page, /* update inode */ ci->i_version = le64_to_cpu(info->version); - inode->i_version++; inode->i_rdev = le32_to_cpu(info->rdev); inode->i_blkbits = fls(le32_to_cpu(info->layout.fl_stripe_unit)) - 1; -- cgit