src/sys/fs, branch releng/4.7

MFC:

2002-04-30T08:33:11Z

Temporarily bandaid against UIO_NOCOPY case.

MFC: Check write permissions before create anything.

2002-04-22T04:18:58Z

Make HPFS use vop_defaultop instead of wrong hpfs_bypass(). This makes HPFS

2002-01-15T18:35:09Z

back usable. Approved by: rwatson, murray

MFC the following:

2001-12-25T01:44:45Z

* LK_TIMEOUT lock flag to separate lock acquisition with and without a timeout (dillon) * use of LK_TIMEOUT in BUF_TIMELOCK to avoid timeout race aginst BUF_LOCK (dillon) * use of LK_TIMEOUT in pageout vget() code to avoid deadlock (dillon) * move vnode reclaim into its own kthread to avoid deadlocks (Yahoo) * remove 'VXLOCK interlock avoided' messages.. they can occur under normal operation and create a choking hazzard on the console. * Adjust VMIGHTFREE macro used with vnode reclaim code to avoid eating large amounts of cpu with little to show for it in certain situations. * Add VREF/VRELE around UFS_UPDATE() call to avoid update/reclaim race (note: snuck in at last minute but I accidently did a partial commit a moment ago and the tree is broken until I commit the rest of it). This is minor and will be tested heavily. Approved by: Release Engineers

MFC rev 1.15: correct previous delta

2001-12-20T16:11:49Z

This applies bit of poetic license to the approval we have from to get smbfs into 4.5-RELEASE.

MFC rev 1.14: silence harmless "smbfs_closel: Negative opencount"

2001-12-20T11:25:29Z

messages at unmount time

MFC rev 1.5: add module dependency on libmchain

2001-12-20T09:50:32Z

MFC change vnode list under mount point from LIST to TAILQ in preparation

2001-10-25T19:18:55Z

for scaleability fixes for machines with >= 2G of ram coming down the pipe.

MFC: return proper value for maximum file name length.

2001-09-03T08:58:11Z

Approved by: jkh

MFC: Change the interface to vflush() so that it can deal with

2001-07-26T20:37:33Z

extra references on the filesystem root vnode. This fixes bugs in a number of filesystems that could cause forced umounts to erroneously return EBUSY, and it centralises a lot of xxx_unmount logic. This unfortunately requires the recompilation of any filesystem KLDs, although I have added an extra sanity check that should help to avoid panics if old modules are used (the filesystem may refuse to umount, and if so, a warning message will appear on the console). Not objected to by: -stable