Commit 94443f43 authored by Pavel Shilovsky's avatar Pavel Shilovsky Committed by Steve French

CIFS: Fix incorrect max RFC1002 write size value

..the length field has only 17 bits.

Cc: <stable@kernel.org>
Acked-by: default avatarJeff Layton <jlayton@samba.org>
Signed-off-by: default avatarPavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
parent a52c1eb7
......@@ -2809,10 +2809,10 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
/*
* When the server doesn't allow large posix writes, only allow a wsize of
* 128k minus the size of the WRITE_AND_X header. That allows for a write up
* 2^17-1 minus the size of the WRITE_AND_X header. That allows for a write up
* to the maximum size described by RFC1002.
*/
#define CIFS_MAX_RFC1002_WSIZE (128 * 1024 - sizeof(WRITE_REQ) + 4)
#define CIFS_MAX_RFC1002_WSIZE ((1<<17) - 1 - sizeof(WRITE_REQ) + 4)
/*
* The default wsize is 1M. find_get_pages seems to return a maximum of 256
......
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