/* AFS client file system * * Copyright (C) 2002,5 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include #include #include #include #include #include #include "internal.h" MODULE_DESCRIPTION("AFS Client File System"); MODULE_AUTHOR("Red Hat, Inc."); MODULE_LICENSE("GPL"); unsigned afs_debug; module_param_named(debug, afs_debug, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(debug, "AFS debugging mask"); static char *rootcell; module_param(rootcell, charp, 0); MODULE_PARM_DESC(rootcell, "root AFS cell name and VL server IP addr list"); struct afs_uuid afs_uuid; struct workqueue_struct *afs_wq; /* * get a client UUID */ static int __init afs_get_client_UUID(void) { struct timespec ts; u64 uuidtime; u16 clockseq; int ret; /* read the MAC address of one of the external interfaces and construct * a UUID from it */ ret = afs_get_MAC_address(afs_uuid.node, sizeof(afs_uuid.node)); if (ret < 0) return ret; getnstimeofday(&ts); uuidtime = (u64) ts.tv_sec * 1000 * 1000 * 10; uuidtime += ts.tv_nsec / 100; uuidtime += AFS_UUID_TO_UNIX_TIME; afs_uuid.time_low = uuidtime; afs_uuid.time_mid = uuidtime >> 32; afs_uuid.time_hi_and_version = (uuidtime >> 48) & AFS_UUID_TIMEHI_MASK; afs_uuid.time_hi_and_version |= AFS_UUID_VERSION_TIME; get_random_bytes(&clockseq, 2); afs_uuid.clock_seq_low = clockseq; afs_uuid.clock_seq_hi_and_reserved = (clockseq >> 8) & AFS_UUID_CLOCKHI_MASK; afs_uuid.clock_seq_hi_and_reserved |= AFS_UUID_VARIANT_STD; _debug("AFS UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x", afs_uuid.time_low, afs_uuid.time_mid, afs_uuid.time_hi_and_version, afs_uuid.clock_seq_hi_and_reserved, afs_uuid.clock_seq_low, afs_uuid.node[0], afs_uuid.node[1], afs_uuid.node[2], afs_uuid.node[3], afs_uuid.node[4], afs_uuid.node[5]); return 0; } /* * initialise the AFS client FS module */ static int __init afs_init(void) { int ret; printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 registering.\n"); ret = afs_get_client_UUID(); if (ret < 0) return ret; /* create workqueue */ ret = -ENOMEM; afs_wq = alloc_workqueue("afs", 0, 0); if (!afs_wq) return ret; /* register the /proc stuff */ ret = afs_proc_init(); if (ret < 0) goto error_proc; #ifdef CONFIG_AFS_FSCACHE /* we want to be able to cache */ ret = fscache_register_netfs(&afs_cache_netfs); if (ret < 0) goto error_cache; #endif /* initialise the cell DB */ ret = afs_cell_init(rootcell); if (ret < 0) goto error_cell_init; /* initialise the VL update process */ ret = afs_vlocation_update_init(); if (ret < 0) goto error_vl_update_init; /* initialise the callback update process */ ret = afs_callback_update_init(); if (ret < 0) goto error_callback_update_init; /* create the RxRPC transport */ ret = afs_open_socket(); if (ret < 0) goto error_open_socket; /* register the filesystems */ ret = afs_fs_init(); if (ret < 0) goto error_fs; return ret; error_fs: afs_close_socket(); error_open_socket: afs_callback_update_kill(); error_callback_update_init: afs_vlocation_purge(); error_vl_update_init: afs_cell_purge(); error_cell_init: #ifdef CONFIG_AFS_FSCACHE fscache_unregister_netfs(&afs_cache_netfs); error_cache: #endif afs_proc_cleanup(); error_proc: destroy_workqueue(afs_wq); rcu_barrier(); printk(KERN_ERR "kAFS: failed to register: %d\n", ret); return ret; } /* XXX late_initcall is kludgy, but the only alternative seems to create * a transport upon the first mount, which is worse. Or is it? */ late_initcall(afs_init); /* must be called after net/ to create socket */ /* * clean up on module removal */ static void __exit afs_exit(void) { printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 unregistering.\n"); afs_fs_exit(); afs_kill_lock_manager(); afs_close_socket(); afs_purge_servers(); afs_callback_update_kill(); afs_vlocation_purge(); destroy_workqueue(afs_wq); afs_cell_purge(); #ifdef CONFIG_AFS_FSCACHE fscache_unregister_netfs(&afs_cache_netfs); #endif afs_proc_cleanup(); rcu_barrier(); } module_exit(afs_exit); nfo'> authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800 committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800 commit4759d386d55fef452d692bf101167914437e848e (patch) treee7109c192ec589fcea2a98f9702aa3c0e4009581 /net/nfc/hci parent238d1d0f79f619d75c2cc741d6770fb0986aef24 (diff)parent1db175428ee374489448361213e9c3b749d14900 (diff)
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX updates from Dan Williams: "The completion of Jan's DAX work for 4.10. As I mentioned in the libnvdimm-for-4.10 pull request, these are some final fixes for the DAX dirty-cacheline-tracking invalidation work that was merged through the -mm, ext4, and xfs trees in -rc1. These patches were prepared prior to the merge window, but we waited for 4.10-rc1 to have a stable merge base after all the prerequisites were merged. Quoting Jan on the overall changes in these patches: "So I'd like all these 6 patches to go for rc2. The first three patches fix invalidation of exceptional DAX entries (a bug which is there for a long time) - without these patches data loss can occur on power failure even though user called fsync(2). The other three patches change locking of DAX faults so that ->iomap_begin() is called in a more relaxed locking context and we are safe to start a transaction there for ext4" These have received a build success notification from the kbuild robot, and pass the latest libnvdimm unit tests. There have not been any -next releases since -rc1, so they have not appeared there" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: ext4: Simplify DAX fault path dax: Call ->iomap_begin without entry lock during dax fault dax: Finish fault completely when loading holes dax: Avoid page invalidation races and unnecessary radix tree traversals mm: Invalidate DAX radix tree entries only if appropriate ext2: Return BH_New buffers for zeroed blocks
Diffstat (limited to 'net/nfc/hci')