Buffers run through copy-on-write are marked B_COWDONE. This condition
is valid until the buffer has run through bwrite() and gets cleared from
biodone().
Welcome to 4.99.39.
Reviewed by: YAMAMOTO Takashi <yamt@netbsd.org>
The general trend is to remove it from all kernel interfaces and
this is a start. In case the calling lwp is desired, curlwp should
be used.
quick consensus on tech-kern
(uint8_t instead of int8_t) - this prevents an ugly sign-extension
printing bug as well as formally undefined behavior when you mount an
unclean fs enough times.
From (my own) PR kern/28134; I've been carrying this patch for three
years, long enough to forget about it, and it's had no ill effects in
that time.
reviewed: pooka
group block buffer busy. If filesystem has any active snapshots, bawrite
can come back trying to allocate new snapshot data block from the same
cylinder group and cause deadlock.
From FreeBSD Rev. 1.117
- Instead of hooking the handler on the specdev of a mounted file system
hook directly on the `struct mount'.
- Rename from `vn_cow_*' to `fscow_*' and move to `kern/vfs_trans.c'. Use
`mount_*specific' instead of clobbering `struct mount' or `struct specinfo'.
- Replace the hand-made reader/writer lock with a krwlock.
- Keep `vn_cow_*' functions and mark as obsolete.
- Welcome to NetBSD 4.99.32 - `struct specinfo' changed size.
Reviewed by: Jason Thorpe <thorpej@netbsd.org>
knew what it was supposed to be used for and wrstuden gave a go-ahead
* while rototilling, convert file systems which went easily to
use VFS_PROTOS() instead of manually prototyping the methods
need to understand the locking around that field. Instead of setting
B_ERROR, set b_error instead. b_error is 'owned' by whoever completes
the I/O request.
fs code is a kernel buffer, pass though the length of the buffer as well.
Since the length of the userspace buffer isn'it (yet) passed through the mount
system call, add a field to the vfsops structure containing the default length.
Split sys_mount() for calls from compat code.
Ride one of the recent kernel version changes - old fs LKMs will load, but
sys_mount() will reject any attempt to use them.
- Make quota-internal functions static.
- Clean up declarations in quota.h and ufs_extern.h. quota.h now has the
description of quota criterions, on-disk structure, user-kernel interface and
declaration of init/done functions. All ufs quota related function
prototypes go to ufs_extern.h.
- New functions ufsquota_init() and ufsquota_free() create or destroy the
quota fields of `struct inode'.
- chkdq() and chkiq() always update the quota fields of `struct inode' first.
- Only ufs_access() explicitely calls getinoquota().
No objections on tech-kern@
an init method. So get rid of it and #ifdef _LKM and just always
init in the init method. Give malloc types the same treatment.
Makes file systems nicer to work with in linksetless environments
and fixes a few LKM discrepancies.
Adjust fs->fs_maxfilesize instead of ump->um_maxfilesize
in ffs_oldfscompat_read() because the latter is overrided
by the former after ffs_oldfscompat_read() returned.
Fixes EFBIG errors on read(2) and "exec /sbin/init: error 8"
problem on mac68k after mountroot() on old 4.3BSD UFS created
by the Mkfs tool for MacOS (reported and confirmed on port-mac68k).
kern/36331 (MP deadlock between ufs_ihashget() and VOP_LOOKUP()) for ffs,
other file systems to follow. Reported by perseant@, debugged by Sverre
Froyen, patch posted/tested by Blair Sadewitz.
corresponding flags.
Revert softdep_trackbufs() to its state before vn_start_write() was added.
Remove from struct mount now unneeded flags IMNT_SUSPEND* and
members mnt_writeopcountupper, mnt_writeopcountlower and mnt_leaf.
Welcome to 4.99.17
P_*/L_* naming convention, and rename the in-kernel flags to avoid
conflict. (P_ -> PK_, L_ -> LW_ ). Add back the (now unused) LSDEAD
constant.
Restores source compatibility with pre-newlock2 tools like ps or top.
Reviewed by Andrew Doran.
