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2015-09-06Fix race condition in ext2fs when remountingJames Clarke
On some systems, ext2fs.static would regularly hang at startup, as a race condition meant it would process paging requests while remounting. To fix this, libpager has been altered to allow inhibiting and resuming its worker threads, and ext2fs uses this to inhibit paging while remounting. * console/pager.c (pager_requests): New variable. (user_pager_init): Updated call to pager_start_workers to use new pager_requests variable. * daemons/runsystem.sh: Removed artificial delay working around the race condition. * ext2fs/ext2fs.c (diskfs_reload_global_state): Call new inhibit_ext2_pager and resume_ext2_pager functions, and leave sblock as non-NULL so it will be munmapped. * ext2fs/ext2fs.h (inhibit_ext2_pager,resume_ext2_pager): New functions. * ext2fs/pager.c (file_pager_requests): New variable. (create_disk_pager): Updated call to pager_start_workers to use new file_pager_requests variable. (inhibit_ext2_pager,resume_ext2_pager): New functions. * fatfs/fatfs.h (inhibit_fat_pager,resume_fat_pager): New functions. * fatfs/pager.c (file_pager_requests): New variable. (create_fat_pager): Updated call to pager_start_workers to use new file_pager_requests variable. (inhibit_fat_pager,resume_fat_pager): New functions. * libdiskfs/disk-pager.c (diskfs_disk_pager_requests): New variable. (diskfs_start_disk_pager): Updated call to pager_start_workers to use new diskfs_disk_pager_requests variable. * libdiskfs/diskfs-pager.h (diskfs_disk_pager_requests): New variable. * libpager/demuxer.c (struct pager_requests): Renamed struct requests to struct pager_requests. Replaced queue with queue_in and queue_out pointers. Added inhibit_wakeup field. (pager_demuxer): Updated to use new queue_in/queue_out pointers. Only wake up workers if not inhibited. (worker_func): Updated to use new queue_in/queue_out pointers. Final worker thread to sleep notifies the inhibit_wakeup condition variable. (pager_start_workers): Added out parameter for the requests instance. Allocate heap space shared by both queues. Initialise new inhibit_wakeup condition. (pager_inhibit_workers,pager_resume_workers): New functions. * libpager/pager.h (struct pager_requests): Public forward definition. (pager_start_workers): Added out parameter for the requests instance. (pager_inhibit_workers,pager_resume_workers): New functions. * libpager/queue.h (queue_empty): New function. * storeio/pager.c (pager_requests): New variable. (init_dev_paging): Updated call to pager_start_workers to use new pager_requests variable.
2015-01-03lib*: Fix typos in comments (found by codespell)Stefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2014-12-10Replace `bcopy' with `memcpy' or `memmove' as appropriateJustus Winter
* 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.
2014-12-10libpager: use libports notification functionsJustus Winter
Now that we do not use sequence numbers anymore, we can simply use libports notification server functions. * libpager/Makefile (SRCS): Drop `no-senders.c', and `notify-stubs.c'. (OBJS): Drop `notifyServer.o'. * libpager/demuxer.c (pager_demuxer): Use libports server functions. * libpager/mig-mutate.h: Drop all notification mutators. * libpager/no-senders.c: Remove file. * libpager/notify-stubs.c: Likewise.
2014-12-10libpager: remove the `seqno' parametersJustus Winter
* libpager/Makefile (MIGSFLAGS): Drop `-DSEQNOS'. * libpager/priv.h (struct pager): Drop fields `seqno' and `waitingforseqno'. * libpager/chg-compl.c: Adopt accordingly. * libpager/data-request.c: Likewise. * libpager/data-return.c: Likewise. * libpager/data-unlock.c: Likewise. * libpager/demuxer.c: Likewise. * libpager/lock-completed.c: Likewise. * libpager/no-senders.c: Likewise. * libpager/notify-stubs.c: Likewise. * libpager/object-init.c: Likewise. * libpager/object-terminate.c: Likewise. * libpager/pager-create.c: Likewise. * libpager/stubs.c: Likewise.
2014-12-07libpager: add a payload-aware intrans functionJustus Winter
* libpager/mig-decls.h (begin_using_pager_payload): New function. * libpager/mig-mutate.h: Add mutators.
2014-11-23libpager: make the request queue more memory-efficientJustus Winter
Previously, `pager_demuxer' allocated a chunk of memory for the response message. But if memory gets scarce, the kernel will issue a large number of paging requests to free up memory. In such a situation, allocating memory is dangerous. Fix this by not allocating space for the response message, rather, use a chunk of the workers stack space. Also, we only handle the `notify' and `memory_object' protocol, which both only contain simple routines, we only need a `mig_response_header_t'. * libpager/demuxer.c (struct request): Remove `inp' and `outp'. (request_inp): New function. (pager_demuxer): Do not allocate memory for the response. (mig_reply_setup): New function. (worker_func): Adjust accordingly.
2014-11-10Avoid hitting VM_MAX_ADDRESSSamuel Thibault
* libpager/pager-memcpy.c (pager_memcpy): Reset address passed to vm_map on each loop, to avoid potentially monotonically increasing up to VM_MAX_ADDRESS.
2014-11-09Deal with odd kernel behaviorSamuel Thibault
Some versions of gnumach actually take address as a mapping hint, and would fail if the hint is bogus. Make sure to pass 0 for those versions. * console/pager.c (user_pager_create): Make sure to set *user to 0 before calling vm_map. * libdiskfs/disk-pager.c (diskfs_start_disk_pager): Make sure to set *image to 0 before calling vm_map. * libpager/pager-memcpy.c (pager_memcpy): Set window to 0 before calling vm_map. * tmpfs/node.c (diskfs_get_filemap): Make sure to set np->dn->u.reg.memref to 0 before calling vm_map.
