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smb: smbdirect: introduce smbdirect_get_buf_page_count()

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This is a copy of get_buf_page_count() in the server
and will replace it soon.

The only difference is that we now use size_t instead
of int.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Stefan Metzmacher 2025-09-19 09:36:14 +02:00 committed by Steve French
parent a515979524
commit dc01504c90
1 changed files with 6 additions and 0 deletions
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6
fs/smb/common/smbdirect/smbdirect_socket.h
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@ -734,4 +734,10 @@ struct smbdirect_rw_io {
struct scatterlist sg_list[];
};
static inline size_t smbdirect_get_buf_page_count(const void *buf, size_t size)
{
return DIV_ROUND_UP((uintptr_t)buf + size, PAGE_SIZE) -
(uintptr_t)buf / PAGE_SIZE;
}
#endif /* __FS_SMB_COMMON_SMBDIRECT_SMBDIRECT_SOCKET_H__ */