| Commit message (Collapse) | Author | Age | Files | Lines |
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Also add -Werror=old-style-definition to enforce new code.
Message-Id: <ZBZ+8xf7GHy2RT/h@jupiter.tail36e24.ts.net>
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To allow e.g. libubsan to detect it should be extra cautious.
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We need to keep ds locked, otherwise it might disappear before we have a
chance to broadcast the condition.
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Shifting (signed) 1 to left 31 positions is undefined behavior. So make
this an unsigned so it becomes defined behavior.
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instead of just exiting: better print a backtrace so we get to know what
happened.
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So we get to know why the system gets stuck if mach-defpager happens to
die.
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Message-Id: <20220829193617.13481-1-etienne.brateau@gmail.com>
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Now that the RPCs have const, this forces us cleaning our const-meant
functions.
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This follows mig's cf4bcc3f1435 ("Also add const qualifiers on server
side")
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No actual behavior change.
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wire_task_self() was duplicating mach-defpager's wire_all_memory(), we
can just make mach-defpager now use the former (and not mlockall
either). Also pci-arbiter and rumpdisk can use it.
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* mach-defpager/main.c (main): After mlockall, report error from errno, not the value returned by mlockall.
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glibc is removing its malloc hooks, but gnumach now has support for
mlockall, which we can just use instead of kalloc/kfree.
* mach-defpager/main.c (main): Call mlockall.
* mach-defpager/kalloc.c: Remove.
* mach-defpager/kalloc.h: Remove.
* mach-defpager/default_pager.c: Use malloc/free instead of
kalloc/kfree.
* mach-defpager/setup.c: Likewise.
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* mach-defpager/default_pager.h (panic): Add noreturn function attribute.
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* doc/hurd.texi: Index pthread.h instead of cthreads.h
* libports/Makefile (SRCS): Drop stubs.c.
* libports/stubs.c: Remove file.
* mach-defpager/default_pager.c (default_pager): Drop disabled cthreads
calls.
* pfinet/kmem_cache.c: Fix comment.
* proc/stubs.c: Fix comments.
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which will be the default in gcc-10.
* acpi/acpifs.h (fs, acpifs_maptime): Add extern qualifier.
* boot/private.h (verbose): Likewise.
* eth-multiplexer/netfs_impl.h (multiplexer_maptime): Likewise.
* eth-multiplexer/vdev.h (port_bucket, vdev_portclass): Likewise.
* exec/priv.h (port_bucket, execboot_portclass): Likewise.
* ext2fs/ext2fs.h (sblock, sblock_dirty, block_size, log2_block_size,
log2_dev_blocks_per_fs_block, log2_stat_blocks_per_fs_block,
zeroblock, frag_size, frags_per_block, inodes_per_block,
itb_per_group, db_per_group, desc_per_block, addr_per_block,
groups_count, node_to_page_lock, generation_lock, next_generation,
group_desc_image, global_pokel, modified_global_blocks,
use_xattr_translator_records): Likewise.
* hostmux/hostmux.h (hostmux_maptime): Likewise.
* isofs/isofs.h (host_name, mounted_on, disk_image, disk_image_len,
logical_block_size, sblock): Likewise.
* libdiskfs/diskfs.h (diskfs_shortcut_symlink, diskfs_shortcut_chrdev,
diskfs_shortcut_blkdev, diskfs_shortcut_fifo, diskfs_shortcut_ifsock,
diskfs_create_symlink_hook, diskfs_read_symlink_hook): Likewise.
* libnetfs/callbacks.h (_netfs_translator_callback1,
_netfs_translator_callback2): Likewise.
* libnetfs/priv.h (netfs_mtime): Likewise.
* libpager/priv.h (_pager_class): Likewise.
* libtrivfs/trivfs.h (trivfs_check_access_hook, trivfs_check_open_hook,
trivfs_open_hook, trivfs_protid_create_hook, trivfs_peropen_create_hook,
trivfs_protid_destroy_hook, trivfs_peropen_destroy_hook,
trivfs_getroot_hook): Likewise.
* lwip/lwip-hurd.h (lwip_bucket, socketport_class, addrport_class,
shutdown_notify_class, lwip_protid_portclasses, lwip_cntl_portclasses,
lwip_bootstrap_portclass, fsys_identity, lwipcntl, lwip_owner,
lwip_group): Likewise.
* lwip/port/include/netif/hurdtunif.h (tunnel_cntlclass, tunnel_class):
Likewise.
