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[CIFS] Add support for legacy servers part six. Fix read syntax so 

we do not request more than negotiated buffer size even if buffer
size is small (smaller than one page)

Signed-off-by: Steve French (sfrench@us.ibm.com)
This commit is contained in:
Steve French 2005-09-15 23:06:38 -07:00
parent eafe870121
commit f9f5c81769
1 changed files with 7 additions and 0 deletions
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7
fs/cifs/file.c
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@ -1278,6 +1278,13 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
total_read += bytes_read, current_offset += bytes_read) {
current_read_size = min_t(const int, read_size - total_read,
cifs_sb->rsize);
/* For windows me and 9x we do not want to request more
than it negotiated since it will refuse the read then */
if((pTcon->ses) &&
!(pTcon->ses->capabilities & CAP_LARGE_FILES)) {
current_read_size = min_t(const int, current_read_size,
pTcon->ses->server->maxBuf - 128);
}
rc = -EAGAIN;
while (rc == -EAGAIN) {
if ((open_file->invalidHandle) &&