2014-11-03libpager: use a fixed number of threadsJustus Winter
Previously, libpager used an unbounded number of threads to receive messages from the pager bucket. It used sequence barriers to execute the requests to order requests to each object. The sequence barriers are implemented in seqnos.c. A server function uses _pager_wait_for_seqno to wait for its sequence number and _pager_release_seqno to release it, or it uses _pager_update_seqno to do both operations in one step. These sequence barriers divide each server function in three parts: A, B, and C. A_i happens "before" the sequence barrier i, B_i happens "in order", C_i happens "after" the sequence barrier. This partial order < has the following properties: * This order is *per object*. Requests to different objects are not ordered. * A_i < B_i, B_i < C_i (due to the structure of the code) * B_i < B_{i+1} (this is due to the sequence barriers) * Note that only the B parts are ordered by the sequence numbers, we are free to execute C_i and C_{i+1} in any possible order. The same argument applies to the A parts. The sequence barriers are implemented using a very simple ticket algorithm. Every request, even the invalid ones, is processed by a thread, and waits until the ticket count reaches its seqno, does some work in-order, then increments the ticket and awakes all threads that have piled up up to this moment. All of them except one will then discover that it's not their turn yet and go to sleep again. Creating one thread per request has proven to be problematic as memory_object requests often arrive in large batches. This patch does two things: * Use a single thread to receive messages from the port bucket. All incoming request are put into a queue. * Use a fixed-number of threads (though even one is actually enough) to execute the the server functions. If multiple threads are used, a work-delegation mechanism ensures that the per object order < is preserved. For reference, I used the following command to create workloads that highlight the problem this patch is addressing: % settrans t .../ext2fs --sync=30 /dev/sd2s1 ... % /usr/bin/time zsh -c 'for ((i=0; i < 1500; i++)); do dd if=/dev/zero of=t/src/$i bs=4k count=290 2>/dev/null echo -n . if ((i % 100 == 0)) ; then echo -n $i; fi done' * libpager/queue.h: New file. * libpager/demuxer.c: Manage a queue of requests received from the port bucket. (pager_demuxer): Just decode the server function and enqueue the request. (worker_func): New function that consumes and executes the requests from the queue. (service_paging_requests): New function. (pager_start_workers): Likewise. * libpager/data-request.c: Remove the seqno barriers. * libpager/data-return.c: Likewise. * libpager/data-unlock.c: Likewise. * libpager/chg-compl.c: Likewise. * libpager/lock-completed.c: Likewise. * libpager/no-senders.c: Likewise. * libpager/notify-stubs.c: Likewise. * libpager/object-init.c: Likewise. * libpager/object-terminate.c: Likewise. * libpager/seqnos.c: Remove file. * libpager/stubs.c: Likewise. * libpager/pager.h (pager_demuxer): Drop declaration. (pager_start_workers): New declaration. * libpager/priv.h: Remove the _pager_seqno declarations. * libpager/Makefile (SRCS): Drop seqnos.c. * console/pager.c (user_pager_init): Call pager_start_workers. * libdiskfs/disk-pager.c: Likewise. * storeio/pager.c: Likewise. * ext2fs/pager.c (service_paging_requests): Remove function. (create_disk_pager): Start separate file pager using `pager_start_workers'. * fatfs/pager.c (service_paging_requests): Remove function. (create_fat_pager): Start separate file pager using `pager_start_workers'.
2014-08-23Add missing linefeedSamuel Thibault
* libpager/object-terminate.c (_pager_seqnos_memory_object_terminate): Add missing linefeed in error message.
2014-05-26libpager: drop unused fields from struct pagerJustus Winter
* libpager/priv.h (struct pager): Drop fields next, pprev.
2014-04-15libpager: fix notify_port_t receiver lookupsJustus Winter
This fixes one more occurence of a notify_port_t receiver lookup that I overlooked in 5a4926dd52aed56913cbe10592063ff0da753700. * libpager/no-senders.c: Include "notify_S.h" so that the compiler can spot such mistakes in the future. (_pager_do_seqnos_mach_notify_no_senders): Fix receiver lookup.
2014-04-14libpager: fix notify_port_t receiver lookupsJustus Winter
* libpager/mig-mutate.h: Add mutators. * libpager/notify-stubs.c: Adjust accordingly.
2014-04-02libpager: fix receiver lookupsJustus Winter
Previously, the receiver lookup was done manually in all the server functions. Use mig translator functions instead. * libpager/mig-decls.h: New file. * libpager/mig-mutate.h: Likewise. * libpager/Makefile (MIGSFLAGS): Include mig-mutate.h. * libpager/chg-compl.c: Fix receiver lookups. * libpager/data-request.c: Likewise. * libpager/data-return.c: Likewise. * libpager/data-unlock.c: Likewise. * libpager/lock-completed.c: Likewise. * libpager/object-init.c: Likewise. * libpager/object-terminate.c: Likewise. * libpager/stubs.c: Likewise. * libpager/seqnos.c (_pager_update_seqno): Move the actual functionality... (_pager_update_seqno_p): ... into a new function that can be called with a pointer to struct pager. * libpager/priv.h (_pager_update_seqno_p): New declaration.
2014-03-21libpager: fix potential deadlockJustus Winter
This patch releases the interlock before doing an rpc call, analogous to 901c61a1d25e7c8963e51012760a82730eda1910. * libpager/pager-attr.c (pager_change_attributes): Release interlock before calling memory_object_change_attributes, to let the callbacks take it.
