. add receive hooks in the kernel to print asynchronously
delivered messages
. do not rely on MF_REPLY_PEND to decide between calls and errors,
as that isn't reliable for asynchronous messages; try both instead
. add _sendcall() that extract-mfield.sh can then reliably recognize
the fields for messages that are sent with just send()
. add DEBUG_DUMPIPC_NAMES to restrict printed messages to
from/to given process names
Change-Id: Ia65eb02a69a2b58e73bf9f009987be06dda774a3
The natural term to use when talking about MINIX big pages on ARM
is SECTION. A section is a level 1 page table entry pointing to
a 1MB area.
Change-Id: I9bd27ca99bc772126c31c27a537b1415db20c4a6
libminixfs may now be informed of changes to the block usage on the
filesystem. if the net change becomes big enough, libminixfs may
resize the cache based on the new usage.
. update the 2 FSes to provide this information to libminixfs
Change-Id: I158815a11da801fd5572a8de89c9e6c039b82650
This commit introduces a new request type called REQ_BPEEK. It
requests minor device blocks from the FS. Analogously to REQ_PEEK,
it requests the filesystem to get the requested blocks into its
cache, without actually copying the result anywhere.
Change-Id: If1d06645b0e17553a64b3167091e9d12efeb3d6f
In libexec, split the memory allocation method into cleared and
non-cleared. Cleared gives zeroed memory, non-cleared gives 'junk'
memory (that will be overwritten anyway, and so needn't be cleared)
that is faster to get.
Also introduce the 'memmap' method that can be used, if available,
to map code and data from executables into a process using the
third-party mmap() mode.
Change-Id: I26694fd3c21deb8b97e01ed675dfc14719b0672b
. use lmfs_* cache functions that provide the cache with inode
metadata whenever applicable, i.e. tell the cache code which
inode number and in-inode offset a particular cache block
corresponds to.
. needed for mmap implementation
Change-Id: Ic7d3c0c49029880f86a31368278722e907bc2896
Primary purpose of change: to support the mmap implementation, VM must
know both (a) about some block metadata for FS cache blocks, i.e.
inode numbers and inode offsets where applicable; and (b) know about
*all* cache blocks, i.e. also of the FS primary caches and not just
the blocks that spill into the secondary one. This changes the
interface and VM data structures.
This change is only for the interface (libminixfs) and VM data
structures; the filesystem code is unmodified, so although the
secondary cache will be used as normal, blocks will not be annotated
with inode information until the FS is modified to provide this
information. Until it is modified, mmap of files will fail gracefully
on such filesystems.
This is indicated to VFS/VM by returning ENOSYS for REQ_PEEK.
Change-Id: I1d2df6c485e6c5e89eb28d9055076cc02629594e
Memory types in VM are described by methods. Each mapped region has
a type, and all pages instantiated get that type on creation.
Individual page types has to be able to change though. This commit
changes the code to use the memory types of the individual pages,
where appropriate, instead of just the higher-level region, in case
it has changed. This is needed to e.g. support future copy-on-write
MAP_PRIVATE mmap modes.
Change-Id: I5523db14ac036ec774a54392fb67f9acb8725731
Some (backwards-compatible) changes in mmap() call message fields
that allow for a 64-bit offset. minix_mmap() takes an off_t and
minix_mmap64() takes a u64_t. Some mmap() work in VM goes into a
separate function, using the new fields, so that that can be re-used
when files are to be mapped (future commit).
Change-Id: Ifb77a90b593dd3c33cf81b396068e4da1ec5fb1c
The filesystems already implement REQ_PEEK, but do not fully
use the new filesystem cache code yet. (Because it isn't committed
yet..) REQ_PEEK should be disabled for them until they do.
This indicates to VFS that they are not annotating their cache
blocks (in VM) with inode number/offset info, and therefore mmap()
shouldn't succeed on any of their files. (Most importantly exec()
won't fallback elegantly otherwise.)
