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authorRonnie Sahlberg <lsahlber@redhat.com>2019-04-25 16:45:29 +1000
committerSteve French <stfrench@microsoft.com>2019-05-07 23:24:55 -0500
commit2f3ebaba13cebd8badfb9aed31c0cf3cc82eb4f4 (patch)
treecd2e5193de15784d7e50ce1a42d2a55ae8727f5f /fs/cifs/smb2pdu.c
parentd7bef4c4ebe4a2b1788d0214a08d69518e0de3cc (diff)
cifs: add fiemap support
Useful for improved copy performance as well as for applications which query allocated ranges of sparse files. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/smb2pdu.c')
-rw-r--r--fs/cifs/smb2pdu.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index a932dccafc5b..634800c0bc06 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2622,7 +2622,7 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
trace_smb3_fsctl_err(xid, persistent_fid, tcon->tid,
ses->Suid, 0, opcode, rc);
- if ((rc != 0) && (rc != -EINVAL)) {
+ if ((rc != 0) && (rc != -EINVAL) && (rc != -E2BIG)) {
cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
goto ioctl_exit;
} else if (rc == -EINVAL) {
@@ -2631,6 +2631,11 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
goto ioctl_exit;
}
+ } else if (rc == -E2BIG) {
+ if (opcode != FSCTL_QUERY_ALLOCATED_RANGES) {
+ cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
+ goto ioctl_exit;
+ }
}
/* check if caller wants to look at return data or just return rc */