This is a note to let you know that I've just added the patch titled
cifs: Fix inability to write files >2GB to SMB2/3 shares
to the 3.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cifs-fix-inability-to-write-files-2gb-to-smb2-3-shares.patch
and it can be found in the queue-3.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2f6c9479633780ba4a3484bba7eba5a721a5cf20 Mon Sep 17 00:00:00 2001
From: Jan Klos <honza.klos@xxxxxxxxx>
Date: Sun, 6 Oct 2013 21:08:20 +0200
Subject: cifs: Fix inability to write files >2GB to SMB2/3 shares
From: Jan Klos <honza.klos@xxxxxxxxx>
commit 2f6c9479633780ba4a3484bba7eba5a721a5cf20 upstream.
When connecting to SMB2/3 shares, maximum file size is set to non-LFS maximum in superblock. This is due to cap_large_files bit being different for SMB1 and SMB2/3 (where it is just an internal flag that is not negotiated and the SMB1 one corresponds to multichannel capability, so maybe LFS works correctly if server sends 0x08 flag) while capabilities are checked always for the SMB1 bit in cifs_read_super().
The patch fixes this by checking for the correct bit according to the protocol version.
Signed-off-by: Jan Klos <honza.klos@xxxxxxxxx>
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Steve French <smfrench@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/cifs/cifsfs.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -120,14 +120,16 @@ cifs_read_super(struct super_block *sb)
{
struct inode *inode;
struct cifs_sb_info *cifs_sb;
+ struct cifs_tcon *tcon;
int rc = 0;
cifs_sb = CIFS_SB(sb);
+ tcon = cifs_sb_master_tcon(cifs_sb);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIXACL)
sb->s_flags |= MS_POSIXACL;
- if (cifs_sb_master_tcon(cifs_sb)->ses->capabilities & CAP_LARGE_FILES)
+ if (tcon->ses->capabilities & tcon->ses->server->vals->cap_large_files)
sb->s_maxbytes = MAX_LFS_FILESIZE;
else
sb->s_maxbytes = MAX_NON_LFS;
@@ -147,7 +149,7 @@ cifs_read_super(struct super_block *sb)
goto out_no_root;
}
- if (cifs_sb_master_tcon(cifs_sb)->nocase)
+ if (tcon->nocase)
sb->s_d_op = &cifs_ci_dentry_ops;
else
sb->s_d_op = &cifs_dentry_ops;
Patches currently in stable-queue which might be from honza.klos@xxxxxxxxx are
queue-3.11/cifs-fix-inability-to-write-files-2gb-to-smb2-3-shares.patch
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