* nfs/nfs.h (main_udp_socket, hostname, mapped_time): Likewise.
* nfsd/nfsd.h (mapped_time, authserver): Likewise.
* pci-arbiter/pcifs.h (fs, pcifs_maptime): Likewise.
* pci-arbiter/startup.h (pci_shutdown_notify_class,
arrange_shutdown_notification): Likewise.
* pfinet/pfinet.h (pfinet_bucket, addrport_class, socketport_class,
fsys_identity, pfinetctl, pfinet_owner, pfinet_group): Likewise.
* pflocal/sserver.h (sock_port_bucket): Likewise.
* proc/proc.h (authserver, self_proc, init_proc, startup_proc, proc_bucket,
proc_class, generic_port_class, exc_class, generic_port, kernel_proc,
global_lock): Likewise.
* term/term.h (termstate, termflags, global_lock, carrier_alert,
select_alert, pty_select_alert, term_bucket, tty_cntl_class,
tty_class, cttyid_class, pty_class, pty_cntl_class, termctl, ptyctl,
inputq, rawq, outputq, remote_input_mode, external_processing,
term_owner, term_group, term_mode, bottom): Likewise.
* usermux/usermux.h (usermux_maptime): Likewise.
* utils/msgids.h (msgid_argp): Likewise.
* libdiskfs/priv.h (_diskfs_mtime): Remove definition.
* lwip/options.h (lwip_argp): Add prototype.
* mach-defpager/priv.h (partitions): Name structure.
(all_partitions): Add extern qualifier.
* acpi/main.c (acpifs_maptime, fs): New variables.
* exec/main.c (port_bucket, execboot_portclass): Likewise.
* ext2fs/ext2fs.c (sblock, sblock_dirty, block_size, log2_block_size,
log2_dev_blocks_per_fs_block, log2_stat_blocks_per_fs_block,
frag_size, frags_per_block, inodes_per_block, itb_per_group,
db_per_group, desc_per_block, addr_per_block, groups_count,
next_generation, group_desc_image, global_pokel,
use_xattr_translator_records): Likewise.
* isofs/main.c (host_name, mounted_on, logical_block_size, sblock):
Likewise.
* libpager/pager-create.c (_pager_class): Likewise.
* lwip/port/netif/hurdtunif.c (tunnel_cntlclass, tunnel_class):
Likewise.
* mach-defpager/default_pager.c (all_partitions): Likewise.
* nfs/main.c (main_udp_socket, hostname, mapped_time): Likewise.
* nfsd/main.c (mapped_time, authserver): Likewise.
* pci-arbiter/main.c (fs, pcifs_maptime): Likewise.
* pci-arbiter/startup.c (*pci_shutdown_notify_class): Likewise.
* pfinet/main.c (pfinetctl, pfinet_owner, pfinet_group, pfinet_bucket,
addrport_class, socketport_class, fsys_identity): Likewise.
* proc/main.c (authserver, self_proc, init_proc, startup_proc,
proc_bucket, proc_class, generic_port_class, exc_class, generic_port,
kernel_proc, global_lock): Likewise.
* term/main.c (termstate, termflags, global_lock, carrier_alert,
select_alert, pty_select_alert, term_bucket, tty_cntl_class,
tty_class, cttyid_class, pty_class, pty_cntl_class, termctl, ptyctl,
outputq, remote_input_mode, external_processing, term_owner,
term_group, term_mode, bottom): Likewise.
* usermux/usermux.c (usermux_mapped_time): Rename to usermux_maptime.
* lwip/main.c: Include "options.h".
(lwip_argp, netif_list): Remove declarations.
(lwip_bucket, socketport_class, addrport_class, shutdown_notify_class,
lwip_cntl_portclasses, lwip_bootstrap_portclass, lwip_owner, lwip_group,
fsys_identity, lwipcntl): New variables.
* eth-multiplexer/multiplexer.c (multiplexer_maptime): Add variable.
* hostmux/hostmux.c (hostmux_mapped_time): Rename variable to hostmux_maptime
* libdiskfs/extra-version.c: Rename file to...
* libdiskfs/priv.c: ... new file.
(diskfs_shortcut_symlink, diskfs_shortcut_chrdev,
diskfs_shortcut_blkdev, diskfs_shortcut_fifo, diskfs_shortcut_ifsock,
diskfs_create_symlink_hook, diskfs_read_symlink_hook): Add weak
variables.
