Hi Jeff,
This could resolve the issue I mentioned in the fscrypt mail thread.
cp: cannot access './dir___683': No buffer space available
cp: cannot access './dir___686': No buffer space available
cp: cannot access './dir___687': No buffer space available
cp: cannot access './dir___688': No buffer space available
cp: cannot access './dir___689': No buffer space available
cp: cannot access './dir___693': No buffer space available
...
[root@lxbceph1 kcephfs]# diff ./dir___997 /data/backup/kernel/dir___997
diff: ./dir___997: No buffer space available
The dmesg logs:
<7>[ 1256.918228] ceph: do_getattr inode 0000000089964a71 mask AsXsFs
mode 040755
<7>[ 1256.918232] ceph: __ceph_caps_issued_mask ino 0x100000009be cap
0000000014f1c64b issued pAsLsXsFs (mask AsXsFs)
<7>[ 1256.918237] ceph: __touch_cap 0000000089964a71 cap
0000000014f1c64b mds0
<7>[ 1256.918250] ceph: readdir 0000000089964a71 file 00000000065cb689
pos 0
<7>[ 1256.918254] ceph: readdir off 0 -> '.'
<7>[ 1256.918258] ceph: readdir off 1 -> '..'
<4>[ 1256.918262] fscrypt (ceph, inode 1099511630270): Error -105
getting encryption context
<7>[ 1256.918269] ceph: readdir 0000000089964a71 file 00000000065cb689
pos 2
<4>[ 1256.918273] fscrypt (ceph, inode 1099511630270): Error -105
getting encryption context
<7>[ 1256.918288] ceph: release inode 0000000089964a71 dir file
00000000065cb689
<7>[ 1256.918310] ceph: __ceph_caps_issued_mask ino 0x1 cap
00000000aa2afb8b issued pAsLsXsFs (mask Fs)
<7>[ 1257.574593] ceph: mdsc delayed_work
On 2/17/22 4:15 PM, xiubli@xxxxxxxxxx wrote:
From: Xiubo Li <xiubli@xxxxxxxxxx>
This potentially will cause bug in future if using the old ceph
version and some members may skipped initialized in handle_reply.
Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx>
---
fs/ceph/mds_client.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 93e5e3c4ba64..c3b1e73c5fbf 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2286,7 +2286,8 @@ int ceph_alloc_readdir_reply_buffer(struct ceph_mds_request *req,
order = get_order(size * num_entries);
while (order >= 0) {
rinfo->dir_entries = (void*)__get_free_pages(GFP_KERNEL |
- __GFP_NOWARN,
+ __GFP_NOWARN |
+ __GFP_ZERO,
order);
if (rinfo->dir_entries)
break;
