FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=stable%2F7 2010-07-13T08:55:52Z 2010-07-13T08:55:52Z Konstantin Belousov kib@FreeBSD.org 2010-07-13T08:55:52Z urn:sha1:c020255075bb7323545513744326d2ed3325015b Calculate nshift only once. 2010-01-21T14:33:18Z John Baldwin jhb@FreeBSD.org 2010-01-21T14:33:18Z urn:sha1:5aa59907190a7e3c598fa247773a0037cddabdaa Add a new internal mount flag (MNTK_EXTENDED_SHARED) to indicate that a filesystem supports additional operations using shared vnode locks. Currently this is used to enable shared locks for open() and close() of read-only file descriptors. - When an ISOPEN namei() request is performed with LOCKSHARED, use a shared vnode lock for the leaf vnode only if the mount point has the extended shared flag set. - Set LOCKSHARED in vn_open_cred() for requests that specify O_RDONLY but not O_CREAT. - Use a shared vnode lock around VOP_CLOSE() if the file was opened with O_RDONLY and the mountpoint has the extended shared flag set. - Adjust md(4) to upgrade the vnode lock on the vnode it gets back from vn_open() since it now may only have a shared vnode lock. - Don't enable shared vnode locks on FIFO vnodes in ZFS and UFS since FIFO's require exclusive vnode locks for their open() and close() routines. (My recent MPSAFE patches for UDF and cd9660 already included this change.) - Enable extended shared operations on UFS, cd9660, and UDF. 2008-03-02T11:33:54Z Philip Paeps philip@FreeBSD.org 2008-03-02T11:33:54Z urn:sha1:613a7cc49c7855eb89db418770e80502384ad375 Zero sc->vnode if mdsetcred() fails. This fixes the panic which happens when mdcreate_vnode() calls vn_close() and mddestroy() calls it again further down the error handling path. 2007-06-05T00:00:57Z Jeff Roberson jeff@FreeBSD.org 2007-06-05T00:00:57Z urn:sha1:982d11f836278f1e95ae1ae398aa4d1d07a19006 - Use thread_lock() rather than sched_lock for per-thread scheduling sychronization. - Use the per-process spinlock rather than the sched_lock for per-process scheduling synchronization. Tested by: kris, current@ Tested on: i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc. Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each) 2007-05-31T11:51:53Z Konstantin Belousov kib@FreeBSD.org 2007-05-31T11:51:53Z urn:sha1:9e223287c05be2947379d5b6fdf4c8f8882b38f5 Change the VOP_OPEN(), vn_open() vnode operation and d_fdopen() cdev operation argument from being file descriptor index into the pointer to struct file. Proposed and reviewed by: jhb Reviewed by: daichi (unionfs) Approved by: re (kensmith) 2006-12-14T11:34:07Z Konstantin Belousov kib@FreeBSD.org 2006-12-14T11:34:07Z urn:sha1:3b7b5496a76fcbe068a95ab9b295d72e6cc26539 by vnode. Allow for md thread and the thread that owns lock on vnode backing the md device to do the write even when runningbufspace is exhausted. Tested by: Peter Holm Reviewed by: tegge MFC after: 2 weeks 2006-11-01T18:59:06Z Pawel Jakub Dawidek pjd@FreeBSD.org 2006-11-01T18:59:06Z urn:sha1:a777323904c3bfdba8be27e4744dfc85fb2a32bf 2006-11-01T18:56:18Z Pawel Jakub Dawidek pjd@FreeBSD.org 2006-11-01T18:56:18Z urn:sha1:5541f25ec790e943650784aca75aaa71e2f59e8c BIO_READ/BIO_WRITE is sent to vnode-backed provider (BIO_DELETE or BIO_FLUSH). Reported by: ceri Add support for BIO_FLUSH to vnode-backed md(4) devices based on VOP_FSYNC(). 2006-03-28T21:25:11Z John Baldwin jhb@FreeBSD.org 2006-03-28T21:25:11Z urn:sha1:a08d2e7fe13eb431f4a655abe4f0282b36c4625e mddestroy() only if the file is from a non-MPSAFE VFS. - No longer unconditionally hold Giant in the md kthread for vnode-backed kthreads. - Improve the handling of the thread exit race when destroying an md device. 2006-03-26T23:21:11Z Wojciech A. Koszek wkoszek@FreeBSD.org 2006-03-26T23:21:11Z urn:sha1:c27a89543317fff77f5fde1423b4c7053303075e a problem with listing large number of md(4) devices. Either 'list' or 'query' mode uses XML. Additionally, new functionality was introduced. It's possible to pass multiple devices to -u: # ./mdconfig -l -u md0,md1 Approved by: cognet (mentor)