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authorPavel Shilovsky <piastry@etersoft.ru>2012-12-06 22:07:52 +0400
committerSteve French <smfrench@gmail.com>2012-12-11 11:48:50 -0600
commitc299dd0e2d3dd61d0048a9d9b021aa01f023ed0c (patch)
tree5d3f913eea056a57b2d7086742f2d55b7d78c6f4 /fs/cifs/cifsfs.c
parentd387a5c50bca619d56f276a69627c2e1c6e5c548 (diff)
downloadlinux-c299dd0e2d3dd61d0048a9d9b021aa01f023ed0c.tar.bz2
CIFS: Fix write after setting a read lock for read oplock files
If we have a read oplock and set a read lock in it, we can't write to the locked area - so, filemap_fdatawrite may fail with a no information for a userspace application even if we request a write to non-locked area. Fix this by populating the page cache without marking affected pages dirty after a successful write directly to the server. Also remove CONFIG_CIFS_SMB2 ifdefs because it's suitable for both CIFS and SMB2 protocols. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/cifsfs.c')
-rw-r--r--fs/cifs/cifsfs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index c6e32f22fbd3..210f0af83fc4 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -229,6 +229,7 @@ cifs_alloc_inode(struct super_block *sb)
cifs_set_oplock_level(cifs_inode, 0);
cifs_inode->delete_pending = false;
cifs_inode->invalid_mapping = false;
+ cifs_inode->leave_pages_clean = false;
cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */
cifs_inode->server_eof = 0;
cifs_inode->uniqueid = 0;