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authorStefan Metzmacher <metze@samba.org>2008-02-22 11:52:17 +0100
committerStefan Metzmacher <metze@samba.org>2008-02-26 09:32:59 +0100
commit61e17794c394d2c070ce7df9cee6c53d846e7b75 (patch)
tree9e442df1c5231701bf3eb11905062b30b5673aed /source4/ntvfs/posix
parentc0d1543a6a5fee3d767a366186dd634a395c8146 (diff)
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pvfs_unlink: retry unlink after oplock not granted
metze (This used to be commit 746e89ce2e74dbd2cea8f5575c403e4c61f82cb8)
Diffstat (limited to 'source4/ntvfs/posix')
-rw-r--r--source4/ntvfs/posix/pvfs_open.c26
-rw-r--r--source4/ntvfs/posix/pvfs_unlink.c94
2 files changed, 113 insertions, 7 deletions
diff --git a/source4/ntvfs/posix/pvfs_open.c b/source4/ntvfs/posix/pvfs_open.c
index 8429c14d1b..4110df292d 100644
--- a/source4/ntvfs/posix/pvfs_open.c
+++ b/source4/ntvfs/posix/pvfs_open.c
@@ -1008,7 +1008,8 @@ static NTSTATUS pvfs_open_setup_retry(struct ntvfs_module_context *ntvfs,
struct ntvfs_request *req,
union smb_open *io,
struct pvfs_file *f,
- struct odb_lock *lck)
+ struct odb_lock *lck,
+ NTSTATUS parent_status)
{
struct pvfs_state *pvfs = ntvfs->private_data;
NTSTATUS status;
@@ -1027,7 +1028,15 @@ static NTSTATUS pvfs_open_setup_retry(struct ntvfs_module_context *ntvfs,
/* the retry should allocate a new file handle */
talloc_free(f);
- end_time = timeval_add(&req->statistics.request_time, 0, pvfs->sharing_violation_delay);
+ if (NT_STATUS_EQUAL(parent_status, NT_STATUS_SHARING_VIOLATION)) {
+ end_time = timeval_add(&req->statistics.request_time,
+ 0, pvfs->sharing_violation_delay);
+ } else if (NT_STATUS_EQUAL(parent_status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+ end_time = timeval_add(&req->statistics.request_time,
+ pvfs->oplock_break_timeout, 0);
+ } else {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
return pvfs_odb_retry_setup(ntvfs, req, lck, end_time, io, NULL,
pvfs_retry_open_sharing);
@@ -1253,11 +1262,16 @@ NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
io->generic.in.open_disposition,
false, oplock_level, &oplock_granted);
- /* on a sharing violation we need to retry when the file is closed by
- the other user, or after 1 second */
- if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) &&
+ /*
+ * on a sharing violation we need to retry when the file is closed by
+ * the other user, or after 1 second
+ * on a non granted oplock we need to retry when the file is closed by
+ * the other user, or after 30 seconds
+ */
+ if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+ NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
- return pvfs_open_setup_retry(ntvfs, req, io, f, lck);
+ return pvfs_open_setup_retry(ntvfs, req, io, f, lck, status);
}
if (!NT_STATUS_IS_OK(status)) {
diff --git a/source4/ntvfs/posix/pvfs_unlink.c b/source4/ntvfs/posix/pvfs_unlink.c
index bda4014bee..7a2d964b9d 100644
--- a/source4/ntvfs/posix/pvfs_unlink.c
+++ b/source4/ntvfs/posix/pvfs_unlink.c
@@ -23,6 +23,84 @@
#include "vfs_posix.h"
#include "system/dir.h"
+/*
+ retry an open after a sharing violation
+*/
+static void pvfs_retry_unlink(struct pvfs_odb_retry *r,
+ struct ntvfs_module_context *ntvfs,
+ struct ntvfs_request *req,
+ void *_io,
+ void *private_data,
+ enum pvfs_wait_notice reason)
+{
+ union smb_unlink *io = talloc_get_type(_io, union smb_unlink);
+ NTSTATUS status = NT_STATUS_INTERNAL_ERROR;
+
+ talloc_free(r);
+
+ switch (reason) {
+ case PVFS_WAIT_CANCEL:
+/*TODO*/
+ status = NT_STATUS_CANCELLED;
+ break;
+ case PVFS_WAIT_TIMEOUT:
+ /* if it timed out, then give the failure
+ immediately */
+/*TODO*/
+ status = NT_STATUS_SHARING_VIOLATION;
+ break;
+ case PVFS_WAIT_EVENT:
+
+ /* try the open again, which could trigger another retry setup
+ if it wants to, so we have to unmark the async flag so we
+ will know if it does a second async reply */
+ req->async_states->state &= ~NTVFS_ASYNC_STATE_ASYNC;
+
+ status = pvfs_unlink(ntvfs, req, io);
+ if (req->async_states->state & NTVFS_ASYNC_STATE_ASYNC) {
+ /* the 2nd try also replied async, so we don't send
+ the reply yet */
+ return;
+ }
+
+ /* re-mark it async, just in case someone up the chain does
+ paranoid checking */
+ req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
+ break;
+ }
+
+ /* send the reply up the chain */
+ req->async_states->status = status;
+ req->async_states->send_fn(req);
+}
+
+/*
+ setup for a unlink retry after a sharing violation
+ or a non granted oplock
+*/
+static NTSTATUS pvfs_unlink_setup_retry(struct ntvfs_module_context *ntvfs,
+ struct ntvfs_request *req,
+ union smb_unlink *io,
+ struct odb_lock *lck,
+ NTSTATUS status)
+{
+ struct pvfs_state *pvfs = ntvfs->private_data;
+ struct timeval end_time;
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
+ end_time = timeval_add(&req->statistics.request_time,
+ 0, pvfs->sharing_violation_delay);
+ } else if (NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+ end_time = timeval_add(&req->statistics.request_time,
+ pvfs->oplock_break_timeout, 0);
+ } else {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ return pvfs_odb_retry_setup(ntvfs, req, lck, end_time, io, NULL,
+ pvfs_retry_unlink);
+}
+
/*
unlink a file
@@ -67,6 +145,7 @@ static NTSTATUS pvfs_unlink_one(struct pvfs_state *pvfs,
struct pvfs_filename *name)
{
NTSTATUS status;
+ struct odb_lock *lck = NULL;
/* make sure its matches the given attributes */
status = pvfs_match_attrib(pvfs, name,
@@ -75,7 +154,20 @@ static NTSTATUS pvfs_unlink_one(struct pvfs_state *pvfs,
return status;
}
- status = pvfs_can_delete(pvfs, req, name, NULL);
+ status = pvfs_can_delete(pvfs, req, name, &lck);
+
+ /*
+ * on a sharing violation we need to retry when the file is closed by
+ * the other user, or after 1 second
+ * on a non granted oplock we need to retry when the file is closed by
+ * the other user, or after 30 seconds
+ */
+ if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+ NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
+ (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+ return pvfs_unlink_setup_retry(pvfs->ntvfs, req, unl, lck, status);
+ }
+
if (!NT_STATUS_IS_OK(status)) {
return status;
}