* libdiskfs/Makefile (OTHERSRCS): Replace extra-version.c with priv.c.
* libtrivfs/priv.c: New file.
* libtrivfs/Makefile (OTHERSRCS): Add priv.c
* libcons/extra-version.c: Rename file to...
* libcons/priv.c: ... new file.
* libcons/Makefile (SRCS): Replace extra-version.c with priv.c.
Fix build with #
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Our variants print stack traces on failures. This will make locating
errors much easier.
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The server code for no-senders notifications wasn't updated to expect
protected payloads.
* mach-defpager/default_pager.c (default_pager_no_senders): Accept the
pager structure directly instead of its port name and update body
accordingly.
(default_pager_no_senders): Accept protected payloads in addition to
send-once rights and fetch the pager structure according to the message
type.
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The vm_wire_all call was recently added to GNU Mach so that the
default pager doesn't depend on glibc malloc hooks any more.
* mach-defpager/default_pager.c
(start_default_pager_thread): Remove call to wire_memory.
* mach-defpager/kalloc.c (kget_space): Likewise.
* mach-defpager/wiring.c: Include mach/gnumach.h.
(wire_memory): Remove function.
(wire_all_memory): Replace call to wire_memory with a direct call
to vm_wire, call vm_wire_all after the fixup loop.
(vm_allocate, __vm_allocate): Remove functions.
* mach-defpager/wiring.h (wire_memory): Remove function.
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* libpager/stubs.c (_pager_S_memory_object_data_write): Drop stub.
* mach-defpager/default_pager.c (seqnos_memory_object_data_write):
Drop function.
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* mach-defpager/main.c (main): Do not hang if the child dies.
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* mach-defpager/default_pager.c (destroy_paging_partition): Add missing
unlock when destroying partition fails.
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* mach-defpager/default_pager.c (pager_dealloc_page, pager_read_offset,
pager_write_offset, default_read, default_write, destroy_paging_partition,
seqnos_memory_object_terminate, seqnos_memory_object_data_request,
seqnos_memory_object_data_initialize): Fix debugging prints formats.
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* mach-defpager/kalloc.c (realloc_hook, memalign_hook): New functions.
(init_hook): Set __realloc_hook to realloc_hook and __memalign_hook to
memalign_hook.
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This reverts commit 8c49801c8f7e3f800cabedf8fca8ccec3cf35a22.
The malloc hook is needed for calloc.
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* mach-defpager/default_pager.c (default_pager_thread): Fix panic
invocation.
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* mach-defpager/default_pager.c (S_default_pager_storage_info): Fix
error handling.
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* hurd/default_pager.defs (default_pager_storage_info): New RPC.
* hurd/default_pager_reply.defs: Skip default_pager_storage_info RPC.
* hurd/default_pager_types.h: Include <mach/machine/vm_types.h>.
(vm_size_array_t): New type.
* mach-defpager/priv.h (part): Add `name' field.
* mach-defpager/default_pager.c (new_partition): Allocate and fill
`part->name' field. Free it on error.
(destroy_paging_partition): Free `part->name' field.
(S_default_pager_storage_info): New function.
* procfs/Makefile (SRCS): Add default_pagerUser.c.
* procfs/rootdir.c: Include "default_pager_U.h".
(rootdir_gc_swaps): New function.
(rootdir_entries): Add "swaps" entry.
* sutils/swapon.c: Include <argz.h>
(show): New variable.
(options): Add --show/-S option.
(def_pager, dev_master): New variables
(swaponoff): Move getting `def_pager' to...
(get_def_pager): ... new function.
(main): Support 'S' option.
* trans/proxy-defpager.c (S_default_pager_storage_info): New function.
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* mach-defpager/Makefile (LDFLAGS): Drop.
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* mach-defpager/Makefile: Allow multiple definitions for mach-defpager.
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When cross-compiling, OTHERLIBS magically turns -lpthread into the path
to the host libpthread.so file, resulting in build issues. LDLIBS does
not suffer from this problem and it seems that is already being used in
other Makefiles. This patch removes OTHERLIBS entirely from the build
system.
* Makeconf: Remove references to OTHERLIBS
* auth/Makefile: Replace OTHERLIBS with LDLIBS.
* boot/Makefile: Likewise.
* console/Makefile: Likewise.
* exec/Makefile: Likewise.
* ext2fs/Makefile: Likewise.
* fatfs/Makefile: Likewise.
