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handling NFS4ERR_OPENMODE on read

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if read fails with NFS4ERR_OPENMODE, retry th read with a special stateid.
This commit is contained in:
Casey Bodley 2010-10-12 09:54:16 -04:00
parent 3b7c04e136
commit 04047a9b53
1 changed files with 7 additions and 1 deletions
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8
daemon/readwrite.c
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@ -30,6 +30,8 @@
#include "daemon_debug.h"
#include "util.h"
stateid4 special_read_stateid = {0xffffffff,
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}};
int parse_rw(unsigned char *buffer, uint32_t length, nfs41_upcall *upcall)
{
@ -81,10 +83,14 @@ static int read_from_mds(
status = nfs41_read(session, file, stateid,
offset + reloffset, chunk, p, &bytes_read, &eof);
if (status && !len) {
if (status == NFS4ERR_OPENMODE && !len) {
stateid = &special_read_stateid;
continue;
} else if (status && !len) {
status = nfs_to_windows_error(status, ERROR_NET_WRITE_FAULT);
goto out;
}
p += bytes_read;
to_rcv -= bytes_read;
len += bytes_read;