diff options
| author | Steve French <stfrench@microsoft.com> | 2019-09-11 00:07:36 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-09-16 11:43:38 -0500 |
| commit | 7dcc82c2dfd5f12eba19d19d39c50bff70b4f94a (patch) | |
| tree | 747ebf69fae8d2004d3d601039058d6dfbb0080e /fs/cifs/smb2ops.c | |
| parent | 1b63f1840e787516bf2d3e5c27c2d22fe23cfb37 (diff) | |
smb3: improve handling of share deleted (and share recreated)
When a share is deleted, returning EIO is confusing and no useful
information is logged. Improve the handling of this case by
at least logging a better error for this (and also mapping the error
differently to EREMCHG). See e.g. the new messages that would be logged:
[55243.639530] server share \\192.168.1.219\scratch deleted
[55243.642568] CIFS VFS: \\192.168.1.219\scratch BAD_NETWORK_NAME: \\192.168.1.219\scratch
In addition for the case where a share is deleted and then recreated
with the same name, have now fixed that so it works. This is sometimes
done for example, because the admin had to move a share to a different,
bigger local drive when a share is running low on space.
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/smb2ops.c')
| -rw-r--r-- | fs/cifs/smb2ops.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 9b74149b471f..3672ce0bfbaf 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -741,8 +741,14 @@ int open_shroot(unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid *pfid) /* Cached root is still invalid, continue normaly */ - if (rc) + if (rc) { + if (rc == -EREMCHG) { + tcon->need_reconnect = true; + printk_once(KERN_WARNING "server share %s deleted\n", + tcon->treeName); + } goto oshr_exit; + } o_rsp = (struct smb2_create_rsp *)rsp_iov[0].iov_base; oparms.fid->persistent_fid = o_rsp->PersistentFileId; @@ -2237,6 +2243,11 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon, resp_buftype, rsp_iov); if (rc) { free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); + if (rc == -EREMCHG) { + tcon->need_reconnect = true; + printk_once(KERN_WARNING "server share %s deleted\n", + tcon->treeName); + } goto qic_exit; } *rsp = rsp_iov[1]; |