/* * (C) 2001 Clemson University and The University of Chicago * * See COPYING in top-level directory. */ /* * Definitions of downcalls used in Linux kernel module. */ #ifndef __DOWNCALL_H #define __DOWNCALL_H /* * Sanitized the device-client core interaction * for clean 32-64 bit usage */ struct orangefs_io_response { __s64 amt_complete; }; struct orangefs_lookup_response { struct orangefs_object_kref refn; }; struct orangefs_create_response { struct orangefs_object_kref refn; }; struct orangefs_symlink_response { struct orangefs_object_kref refn; }; struct orangefs_getattr_response { struct ORANGEFS_sys_attr_s attributes; char link_target[ORANGEFS_NAME_MAX]; }; struct orangefs_mkdir_response { struct orangefs_object_kref refn; }; /* * duplication of some system interface structures so that I don't have * to allocate extra memory */ struct orangefs_dirent { char *d_name; int d_length; struct orangefs_khandle khandle; }; struct orangefs_statfs_response { __s64 block_size; __s64 blocks_total; __s64 blocks_avail; __s64 files_total; __s64 files_avail; }; struct orangefs_fs_mount_response { __s32 fs_id; __s32 id; struct orangefs_khandle root_khandle; }; /* the getxattr response is the attribute value */ struct orangefs_getxattr_response { __s32 val_sz; __s32 __pad1; char val[ORANGEFS_MAX_XATTR_VALUELEN]; }; /* the listxattr response is an array of attribute names */ struct orangefs_listxattr_response { __s32 returned_count; __s32 __pad1; __u64 token; char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN]; __s32 keylen; __s32 __pad2; __s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN]; }; struct orangefs_param_response { union { __s64 value64; __s32 value32[2]; } u; }; #define PERF_COUNT_BUF_SIZE 4096 struct orangefs_perf_count_response { char buffer[PERF_COUNT_BUF_SIZE]; }; #define FS_KEY_BUF_SIZE 4096 struct orangefs_fs_key_response { __s32 fs_keylen; __s32 __pad1; char fs_key[FS_KEY_BUF_SIZE]; }; /* 2.9.6 */ struct orangefs_features_response { __u64 features; }; struct orangefs_downcall_s { __s32 type; __s32 status; /* currently trailer is used only by readdir */ __s64 trailer_size; char *trailer_buf; union { struct orangefs_io_response io; struct orangefs_lookup_response lookup; struct orangefs_create_response create; struct orangefs_symlink_response sym; struct orangefs_getattr_response getattr; struct orangefs_mkdir_response mkdir; struct orangefs_statfs_response statfs; struct orangefs_fs_mount_response fs_mount; struct orangefs_getxattr_response getxattr; struct orangefs_listxattr_response listxattr; struct orangefs_param_response param; struct orangefs_perf_count_response perf_count; struct orangefs_fs_key_response fs_key; struct orangefs_features_response features; } resp; }; struct orangefs_readdir_response_s { __u64 token; __u64 directory_version; __u32 __pad2; __u32 orangefs_dirent_outcount; struct orangefs_dirent *dirent_array; }; #endif /* __DOWNCALL_H */ 6b83e8adf5c48c421a4ca76468'>early
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:38 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commitdd86e373e09fb16b83e8adf5c48c421a4ca76468 (patch)
tree55703c2ea8584e303e342090614e0aab3509ab21 /drivers/usb/early
parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/early')