| History log of /src/sys/ufs/ffs/ffs_quota2.c |
| Revision | | Date | Author | Comments |
| 1.7 |
| 17-Jan-2020 |
ad | VFS_VGET(), VFS_ROOT(), VFS_FHTOVP(): give them a "int lktype" argument, to
allow us to get shared locks (or no lock) on the returned vnode. Matches
FreeBSD.
|
| 1.6 |
| 07-Jul-2016 |
msaitoh | branches: 1.6.18; 1.6.24;
KNF. Remove extra spaces. No functional change.
|
| 1.5 |
| 22-Feb-2015 |
maxv | KNF, and simplify a bit.
No functional change
|
| 1.4 |
| 12-Jun-2011 |
rmind | branches: 1.4.12; 1.4.30;
Welcome to 5.99.53! Merge rmind-uvmplock branch:
- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.
- Simplify locking in some pmap(9) modules by removing P->V locking.
- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).
- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.
- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.
Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.
|
| 1.3 |
| 07-Jun-2011 |
bouyer | Fix bad cut'n'paste in copyright. Pointed out by dyoung@
|
| 1.2 |
| 06-Mar-2011 |
bouyer | branches: 1.2.2; 1.2.4; 1.2.6;
merge the bouyer-quota2 branch. This adds a new on-disk format
to store disk quota usage and limits, integrated with ffs
metadata. Usage is checked by fsck_ffs (no more quotacheck)
and is covered by the WAPBL journal. Enabled with kernel
option QUOTA2 (added where QUOTA was enabled in kernel config files),
turned on with tunefs(8) on a per-filesystem
basis. mount_mfs(8) can also turn quotas on.
See http://mail-index.netbsd.org/tech-kern/2011/02/19/msg010025.html
for details.
|
| 1.1 |
| 20-Jan-2011 |
bouyer | branches: 1.1.2;
file ffs_quota2.c was initially added on branch bouyer-quota2.
|
| 1.1.2.2 |
| 09-Feb-2011 |
bouyer | Support MNT_UPDATE for quota2 (especially r/o -> r/w transitions)
|
| 1.1.2.1 |
| 20-Jan-2011 |
bouyer | Snapshot of work in progress on a modernised disk quota system:
- new quotactl syscall (versionned for backward compat), which takes
as parameter a path to a mount point, and a prop_dictionary
(in plistref format) describing commands and arguments.
For each command, status and data are returned as a prop_dictionary.
quota commands features will be added to take advantage of this,
exporting quota data or getting quota commands as plists.
- new on disk-format storage (all 64bit wide), integrated to metadata for
ffs (and playing nicely with wapbl).
Quotas are enabled on a ffs filesystem via superblock flags.
tunefs(8) can enable or disable quotas.
On a quota-enabled filesystem, fsck_ffs(8) will track per-uid/gid
block and inode usages, and will check and update quotas in Pass 6.
quota usage and limits are stored in unliked files (one for users,
one for groups)l fsck_ffs(8) will create the files if needed, or
free them if needed. This means that after enabling or disabling
quotas on a filesystem; a fsck_ffs(8) run is required.
quotacheck(8) is not needed any more, on a unclean shutdown
fsck or journal replay will take care of fixing quotas.
newfs(8) can create a ready-to-mount quota-enabled filesystem
(superblock flags are set and quota inodes are created).
Other new features or semantic changes:
- default quota datas, applied to users or groups which don't already
have a quota entry
- per-user/group grace time (instead of a filesystem global one)
- 0 really means "nothing allowed at all", not "no limit".
If you want "no limit", set the limit to UQUAD_MAX (tools will
understand "unlimited" and "-")
A quota file is structured as follow:
it starts with a header, containing a few per-filesystem values,
and the default quota limits.
Quota entries are linked together as a simple list, each entry has a
pointer (as an offset withing the file) to the next.
The header has a pointer to a list of free quota entries, and
a hash table of in-use entries. The size of the hash table depends
on the filesystem block size (header+hash table should fit in the
first block). The file is not sparse and is a multiple of
filesystem block size (when the free quota entry list is empty a new
filesystem block is allocated). quota entries to not cross
filesystem block boundaries.
In memory, the kernel keeps a cache of recently used quota entries
as a reference to the block number, and offset withing the block.
The quota entry itself is keept in the buf cache.
fsck_ffs(8), tunefs(8) and newfs(8) supports are completed (with
related atf tests :)
The kernel can update disk usage and report it via quotactl(2).
Todo: enforce quotas limits (limits are not checked by kernel yet)
update repquota, edquota and rpc.rquotad to the new world
implement compat_50_quotactl ioctl.
update quotactl(2) man page
fsck_ffs required fixes so that allocating new blocks or inodes will
properly update the superblock and cg sumaries. This was not an issue up
to now because superblock and cg sumaries check happened last, but now
allocations or frees can happen in pass 6.
|
| 1.2.6.2 |
| 06-Jun-2011 |
jruoho | Sync with HEAD.
|
| 1.2.6.1 |
| 06-Mar-2011 |
jruoho | file ffs_quota2.c was added on branch jruoho-x86intr on 2011-06-06 09:10:16 +0000
|
| 1.2.4.1 |
| 23-Jun-2011 |
cherry | Catchup with rmind-uvmplock merge.
|
| 1.2.2.4 |
| 12-Jun-2011 |
rmind | sync with head
|
| 1.2.2.3 |
| 23-Apr-2011 |
rmind | Few fixes, missed in last sync with head.
|
| 1.2.2.2 |
| 21-Apr-2011 |
rmind | sync with head
|
| 1.2.2.1 |
| 06-Mar-2011 |
rmind | file ffs_quota2.c was added on branch rmind-uvmplock on 2011-04-21 01:42:20 +0000
|
| 1.4.30.2 |
| 09-Jul-2016 |
skrll | Sync with HEAD
|
| 1.4.30.1 |
| 06-Apr-2015 |
skrll | Sync with HEAD
|
| 1.4.12.1 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
| 1.6.24.1 |
| 17-Jan-2020 |
ad | Sync with head.
|
| 1.6.18.1 |
| 08-Apr-2020 |
martin | Merge changes from current as of 20200406
|