* ftpfs/Makefile: Likewise.
* hostmux/Makefile: Likewise.
* isofs/Makefile: Likewise.
* libhurd-slab/Makefile: Likewise.
* nfs/Makefile: Likewise.
* nfsd/Makefile: Likewise.
* pfinet/Makefile: Likewise.
* proc/Makefile: Likewise.
* procfs/Makefile: Likewise.
* random/Makefile: Likewise.
* storeio/Makefile: Likewise.
* term/Makefile: Likewise.
* tmpfs/Makefile: Likewise.
* usermux/Makefile: Likewise.
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Signed-off-by: Stefan Weil <sw@weilnetz.de>
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* boot/Makefile (MIGSFLAGS): Add -DHURD_DEFAULT_PAYLOAD_TO_PORT=1.
* mach-defpager/Makefile (MIGSFLAGS): Likewise.
* hurd/hurd_types.defs: Do not include <hurd/ports.h>.
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* ext2fs/inode.c: Replace `bcopy' with `memcpy' or `memmove' as
appropriate.
* ext2fs/pager.c: Likewise.
* isofs/lookup.c: Likewise.
* isofs/main.c: Likewise.
* isofs/rr.c: Likewise.
* libdiskfs/file-get-trans.c: Likewise.
* libiohelp/return-buffer.c: Likewise.
* libpager/pagemap.c: Likewise.
* libpipe/pq.c: Likewise.
* libpipe/pq.h: Likewise.
* libstore/unzipstore.c: Likewise.
* mach-defpager/default_pager.c: Likewise.
* pfinet/ethernet.c: Likewise.
* pfinet/tunnel.c: Likewise.
* storeio/dev.c: Likewise.
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For reference, this patch was created using the following semantic
patch, and then manually applying the change in all functions
containing nested functions, as those are not supported by Coccinelle.
@@
expression A, B;
@@
- bzero (A, B)
+ memset (A, 0, B)
* auth/auth.c: Replace `bzero' with `memset'.
* boot/boot.c: Likewise.
* defpager/defpager.c: Likewise.
* exec/exec.c: Likewise. Also, drop `safe_bzero' and just use
`hurd_safe_memset' directly.
* ext2fs/ext2fs.c: Likewise.
* ext2fs/getblk.c: Likewise.
* ext2fs/pager.c: Likewise.
* fatfs/pager.c: Likewise.
* ftpfs/dir.c: Likewise.
* ftpfs/netfs.c: Likewise.
* isofs/inode.c: Likewise.
* isofs/pager.c: Likewise.
* libdiskfs/file-getfh.c: Likewise.
* libdiskfs/file-statfs.c: Likewise.
* libfshelp/fetch-root.c: Likewise.
* libfshelp/start-translator.c: Likewise.
* libftpconn/create.c: Likewise.
* libftpconn/open.c: Likewise.
* libftpconn/unix.c: Likewise.
* libpipe/pipe.c: Likewise.
* libps/procstat.c: Likewise.
* libps/spec.c: Likewise.
* libshouldbeinlibc/cacheq.c: Likewise.
* libshouldbeinlibc/idvec.c: Likewise.
* libshouldbeinlibc/ugids.c: Likewise.
* libstore/argp.c: Likewise.
* libstore/enc.c: Likewise.
* libstore/kids.c: Likewise.
* libthreads/alpha/thread.c: Likewise.
* libtreefs/fsys.c: Likewise.
* libtrivfs/file-statfs.c: Likewise.
* mach-defpager/default_pager.c: Likewise.
* pfinet/glue-include/asm/uaccess.h: Likewise.
* pfinet/io-ops.c: Likewise.
* pfinet/options.c: Likewise.
* pfinet/socket.c: Likewise.
* pfinet/timer-emul.c: Likewise.
* pflocal/io.c: Likewise.
* startup/startup.c: Likewise.
* storeio/storeio.c: Likewise.
* sutils/fstab.c: Likewise.
* usermux/usermux.c: Likewise.
* utils/fakeauth.c: Likewise.
* utils/frobauth.c: Likewise.
* utils/login.c: Likewise.
* utils/x.c: Likewise.
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* mach-defpager/kalloc.c (MINSIZE): Set to sizeof(vm_offset_t) instead
of hardcoded 4.
(kalloc_init): Set kalloc_max to MINSIZE << (KLIST_MAX-1) instead of
hardcoded 16384.
(kalloc, kfree): Use the cache for the maximum size too.
