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| author | Jeremy Allison <jra@samba.org> | 2003-01-30 01:42:08 +0000 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2003-01-30 01:42:08 +0000 |
| commit | f26591b3ded7a4c691b1ebe75737da29f7b2b873 (patch) | |
| tree | b9cf7dcf2c74829f2bf01d085d41bd4659fb889d /source3/include | |
| parent | 4c9f6c5a31efc950389fba3474dea5b977a23152 (diff) | |
| download | samba-f26591b3ded7a4c691b1ebe75737da29f7b2b873.tar.gz samba-f26591b3ded7a4c691b1ebe75737da29f7b2b873.tar.bz2 samba-f26591b3ded7a4c691b1ebe75737da29f7b2b873.zip | |
Fix for interesting resource constraint condition. When all opens are
level 2 and a request for open with no oplock is received then the
smbd should send *synchronous* break messages, not asynchronous,
otherwise it spins very rapidly, releasing the lock, sending the
'break to none' messages and then re-acquiring the lock before
any other process has a chance to get the lock and remove it's own
oplock (at least on linux).
Jeremy.
(This used to be commit d1e8991a76a57b7d96dd7db3c1d9bbf5b28da88e)
Diffstat (limited to 'source3/include')
| -rw-r--r-- | source3/include/smb.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/source3/include/smb.h b/source3/include/smb.h index 3ca8d32289..8138555539 100644 --- a/source3/include/smb.h +++ b/source3/include/smb.h @@ -1512,15 +1512,17 @@ extern int chain_size; * +----+--------+-------+--------+---------+ */ -#define OPLOCK_BREAK_CMD 0x1 #define OPLOCK_BREAK_PID_OFFSET 2 #define OPLOCK_BREAK_DEV_OFFSET (OPLOCK_BREAK_PID_OFFSET + sizeof(pid_t)) #define OPLOCK_BREAK_INODE_OFFSET (OPLOCK_BREAK_DEV_OFFSET + sizeof(SMB_DEV_T)) #define OPLOCK_BREAK_FILEID_OFFSET (OPLOCK_BREAK_INODE_OFFSET + sizeof(SMB_INO_T)) #define OPLOCK_BREAK_MSG_LEN (OPLOCK_BREAK_FILEID_OFFSET + sizeof(unsigned long)) +/* Message types */ +#define OPLOCK_BREAK_CMD 0x1 #define KERNEL_OPLOCK_BREAK_CMD 0x2 #define LEVEL_II_OPLOCK_BREAK_CMD 0x3 +#define ASYNC_LEVEL_II_OPLOCK_BREAK_CMD 0x4 /* * Capabilities abstracted for different systems. |