CVS log for src/sys/sys/vfs_syscalls.h

Up to [cvs.NetBSD.org] / src / sys / sys

Request diff between arbitrary revisions

Keyword substitution: kv
Default branch: MAIN

Merge the kernel portion of the posix-spawn-chdir project by Piyush Sachdeva.

Sync with bouyer-xenpvh-base2 (HEAD)

Sync with HEAD

Rename buf_syncwait() to vfs_syncwait(), and have it wait on v_numoutput
rather than BC_BUSY.  Removes the dependency on bufhash.

Mostly merge changes from HEAD upto 20200411

Merge changes from current as of 20200406

Sync with head.

Merge from ad-namecache:

- Have a stab at clustering the members of vnode_t and vnode_impl_t in a
  more cache-conscious way.  With that done, go back to adjusting v_usecount
  with atomics and keep vi_lock directly in vnode_impl_t (saves KVA).

- Allow VOP_LOCK(LK_NONE) for the benefit of VFS_VGET() and VFS_ROOT().
  Make sure LK_UPGRADE always comes with LK_NOWAIT.

- Make cwdinfo use mostly lockless.

Make cwdinfo use mostly lockless, and largely hide the details in vfs_cwd.c.

make nmountcompatnames unsigned (assigned from __arraycount, compared with
unsigned in compat code)

Add mkfifo{,at}(2) mode in mknod{,at}(2) as requested by POSIX

mknod with mode & S_IFIFO and dev=0 shall behave like mkfifo.

Update the documentation to reflect this state.

Add ATF tests.

This is an in-kernel implementation as typically user-space programs use
mkfifo(2) directly, however whenever there is need to bypass libc (like in
valgrind) then portable POSIX software calls the mknod syscall.

Noted on tech-kern@ by Greg Troxel.

Drop unused retval pointer from do_sys_mknod{,at}()

No functional change intended.

Convert the openat_10 hook to use the MP-safe mechanism

XXX Still to do: compat70_unp_addsockcred and sysvipc50_sysctl

First pass at compat modules for 4.3BSD, NetBSD-0.9, and NetBSD-1.0

XXX Still need to deal with the sysctl stuff and other code shared
XXX between 09 and 43

Make do_openat()'s handling of path=NULL modular

update from HEAD

Sync with HEAD

Declare mountcompatnames in sys/vfs_syscalls.h to kill nested extern.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

expose do_open

expose various do_*at() functions for compat_linux.

sync with head

sync with HEAD

Make do_sys_utimensat public

export do_sys_statat for netbsd32

sync with head

sync to latest -current.

Replace the remaining KAUTH_GENERIC_ISSUSER authorization calls with
something meaningful. All relevant documentation has been updated or
written.

Most of these changes were brought up in the following messages:

    http://mail-index.netbsd.org/tech-kern/2012/01/18/msg012490.html
    http://mail-index.netbsd.org/tech-kern/2012/01/19/msg012502.html
    http://mail-index.netbsd.org/tech-kern/2012/02/17/msg012728.html

Thanks to christos, manu, njoly, and jmmv for input.

Huge thanks to pgoyette for spinning these changes through some build
cycles and ATF.

merge to -current.

Split out a do_sys_quotactl for compat_netbsd32.

Missing bit in previous commit: do_sys_utimens prototype in the right
place.

Catchup with rmind-uvmplock merge.

sync with head

Sync with HEAD.

Don't directly call sys_sync() from random bits of code, instead
  add do_sys_sync() that takes an 'lwp' (for l_cred) as an argument.
Explicitly pass &lwp0 rather than NULL and expecting sys_sync to
  substitute some random lwp.

Sync with HEAD.

sync with head.

sync with head

Enable kernel-internal symlink creation with do_sys_symlink().
I did this a while ago already, but can't remember why i didn't
commit it then.

sync with head.

Add enum uio_seg argument to do_sys_mknod and do_sys_mkdir so these functions
can be called from kernel, too.

Change needed for zfs device node creation, until we have propoer devfs.

Oked by ad@.

As discussed on tech-kern:

Factor out common code of chroot-like syscalls into change_root() and export
that function for use in other parts of the kernel.
Rename change_dir() to chdir_lookup() as the latter describes better what
the function does.  While there, move the namei_data initialisation into
chdir_lookup(), too.  And export chdir_lookup().

Sync with HEAD.

sync with head.

slap a run-of-the-mill tnf copyright here

expose mkdir to in-kernel consumers

sync with head.

Sync with HEAD.

Sync with HEAD.

merge christos-time_t

Update haad-dm branch to haad-dm-base2.

merge with head.

include <sys/fstypes.h>

Sync with HEAD.

Welcome to the time_t=long long dev_t=uint64_t branch.

sync with head.

sync with head.

sync with HEAD

Catch up with descriptor handling changes. See kern_descrip.c revision
1.173 for details.

sync with head.

missed this

sync with head

sync with HEAD

Sync with HEAD

Sync with head.

Export do_sys_unlink, do_sys_rename to the rest of the kernel.

sync with head.

Sync with head.

Sync with head.

sync with head.

file vfs_syscalls.h was added on branch yamt-lazymbuf on 2007-09-03 14:46:43 +0000

Change the compat sys_[fl]utime code to not use the stackgap.

sync with head.

Split the statvfs functions so that the 'work' is done to a kernel buffer
which can either be copied directly to userspace, or converted then copied.
Saves replicating a lot of code in the compat functions (esp. for
getvfsstat) at a cast of an extra function call in the non-emulated case -
which is unlikely to be measurable given the other costs of the actions
involved (even on vax).
Remove dofhstat() and dofhstatvfs() (and the last caller).
Remove some redundant stackgap_init() calls.

Sync with head.

Sync with HEAD (missed new files in previous).

file vfs_syscalls.h was added on branch yamt-idlelwp on 2007-03-12 06:14:56 +0000

Add a tentative definition for 'struct statvfs'.

Split the work for sys_stat, sys_lstat, sys_fstat and sys_fhstat out into
separate functions that don't do the copyout.
This allows all the compat_xxx versions to convert the 'struct stat' to
the correct format without using the 'stackgap'.
The stackgap isn't at all LWP friendly, and needs to be removed from
any compat functions that might involve threads (inc. clone()).
The code is still binary compatible with existing LKMs.