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* mach-defpager/default_pager.c (pager_port_list_insert): Set
protected payload.
(pager_port_list_delete): Clear protected payload.
* mach-defpager/mig-decls.h (begin_using_default_pager_payload): New
function.
* mach-defpager/mig-mutate.h: Add mutator.
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Make the memory_object parameter of default_pager_object_create
polymorphic. This fixes https://savannah.gnu.org/bugs/?26751 .
* hurd/default_pager.defs (default_pager_object_create): Make
memory_object parameter polymorphic.
* mach-defpager/default_pager.c (S_default_pager_object_create):
Adjust accordingly.
* trans/proxy-defpager.c (S_default_pager_object_create): Likewise.
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Make empty bodies of control flow statements more explicit. Doing so
will allow us to use stricter compiler settings. This would have
cought 4ece292c.
* console-client/xkb/xkb.c: Make empty bodies more explicit
* libpipe/pipe.c: Likewise.
* mach-defpager/default_pager.c: Likewise.
* pfinet/linux-src/net/ipv4/fib_hash.c: Likewise.
* pflocal/connq.c: Likewise.
* pflocal/socket.c: Likewise.
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Previously, the mach-defpager used a "magic typecast" for object
lookups. It renamed the port to the address of the associated object,
and upon receiving a message it would cast the port name back to a
pointer.
While this might seem like an optimization, it actually makes the port
handling in the kernel less efficient. Ports with small continuous
names are stored in an array, while other ports get spilled in a splay
tree.
Replace the linked list of default_port_t objects with a hash table.
Do not rename the ports, rather use the hash table to lookup objects
associated with ports.
* mach-defpager/default_pager.c (struct pager_port): Replace queue
with hash table, remove count, move type declaration to priv.h.
(pager_port_list_init): Adjust accordingly.
(pager_port_list_insert): Likewise.
(pager_port_list_delete): Likewise.
(destroy_paging_partition): Replace queue_iterate with HURD_IHASH_ITERATE.
(S_default_pager_objects): Likewise.
(S_default_pager_object_pages): Likewise.
(seqnos_memory_object_create): Do not rename the port but store it in
the hash table.
(S_default_pager_object_create): Likewise.
* mach-defpager/priv.h (struct dstruct): Add fast-removal pointer.
(pnameof): Remove obsolete macro definition.
(dnameof): Likewise.
* mach-defpager/mig-decls.h (begin_using_default_pager): Replace the
magic typecast with a hash table lookup.
* mach-defpager/Makefile (HURDLIBS): Add ihash.
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* mach-defpager/default_pager.c: Fix local includes.
* mach-defpager/main.c: Likewise.
* mach-defpager/setup.c: Likewise.
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Previously, the receiver lookup was done manually in all the server
functions. Use mig translator functions instead.
* mach-defpager/mig-decls.h: New file.
* mach-defpager/mig-mutate.h: Likewise.
* mach-defpager/Makefile (MIGSFLAGS): Include mig-mutate.h.
* mach-defpager/mach-defpager.c: Fix receiver lookups, move type
definitions...
* mach-defpager/priv.h: ... here, so that they can be used in
mig-decls.h.
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Currently, if mach-defpager is asked to page to an already active
partition, it ignores this request and returns success. It does,
however, print a message about this to stdout.
This message might indicate to the user that there is some kind of a
problem with the configuration of the machine, even though the code in
new_partition clearly does not consider it an error to do such an
request.
* mach-defpager/default_pager.c (new_partition): Do not print a
message if requested to page to an already active partition.
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* mach-defpager/default_pager.c (new_partition): Fix type of bsize.
* mach-defpager/file_io.h (page_read_file_direct): Fix type of size argument.
(page_write_file_direct): Likewise.
* mach-defpager/setup.c (page_read_file_direct): Likewise.
(page_write_file_direct): Likewise.
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* mach-defpager/default_pager.c (S_default_pager_objects): Initialize
address, size-pairs to 0.
(S_default_pager_object_pages): Likewise.
* mach-defpager/kalloc.c (kget_space): Likewise.
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Previously, failure to look up the given partition was detected after
the loop by checking whether the loop ran over all existing
partitions. Initialize part to NULL and check for that instead. This
retains the behavior, but expresses it in a way the compiler
understands better.
* mach-defpager/default_pager.c (destroy_paging_partition): Initialize
part to NULL and check for it still being NULL after the loop.
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