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| author | Steve French <sfrench@us.ibm.com> | 2005-12-12 20:53:18 -0800 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2005-12-12 20:53:18 -0800 |
| commit | ec637e3ffb6b978143652477c7c5f96c9519b691 (patch) | |
| tree | 32533b8f101e1d85b3499050eef29e78480e5cae /fs/cifs/cifspdu.h | |
| parent | c89a86bb96307019867d11874ef0b86adaa0598e (diff) | |
| download | lwn-ec637e3ffb6b978143652477c7c5f96c9519b691.tar.gz lwn-ec637e3ffb6b978143652477c7c5f96c9519b691.zip | |
[CIFS] Avoid extra large buffer allocation (and memcpy) in cifs_readpages
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifspdu.h')
| -rw-r--r-- | fs/cifs/cifspdu.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index 5253e779b3aa..3c09fb9cc569 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -80,7 +80,11 @@ #define NT_TRANSACT_GET_USER_QUOTA 0x07 #define NT_TRANSACT_SET_USER_QUOTA 0x08 -#define MAX_CIFS_HDR_SIZE 256 /* is future chained NTCreateXReadX bigger? */ +#define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */ +/* future chained NTCreateXReadX bigger, but for time being NTCreateX biggest */ +/* among the requests (NTCreateX response is bigger with wct of 34) */ +#define MAX_CIFS_HDR_SIZE 0x58 /* 4 len + 32 hdr + (2*24 wct) + 2 bct + 2 pad */ +#define CIFS_SMALL_PATH 120 /* allows for (448-88)/3 */ /* internal cifs vfs structures */ /***************************************************************** |