2014-03-21libpager: fix comment of pager_change_attributesJustus Winter
* libpager/pager-attr.c: Fix comment. * libpager/pager.h: Likewise.
2014-02-25libpager: improve the pager_demuxer functionJustus Winter
Handle multiple request types as recommended by the Mach Server Writer's Guide section 4, subsection "Handling Multiple Request Types". This avoids initializing the reply message in every X_server function. The reply message has already been properly initialized in libports, so there is no need to call mig_reply_setup. * libpager/demuxer.c (pager_demuxer): Improve the demuxer function.
2013-11-09Normalize whitespace at the end of each file to '\n'Justus Winter
Some files were not normalized. In console/motd.UTF8 the additional newline is intentional. Empty files were excluded as well.
2013-09-16Handle notification on page evictionRichard Braun
If requested by the user, make libpager call pager_notify_evict when a page is flushed out by the kernel. Based on work by Ognyan Kulev. * console/pager.c (pager_notify_evict): New function. (user_pager_create): Update call to pager_create. * ext2fs/pager.c: (pager_notify_evict): New function. (create_disk_pager): Update call to diskfs_start_disk_pager. (diskfs_get_filemap): Update call to pager_create. * fatfs/pager.c: (pager_notify_evict): New function. (create_fat_pager): Update call to diskfs_start_disk_pager. (diskfs_get_filemap): Update call to pager_create. * isofs/pager.c: (pager_notify_evict): New function. (create_disk_pager): Update call to diskfs_start_disk_pager. (diskfs_get_filemap): Update call to pager_create. * libdiskfs/disk-pager.c (diskfs_start_disk_pager): Update definition and call to pager_create. * libdiskfs/diskfs-pager.h (diskfs_start_disk_pager): Update declaration. * libpager/data-request.c (_pager_seqnos_memory_object_data_request): Take pager's `notify_on_evict' member into account when calling memory_object_data_supply. * libpager/data-return.c (_pager_do_write_request): Handle user notification on page flush. * libpager/pager-create.c (pager_create): Update definition and set pager's `notify_on_evict' member. * libpager/pager.h (pager_create): Update declaration. (pager_notify_evict): New declaration. * libpager/priv.h (struct pager): New `notify_on_evict' member. * storeio/pager.c: (pager_notify_evict): New function. (dev_get_memory_object): Update call to pager_create. * tmpfs/pager-stubs.c (pager_notify_evict): New function. * ufs/pager.c (pager_notify_evict): New function. (create_disk_pager): Update call to diskfs_start_disk_pager. (diskfs_get_filemap): Update call to pager_create.
2012-11-27Complete switch from cthreads to pthreadsSamuel Thibault
* console/input.c: Switch comment from cthreads to pthreads. * libnetfs/file-get-fs-options.c: Likewise * libnetfs/fsys-get-options.c: Likewise * libnetfs/fsys-set-options.c: Likewise * libnetfs/shutdown.c: Likewise * libpager/lock-object.c: Likewise * nfsd/cache.c: Set back replycachelock as static variable. * term/hurdio.c: Use pthread_hurd_cond_wait_np instead of pthread_cond_wait.
2012-11-27Switch from cthreads to pthreadsRichard Braun
Makefiles, headers, types, macros and function calls are renamed where appropriate. Most of this work was done by Barry deFreese and Thomas DiModica. * auth/Makefile: Switch from cthreads to pthreads. * auth/auth.c: Likewise. * boot/Makefile: Likewise. * boot/boot.c: Likewise. * boot/ux.c: Likewise. * console-client/Makefile: Likewise. * console-client/console.c: Likewise. * console-client/driver.c: Likewise. * console-client/driver.h: Likewise. * console-client/generic-speaker.c: Likewise. * console-client/kbd-repeat.c: Likewise. * console-client/ncursesw.c: Likewise. * console-client/pc-kbd.c: Likewise. * console-client/pc-mouse.c: Likewise. * console-client/timer.c: Likewise. * console-client/trans.c: Likewise. * console-client/vga.c: Likewise. * console/Makefile: Likewise. * console/console.c: Likewise. * console/display.c: Likewise. * console/input.c: Likewise. * console/pager.c: Likewise. * defpager/backing.c: Likewise. * exec/Makefile: Likewise. * exec/exec.c: Likewise. * exec/hashexec.c: Likewise. * exec/priv.h: Likewise. * ext2fs/Makefile: Likewise. * ext2fs/balloc.c: Likewise. * ext2fs/dir.c: Likewise. * ext2fs/ext2fs.c: