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

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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) &&