Change-Id: Ic57ee422864b4bbc031eadba32973270907b02fd
This commit removes the secondary cache code implementation from
VM and its usage from libminixfs. It is to be replaced by a new
implementation.
Change-Id: I8fa3af06330e7604c7e0dd4cbe39d3ce353a05b1
There where two reasons for needing root access while making ARM builds. The
first reason was that we needed root permissions to create device nodes and
assign permissions to files. The second reason we needed root was that we used
loop mounted files to copy the build output to the file backed storage.
The first problem is solved by building in unprivileged mode (adding -U) during
compilation. The second problem is solved by using mcopy to put files on the
fat partition and use the mkfs.mfs proto files to create MFS file system.
Future work might be to replace this script by the netbsd makefs tool.
Change-Id: Ibba61d4cad053f7c1ede26169d5214065a4939d8
. test70: regression test for m_out vfs race condition
The following tests use testcache.c to generate test i/o
patterns, generate random write data and verify the reads.
. test71: blackbox full-stack test of FS operation, testing
using the regular VFS interface crazy i/o patterns
with various working set sizes, triggering only
primary cache, also secondary cache, and finally
disk i/o and verifying contents all the time
. test72: unit test of libminixfs, implementing
functions it needs from -lsys and -lblockdriver
and the client in order to simulate a working
cache client and backend environment.
. test73: blackbox test of secondary vm cache in isolation
Change-Id: I1287e9753182b8719e634917ad158e3c1e079ceb
. vfs read_only() assumes vnode->v_vmnt is non-NULL, but it can
be NULL sometimes
. e.g. fchmod() on UDS triggered NULL deref; add a check and
add REQ_CHMOD to pfs so unix domain sockets can be fchmod()ded
. add to test56
Change-Id: I83c840f101b647516897cc99fcf472116d762012
. add -l option to list available tests
. add -t option to specify tests to run
. also improve the root check a bit by
not relying on an environment var
. do not print the human-friendly banner & summary
if a test list is given to make the test
results easy to parse
Change-Id: Id0f87d485240b1924d667af788338ae31c3dc94c
. make common.o link with the tests instead of being
#included as common.c
. fix warnings about missing prototypes by declaring functions
static
. reduces some duplicated code
Change-Id: Ic2a765d7f5886add5863190efec3fdd2d2ea2137
m_out is shared between threads as the reply message, and it can happen
results get overwritten by another thread before the reply is sent. This
change
. makes m_out local to the message handling function,
declared on the stack of the caller
. forces callers of reply() to give it a message, or
declare the reply message has no significant fields except
for the return code by calling replycode()
Change-Id: Id06300083a63c72c00f34f86a5c7d96e4bbdf9f6
With the addition of utimes(), we can remove the workarounds
and use the original NetBSD code for timestamping files.
Also restore use of -p & -r for install while building
Variant of utime(2) with struct timespec (with ns precision)
instead of time_t values; also allows for tv_nsec members
the values UTIME_NOW (force update to current time) or
UTIME_OMIT (allow to set either atim or mtim independently.)
Provides a superset of utimes(2), futimes(2), lutimes(2),
and futimens(2).
Provides the same subset of utimensat(2) as does NetBSD 6.
Also import utimens() and lutimeNS() from NetBSD-current.
The kernel API for requesting interrupts and the associated callback
have a somewhat strange behaviour. Requesting an interrupts is done
by calling sys_irqsetpolicy using an interrupt and a given id. This
id can be modified by the sys_irqsetpolicy and must be used for
subsequent calls to sys_irqenable/sys_irqdisable. However upon an
incoming call from the kernel NOTIFY_ARG contains the original value
encoded in a set e.g. if 1 << id == true the interrupt was raised.
We used to load the memory driver above the other modules to allow
the memory driver (ramdisk) to grow. We no longer want or need this
this as we have a working mmc driver.