Likewise. * ext2fs/ext2fs.h: Likewise. * ext2fs/ialloc.c: Likewise. * ext2fs/inode.c: Likewise. * ext2fs/msg.c: Likewise. * ext2fs/pager.c: Likewise. * ext2fs/pokel.c: Likewise. * ext2fs/storeinfo.c: Likewise. * ext2fs/truncate.c: Likewise. * fatfs/Makefile: Likewise. * fatfs/dir.c: Likewise. * fatfs/fat.c: Likewise. * fatfs/fatfs.h: Likewise. * fatfs/inode.c: Likewise. * fatfs/main.c: Likewise. * fatfs/pager.c: Likewise. * fatfs/virt-inode.c: Likewise. * ftpfs/Makefile: Likewise. * ftpfs/ccache.c: Likewise. * ftpfs/ccache.h: Likewise. * ftpfs/conn.c: Likewise. * ftpfs/dir.c: Likewise. * ftpfs/fs.c: Likewise. * ftpfs/ftpfs.c: Likewise. * ftpfs/ftpfs.h: Likewise. * ftpfs/ncache.c: Likewise. * ftpfs/netfs.c: Likewise. * ftpfs/node.c: Likewise. * hostmux/Makefile: Likewise. * hostmux/hostmux.h: Likewise. * hostmux/mux.c: Likewise. * hostmux/node.c: Likewise. * hostmux/stubs.c: Likewise. * hurd/shared.h: Likewise. * isofs/Makefile: Likewise. * isofs/inode.c: Likewise. * isofs/lookup.c: Likewise. * isofs/main.c: Likewise. * isofs/pager.c: Likewise. * libcons/Makefile: Likewise. * libcons/cons-switch.c: Likewise. * libcons/cons.h: Likewise. * libcons/dir-changed.c: Likewise. * libcons/file-changed.c: Likewise. * libcons/init-init.c: Likewise. * libcons/vcons-close.c: Likewise. * libcons/vcons-input.c: Likewise. * libcons/vcons-move-mouse.c: Likewise. * libcons/vcons-open.c: Likewise. * libcons/vcons-scrollback.c: Likewise. * libdiskfs/Makefile: Likewise. * libdiskfs/boot-start.c: Likewise. * libdiskfs/dead-name.c: Likewise. * libdiskfs/dir-chg.c: Likewise. * libdiskfs/dir-link.c: Likewise. * libdiskfs/dir-lookup.c: Likewise. * libdiskfs/dir-mkdir.c: Likewise. * libdiskfs/dir-mkfile.c: Likewise. * libdiskfs/dir-readdir.c: Likewise. * libdiskfs/dir-rename.c: Likewise. * libdiskfs/dir-renamed.c: Likewise. * libdiskfs/dir-rmdir.c: Likewise. * libdiskfs/dir-unlink.c: Likewise. * libdiskfs/disk-pager.c: Likewise. * libdiskfs/diskfs-pager.h: Likewise. * libdiskfs/diskfs.h: Likewise. * libdiskfs/file-access.c: Likewise. * libdiskfs/file-chg.c: Likewise. * libdiskfs/file-exec.c: Likewise. * libdiskfs/file-get-fs-opts.c: Likewise. * libdiskfs/file-get-trans.c: Likewise. * libdiskfs/file-get-transcntl.c: Likewise. * libdiskfs/file-getcontrol.c: Likewise. * libdiskfs/file-getfh.c: Likewise. * libdiskfs/file-lock-stat.c: Likewise. * libdiskfs/file-lock.c: Likewise. * libdiskfs/file-reparent.c: Likewise. * libdiskfs/file-set-trans.c: Likewise. * libdiskfs/file-sync.c: Likewise. * libdiskfs/file-syncfs.c: Likewise. * libdiskfs/fsys-getroot.c: Likewise. * libdiskfs/fsys-options.c: Likewise. * libdiskfs/fsys-syncfs.c: Likewise. * libdiskfs/ifsock.c: Likewise. * libdiskfs/init-first.c: Likewise. * libdiskfs/init-init.c: Likewise. * libdiskfs/init-startup.c: Likewise. * libdiskfs/io-duplicate.c: Likewise. * libdiskfs/io-get-conch.c: Likewise. * libdiskfs/io-identity.c: Likewise. * libdiskfs/io-map-cntl.c: Likewise. * libdiskfs/io-map.c: Likewise. * libdiskfs/io-modes-get.c: Likewise. * libdiskfs/io-modes-off.c: Likewise. * libdiskfs/io-modes-on.c: Likewise. * libdiskfs/io-modes-set.c: Likewise. * libdiskfs/io-owner-get.c: Likewise. * libdiskfs/io-owner-mod.c: Likewise. * libdiskfs/io-prenotify.c: Likewise. * libdiskfs/io-read.c: Likewise. * libdiskfs/io-readable.c: Likewise. * libdiskfs/io-reauthenticate.c: Likewise. * libdiskfs/io-rel-conch.c: Likewise. * libdiskfs/io-restrict-auth.c: Likewise. * libdiskfs/io-revoke.c: Likewise. * libdiskfs/io-seek.c: Likewise. * libdiskfs/io-sigio.c: Likewise. * libdiskfs/io-stat.c: Likewise. * libdiskfs/io-write.c: Likewise. * libdiskfs/lookup.c: Likewise. * libdiskfs/name-cache.c: Likewise. * libdiskfs/node-drop.c: Likewise. * libdiskfs/node-make.c: Likewise. * libdiskfs/node-nput.c: Likewise. * libdiskfs/node-nputl.c: Likewise. * libdiskfs/node-nref.c: Likewise. * libdiskfs/node-nrefl.c: Likewise. * libdiskfs/node-nrele.c: Likewise. * libdiskfs/node-nrelel.c: Likewise. * libdiskfs/peropen-rele.c: Likewise. * libdiskfs/priv.h: Likewise. * libdiskfs/shutdown.c: Likewise. * libdiskfs/sync-interval.c: Likewise. * libfshelp/Makefile: Likewise. * libfshelp/fetch-root.c: Likewise. * libfshelp/fshelp.h: Likewise. * libfshelp/get-identity.c: Likewise. * libfshelp/lock-acquire.c: