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authorPavel Shilovsky <piastry@etersoft.ru>2012-12-24 14:41:19 +0400
committerSteve French <smfrench@gmail.com>2013-01-01 23:04:30 -0600
commit63b7d3a41ccadef971a4ffbe6662119d4275ebf9 (patch)
tree02ccbd85b5628cc1cb4cb982c74514fe8d851fdb /fs/cifs/smb2ops.c
parent88cf75aaaf27a652b3e85960ac3060172dd3edac (diff)
downloadvexpress-lsk-63b7d3a41ccadef971a4ffbe6662119d4275ebf9.tar.gz
CIFS: Don't let read only caching for mandatory byte-range locked files
If we have mandatory byte-range locks on a file we can't cache reads because pagereading may have conflicts with these locks on the server. That's why we should allow level2 oplocks for files without mandatory locks only. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb2ops.c')
-rw-r--r--fs/cifs/smb2ops.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index d79de7bc443..c9c7aa7ed96 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -708,6 +708,7 @@ struct smb_version_values smb20_values = {
.cap_unix = 0,
.cap_nt_find = SMB2_NT_FIND,
.cap_large_files = SMB2_LARGE_FILES,
+ .oplock_read = SMB2_OPLOCK_LEVEL_II,
};
struct smb_version_values smb21_values = {
@@ -725,6 +726,7 @@ struct smb_version_values smb21_values = {
.cap_unix = 0,
.cap_nt_find = SMB2_NT_FIND,
.cap_large_files = SMB2_LARGE_FILES,
+ .oplock_read = SMB2_OPLOCK_LEVEL_II,
};
struct smb_version_values smb30_values = {