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| author | Pavel Shilovsky <piastry@etersoft.ru> | 2012-12-24 14:41:19 +0400 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2013-01-01 23:04:30 -0600 |
| commit | 63b7d3a41ccadef971a4ffbe6662119d4275ebf9 (patch) | |
| tree | 02ccbd85b5628cc1cb4cb982c74514fe8d851fdb /fs/cifs/smb2ops.c | |
| parent | 88cf75aaaf27a652b3e85960ac3060172dd3edac (diff) | |
| download | linux-stable-63b7d3a41ccadef971a4ffbe6662119d4275ebf9.tar.gz linux-stable-63b7d3a41ccadef971a4ffbe6662119d4275ebf9.tar.bz2 linux-stable-63b7d3a41ccadef971a4ffbe6662119d4275ebf9.zip | |
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.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index d79de7bc4435..c9c7aa7ed966 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 = { |