Likewise. * libfshelp/lock-init.c: Likewise. * libfshelp/locks.h: Likewise. * libfshelp/set-active.c: Likewise. * libfshelp/trans.h: Likewise. * libfshelp/transbox-init.c: Likewise. * libiohelp/Makefile: Likewise. * libiohelp/get_conch.c: Likewise. * libiohelp/handle_io_release_conch.c: Likewise. * libiohelp/initialize_conch.c: Likewise. * libiohelp/iohelp.h: Likewise. * libiohelp/verify_user_conch.c: Likewise. * libnetfs/Makefile: Likewise. * libnetfs/dir-lookup.c: Likewise. * libnetfs/dir-mkdir.c: Likewise. * libnetfs/dir-mkfile.c: Likewise. * libnetfs/dir-readdir.c: Likewise. * libnetfs/dir-rmdir.c: Likewise. * libnetfs/dir-unlink.c: Likewise. * libnetfs/drop-node.c: Likewise. * libnetfs/file-chauthor.c: Likewise. * libnetfs/file-check-access.c: Likewise. * libnetfs/file-chflags.c: Likewise. * libnetfs/file-chmod.c: Likewise. * libnetfs/file-chown.c: Likewise. * libnetfs/file-exec.c: Likewise. * libnetfs/file-get-storage-info.c: Likewise. * libnetfs/file-get-translator.c: Likewise. * libnetfs/file-lock-stat.c: Likewise. * libnetfs/file-lock.c: Likewise. * libnetfs/file-reparent.c: Likewise. * libnetfs/file-set-size.c: Likewise. * libnetfs/file-set-translator.c: Likewise. * libnetfs/file-statfs.c: Likewise. * libnetfs/file-sync.c: Likewise. * libnetfs/file-syncfs.c: Likewise. * libnetfs/file-utimes.c: Likewise. * libnetfs/fsys-getroot.c: Likewise. * libnetfs/fsys-set-options.c: Likewise. * libnetfs/init-init.c: Likewise. * libnetfs/io-clear-some-openmodes.c: Likewise. * libnetfs/io-duplicate.c: Likewise. * libnetfs/io-get-openmodes.c: Likewise. * libnetfs/io-get-owner.c: Likewise. * libnetfs/io-identity.c: Likewise. * libnetfs/io-mod-owner.c: Likewise. * libnetfs/io-read.c: Likewise. * libnetfs/io-readable.c: Likewise. * libnetfs/io-reauthenticate.c: Likewise. * libnetfs/io-restrict-auth.c: Likewise. * libnetfs/io-revoke.c: Likewise. * libnetfs/io-seek.c: Likewise. * libnetfs/io-set-all-openmodes.c: Likewise. * libnetfs/io-set-some-openmodes.c: Likewise. * libnetfs/io-stat.c: Likewise. * libnetfs/io-write.c: Likewise. * libnetfs/make-node.c: Likewise. * libnetfs/netfs.h: Likewise. * libnetfs/nput.c: Likewise. * libnetfs/nref.c: Likewise. * libnetfs/nrele.c: Likewise. * libnetfs/release-peropen.c: Likewise. * libnetfs/shutdown.c: Likewise. * libpager/Makefile: Likewise. * libpager/chg-compl.c: Likewise. * libpager/clean.c: Likewise. * libpager/data-request.c: Likewise. * libpager/data-return.c: Likewise. * libpager/data-unlock.c: Likewise. * libpager/inhibit-term.c: Likewise. * libpager/lock-completed.c: Likewise. * libpager/lock-object.c: Likewise. * libpager/mark-error.c: Likewise. * libpager/no-senders.c: Likewise. * libpager/object-init.c: Likewise. * libpager/object-terminate.c: Likewise. * libpager/offer-page.c: Likewise. * libpager/pager-attr.c: Likewise. * libpager/pager-create.c: Likewise. * libpager/pager-shutdown.c: Likewise. * libpager/priv.h: Likewise. * libpager/seqnos.c: Likewise. * libpipe/Makefile: Likewise. * libpipe/pipe.c: Likewise. * libpipe/pipe.h: Likewise. * libports/Makefile: Likewise. * libports/begin-rpc.c: Likewise. * libports/bucket-iterate.c: Likewise. * libports/claim-right.c: Likewise. * libports/class-iterate.c: Likewise. * libports/complete-deallocate.c: Likewise. * libports/count-bucket.c: Likewise. * libports/count-class.c: Likewise. * libports/create-bucket.c: Likewise. * libports/create-internal.c: Likewise. * libports/destroy-right.c: Likewise. * libports/enable-bucket.c: Likewise. * libports/enable-class.c: Likewise. * libports/end-rpc.c: Likewise. * libports/get-right.c: Likewise. * libports/import-port.c: Likewise. * libports/inhibit-all-rpcs.c: Likewise. * libports/inhibit-bucket-rpcs.c: Likewise. * libports/inhibit-class-rpcs.c: Likewise. * libports/inhibit-port-rpcs.c: Likewise. * libports/init.c: Likewise. * libports/interrupt-notified-rpcs.c: Likewise. * libports/interrupt-on-notify.c: Likewise. * libports/interrupt-operation.c: Likewise. * libports/interrupt-rpcs.c: Likewise. * libports/interrupted.c: Likewise. * libports/lookup-port.c: Likewise. * libports/manage-multithread.c: Likewise. * libports/no-senders.c: Likewise. * libports/port-deref-weak.c: Likewise. * libports/port-deref.c: Likewise. * libports/port-ref-weak.c: Likewise. * libports/port-ref.c: Likewise. * libports/ports.h: Likewise. * libports/reallocate-from-external.c: Likewise. * libports/reallocate-port.c: Likewise. * libports/resume-all-rpcs.c: Likewise. * libports/resume-bucket-rpcs.c: Likewise. * libports/resume-class-rpcs.c: Likewise. * libports/resume-port-rpcs.c: Likewise. * libports/stubs.c: Likewise. * libports/transfer-right.c: Likewise. * libstore/Makefile: Likewise. * libstore/gunzip.c: Likewise. * libstore/part.c: Likewise. * libstore/unzipstore.c: Likewise. * libthreads/Makefile: Likewise. * libtreefs/dir-lookup.c: Likewise. * libtreefs/fsys-getroot.c: Likewise. * libtreefs/fsys-hooks.c: Likewise. * libtreefs/fsys.c: Likewise. * libtreefs/trans-help.c: Likewise. * libtreefs/trans-start.c: Likewise. * libtreefs/treefs.h: Likewise. * libtrivfs/cntl-create.c: Likewise. * libtrivfs/dyn-classes.c: Likewise. * libtrivfs/io-reauthenticate.c: Likewise. * libtrivfs/io-restrict-auth.c: Likewise. * libtrivfs/protid-clean.c: Likewise. * libtrivfs/protid-dup.c: Likewise. * libtrivfs/trivfs.h: Likewise. * mach-defpager/Makefile: Likewise. * mach-defpager/default_pager.c: Likewise. * mach-defpager/kalloc.c: Likewise. * mach-defpager/main.c: Likewise. * nfs/Makefile: Likewise. * nfs/cache.c: Likewise. * nfs/main.c: Likewise. * nfs/mount.c: Likewise. * nfs/name-cache.c: Likewise. * nfs/nfs.h: Likewise. * nfs/ops.c: Likewise. * nfs/rpc.c: Likewise. * nfsd/Makefile: Likewise. * nfsd/cache.c: Likewise. * nfsd/loop.c: Likewise. * nfsd/main.c: Likewise. * nfsd/nfsd.h: Likewise. * pfinet/Makefile: Likewise. * pfinet/ethernet.c: Likewise. * pfinet/glue-include/asm/spinlock.h: Likewise. * pfinet/glue-include/linux/interrupt.h: Likewise. * pfinet/glue-include/linux/sched.h: Likewise. * pfinet/glue-include/linux/timer.h: Likewise. * pfinet/glue-include/linux/wait.h: Likewise. * pfinet/iioctl-ops.c: Likewise. * pfinet/io-ops.c: Likewise. * pfinet/kmem_cache.c: Likewise. * pfinet/main.c: Likewise. * pfinet/options.c: Likewise. * pfinet/pfinet-ops.c: Likewise. * pfinet/pfinet.h: Likewise. * pfinet/sched.c: Likewise. * pfinet/socket-ops.c: Likewise. * pfinet/socket.c: Likewise. * pfinet/timer-emul.c: Likewise. * pfinet/tunnel.c: Likewise. * pflocal/Makefile: Likewise. * pflocal/connq.c: Likewise. * pflocal/io.c: Likewise. * pflocal/sock.c: Likewise. * pflocal/sock.h: Likewise. * pflocal/socket.c: Likewise. * pflocal/sserver.c: Likewise. * proc/Makefile: Likewise. * proc/info.c: Likewise. * proc/main.c: Likewise. * proc/mgt.c: Likewise. * proc/msg.c: Likewise. * proc/proc.h: Likewise. * proc/stubs.c: Likewise. * proc/wait.c: Likewise. * storeio/Makefile: Likewise. * storeio/dev.c: Likewise. * storeio/dev.h: Likewise. * storeio/open.c: Likewise. * storeio/open.h: Likewise. * storeio/pager.c: Likewise. * storeio/storeio.c: Likewise. * term/Makefile: Likewise. * term/devio.c: Likewise. * term/hurdio.c: Likewise. * term/main.c: Likewise. * term/munge.c: Likewise. * term/ptyio.c: Likewise. * term/term.h: Likewise. * term/users.c: Likewise. * tmpfs/Makefile: Likewise. * tmpfs/dir.c: Likewise. * tmpfs/node.c: Likewise. * tmpfs/tmpfs.c: Likewise. * tmpfs/tmpfs.h: Likewise. * trans/Makefile: Likewise. * trans/fakeroot.c: Likewise. * trans/fifo.c: Likewise. * trans/hello-mt.c: Likewise. * trans/new-fifo.c: Likewise. * trans/streamio.c: Likewise. * ufs/Makefile: Likewise. * ufs/alloc.c: Likewise. * ufs/dir.c: Likewise. * ufs/hyper.c: Likewise. * ufs/inode.c: Likewise. * ufs/main.c: Likewise. * ufs/pager.c: Likewise. * ufs/pokeloc.c: Likewise. * ufs/sizes.c: Likewise. * ufs/ufs.h: Likewise. * usermux/Makefile: Likewise. * usermux/mux.c: Likewise. * usermux/node.c: Likewise. * usermux/usermux.h: Likewise. * utils/Makefile: Likewise. * utils/fakeauth.c: Likewise. * utils/rpctrace.c: Likewise.
2012-09-23Fix pager deadlockSamuel Thibault
http://lists.gnu.org/archive/html/bug-hurd/2010-03/msg00127.html * libpager/lock-object.c (_pager_lock_object): Release interlock before calling memory_object_lock_request, to let the callbacks take it.
2012-06-05Add header inclusion guardsSamuel Thibault
* console/priv.h [!_CONSOLE_PRIV_H]: Define _CONSOLE_PRIV_H. * libnetfs/priv.h [!_LIBNETFS_PRIV_H]: Define _LIBNETFS_PRIV_H. * libpager/priv.h [!_LIBPAGER_PRIV_H]: Define _LIBPAGER_PRIV_H.
2012-04-08Replace fragile manual »make dist« system with one based on »git archive«.Thomas Schwinge
* Makeconf (lndist): Remove target. (dist-hook, dist.tar): New targets. * Makefile (dist): Rewrite this target's as well as accompanying rules. (%-lndist, cp-linked-files, $(lf-inst)): Remove targets. (%.bz2, %.gz, %/dist-hook): New targets. (DISTFILES): Set. * doc/Makefile (DISTFILES): Set. * doc/Makefile (lndist, lndist-info-targets): Remove targets. * include/Makefile (lndist): Remove target. * libthreads/Makefile (lndist, lndist-i386-files, lndist-map-file): Remove targets. * pfinet/Makefile (lndist, lndist-linux-src-net-core-files) (lndist-linux-src-net-ethernet-files, lndist-linux-src-net-ipv4-files) (lndist-linux-src-net-ipv6-files, lndist-linux-src-asm-files) (lndist-linux-src-include-linux-files, lndist-linux-src-include-net-files) (lndist-linux-src-include-asm-files, lndist-glue-include-linux-files) (lndist-glue-include-asm-files): Remove targets. * auth/Makefile (LCLHDRS): Don't set. * boot/Makefile (LCLHDRS, DIST_FILES): Likewise. * bsdfsck/Makefile (LCLHDRS): Likewise. * config/Makefile (DIST_FILES): Likewise. * console-client/Makefile (LCLHDRS): Likewise. * console/Makefile (LCLHDRS, DIST_FILES): Likewise. * doc/Makefile (DIST_FILES): Likewise. * exec/Makefile (LCLHDRS, DIST_FILES): Likewise. * ext2fs/Makefile (LCLHDRS): Likewise. * fatfs/Makefile (LCLHDRS): Likewise. * ftpfs/Makefile (LCLHDRS): Likewise. * hostmux/Makefile (LCLHDRS): Likewise. * hurd/Makefile (DIST_FILES): Likewise. * include/Makefile (LCLHDRS): Likewise. * isofs/Makefile (LCLHDRS, DIST_FILES): Likewise. * libcons/Makefile (LCLHDRS): Likewise. * libdirmgt/Makefile (LCLHDRS): Likewise. * libdiskfs/Makefile (LCLHDRS): Likewise. * libfshelp/Makefile (LCLHDRS): Likewise. * libftpconn/Makefile (LCLHDRS): Likewise. * libihash/Makefile (LCLHDRS): Likewise. * libiohelp/Makefile (LCLHDRS): Likewise. * libnetfs/Makefile (LCLHDRS): Likewise. * libpager/Makefile (LCLHDRS): Likewise. * libpipe/Makefile (LCLHDRS): Likewise. * libports/Makefile (LCLHDRS): Likewise. * libps/Makefile (LCLHDRS): Likewise. * libshouldbeinlibc/Makefile (LCLHDRS): Likewise. * libstore/Makefile (LCLHDRS, DIST_FILES): Likewise. * libthreads/Makefile (LCLHDRS): Likewise. * libtreefs/Makefile (LCLHDRS): Likewise. * libtrivfs/Makefile (LCLHDRS): Likewise. * mach-defpager/Makefile (LCLHDRS): Likewise. * nfs/Makefile (LCLHDRS): Likewise. * nfsd/Makefile (LCLHDRS): Likewise. * pfinet/Makefile (LCLHDRS): Likewise. * pflocal/Makefile (LCLHDRS): Likewise. * proc/Makefile (LCLHDRS, DIST_FILES): Likewise. * release/Makefile (DIST_FILES): Likewise. * storeio/Makefile (LCLHDRS): Likewise. * sutils/Makefile (LCLHDRS): Likewise. * term/Makefile (LCLHDRS, DIST_FILES): Likewise. * tmpfs/Makefile (LCLHDRS): Likewise. * ufs-fsck/Makefile (LCLHDRS): Likewise. * ufs/Makefile (LCLHDRS): Likewise. * usermux/Makefile (LCLHDRS): Likewise. * utils/Makefile (LCLHDRS): Likewise.
2011-12-29Upgrade pager-memcpy parametersSamuel Thibault
* libpager/pager-memcpy.c (VMCOPY_BETTER_THAN_MEMCPY): Increase to 8 pages. (VMCOPY_WINDOW_DEFAULT_SIZE, MEMCPY_WINDOW_DEFAULT_SIZE): Increase to 32 pages.
2011-11-24Further port sequence number cleanup.Thomas Schwinge
* libpager/priv.h (struct pager): Make seqno member of type mach_port_seqno_t. Change all users. * libpager/seqnos.c (_pager_stubs_update_seqno): Rename to _pager_update_seqno. Change all users. * libpager/demuxer.c (pager_demuxer): Make use of _pager_update_seqno. * libpager/notify-stubs.c: Remove unused attribute where no longer appropriate.
2011-11-24Don't forget to update port sequence numbers in stub functions.Sergio Lopez
* seqnos.c (_pager_stubs_update_seqno): New function. * priv.h (_pager_stubs_update_seqno): New function. * notify-stubs.c (_pager_do_seqnos_mach_notify_port_deleted): Call _pager_stubs_update_seqno to properly update seqno. (_pager_do_seqnos_mach_notify_msg_accepted): Likewise. (_pager_do_seqnos_mach_notify_port_destroyed): Likewise. (_pager_do_seqnos_mach_notify_send_once): Likewise. (_pager_do_seqnos_mach_notify_dead_name): Likewise. * stubs.c (_pager_seqnos_memory_object_copy): Likewise. (_pager_seqnos_memory_object_data_write): Likewise. (_pager_seqnos_memory_object_supply_completed): Likewise.
2011-08-20fix common misspellingsJonathan Neuschäfer
* Fix spelling with codespell[1] and manually review it. [1] http://git.profusion.mobi/cgit.cgi/lucas/codespell/
2010-08-01Fix copyrightsSamuel Thibault
2010-08-01Simplify error exit pathSamuel Thibault
* libpager/data-request.c (_pager_seqnos_memory_object_data_request): Use allow_release_out label instead of re-doing unlocks by hand.
2010-03-21Fix allowing termination on some error pathSamuel Thibault
* libpager/data-request.c (_pager_seqnos_memory_object_data_request): when _pager_pagemap_resize returns an error, instead of goto release_out, goto new label allow_release_out thats calls _pager_allow_termination before proceeding with release_out.
2009-07-11Switch to the new ChangeLog style.Thomas Schwinge
* ChangeLog: Wipe out content, and add instructions about how to get it back. * auth/ChangeLog: Remove file. * benchmarks/ChangeLog: Likewise. * boot/ChangeLog: Likewise. * bsdfsck/ChangeLog: Likewise. * config/ChangeLog: Likewise. * console-client/ChangeLog: Likewise. * console/ChangeLog: Likewise. * daemons/ChangeLog: Likewise. * defpager/ChangeLog: Likewise. * doc/ChangeLog: Likewise. * exec/ChangeLog: Likewise. * ext2fs/ChangeLog: Likewise. * fatfs/ChangeLog: Likewise. * fstests/ChangeLog: Likewise. * ftpfs/ChangeLog: Likewise. * hostmux/ChangeLog: Likewise. * hurd/ChangeLog: Likewise. * include/ChangeLog: Likewise. * init/ChangeLog: Likewise. * isofs/ChangeLog: Likewise. * libcons/ChangeLog: Likewise. * libdirmgt/ChangeLog: Likewise. * libdiskfs/ChangeLog: Likewise. * libfshelp/ChangeLog: Likewise. * libftpconn/ChangeLog: Likewise. * libhurdbugaddr/ChangeLog: Likewise. * libihash/ChangeLog: Likewise. * libiohelp/ChangeLog: Likewise. * libnetfs/ChangeLog: Likewise. * libpager/ChangeLog: Likewise. * libpipe/ChangeLog: Likewise. * libports/ChangeLog: Likewise. * libps/ChangeLog: Likewise. * libshouldbeinlibc/ChangeLog: Likewise. * libstore/ChangeLog: Likewise. * libthreads/ChangeLog: Likewise. * libtrivfs/ChangeLog: Likewise. * login/ChangeLog: Likewise. * mach-defpager/ChangeLog: Likewise. * nfs/ChangeLog: Likewise. * nfsd/ChangeLog: Likewise. * pfinet/ChangeLog: Likewise. * pflocal/ChangeLog: Likewise. * proc/ChangeLog: Likewise. * release/ChangeLog: Likewise. * serverboot/ChangeLog: Likewise. * storeio/ChangeLog: Likewise. * sutils/ChangeLog: Likewise. * term/ChangeLog: Likewise. * tmpfs/ChangeLog: Likewise. * trans/ChangeLog: Likewise. * ufs-fsck/ChangeLog: Likewise. * ufs-utils/ChangeLog: Likewise. * ufs/ChangeLog: Likewise. * usermux/ChangeLog: Likewise. * utils/ChangeLog: Likewise.
2007-09-13Typo.Thomas Schwinge
2002-05-132002-05-13 Marcus Brinkmann <marcus@gnu.org>Marcus Brinkmann
* demuxer.c (pager_demuxer): Lookup INP->msgh_local_port, rather than the remote port, as the kernel swaps them in transit.
2002-05-08.Roland McGrath
2002-05-082002-05-07 Roland McGrath <roland@frob.com>Roland McGrath
* data-request.c (_pager_seqnos_memory_object_data_request): Use %z format modifier for vm_size_t argument. * data-return.c (_pager_do_write_request): Likewise. * data-unlock.c (_pager_seqnos_memory_object_data_unlock): Likewise.
2002-04-11ChangeLogNeal H. Walfield
2002-04-112002-04-10 Neal H Walfield,,, <neal@cs.uml.edu>Neal H. Walfield
* pager-memcpy.c (pager_memcpy): Pass not the block but the byte offset of the page in question to pager_get_error.
2002-04-10*** empty log message ***Neal H. Walfield
2002-04-102002-04-10 Neal H Walfield <neal@cs.uml.edu>Neal H. Walfield
* pager-memcpy.c (VMCOPY_BETTER_THAN_MEMCPY): New macro. (pager_memcpy): Rewritten to use vmcopy.
2002-04-02Reverting unintended change.Neal H. Walfield
2002-04-02ChangeLogNeal H. Walfield
2002-04-022002-04-01 Neal H Walfield <neal@cs.uml.edu>Neal H. Walfield
* data-request.c (_pager_seqnos_memory_object_data_request): Must hold P->interlock when calling _pager_allow_termination.
2002-01-19.Roland McGrath
2002-01-192002-01-19 Roland McGrath <roland@frob.com>Roland McGrath
* demuxer.c (pager_demuxer): Fix last change so it works. Add comment.
2002-01-182001-01-16 Marcus Brinkmann <marcus@gnu.org>Marcus Brinkmann
* demuxer.c (pager_demuxer): If the message was not accepted by one of the servers, acquire a reference to the pager and its lock, and wait until all previous messages have been processed. This makes sure that the next message that arrives can proceed. Reported by Neal H Walfield <neal@cs.uml.edu>
2001-12-29.Roland McGrath
2001-12-292001-12-29 Roland McGrath <roland@frob.com>Roland McGrath
* data-init.c, object-create.c: Removed obsolete files.
2001-02-26.Roland McGrath
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 11:20:42 +0000