/* * Copyright (C) 2012 Alexander Block. All rights reserved. * Copyright (C) 2012 STRATO. All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License v2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 021110-1307, USA. */ #include "ctree.h" #define BTRFS_SEND_STREAM_MAGIC "btrfs-stream" #define BTRFS_SEND_STREAM_VERSION 1 #define BTRFS_SEND_BUF_SIZE SZ_64K #define BTRFS_SEND_READ_SIZE (48 * SZ_1K) enum btrfs_tlv_type { BTRFS_TLV_U8, BTRFS_TLV_U16, BTRFS_TLV_U32, BTRFS_TLV_U64, BTRFS_TLV_BINARY, BTRFS_TLV_STRING, BTRFS_TLV_UUID, BTRFS_TLV_TIMESPEC, }; struct btrfs_stream_header { char magic[sizeof(BTRFS_SEND_STREAM_MAGIC)]; __le32 version; } __attribute__ ((__packed__)); struct btrfs_cmd_header { /* len excluding the header */ __le32 len; __le16 cmd; /* crc including the header with zero crc field */ __le32 crc; } __attribute__ ((__packed__)); struct btrfs_tlv_header { __le16 tlv_type; /* len excluding the header */ __le16 tlv_len; } __attribute__ ((__packed__)); /* commands */ enum btrfs_send_cmd { BTRFS_SEND_C_UNSPEC, BTRFS_SEND_C_SUBVOL, BTRFS_SEND_C_SNAPSHOT, BTRFS_SEND_C_MKFILE, BTRFS_SEND_C_MKDIR, BTRFS_SEND_C_MKNOD, BTRFS_SEND_C_MKFIFO, BTRFS_SEND_C_MKSOCK, BTRFS_SEND_C_SYMLINK, BTRFS_SEND_C_RENAME, BTRFS_SEND_C_LINK, BTRFS_SEND_C_UNLINK, BTRFS_SEND_C_RMDIR, BTRFS_SEND_C_SET_XATTR, BTRFS_SEND_C_REMOVE_XATTR, BTRFS_SEND_C_WRITE, BTRFS_SEND_C_CLONE, BTRFS_SEND_C_TRUNCATE, BTRFS_SEND_C_CHMOD, BTRFS_SEND_C_CHOWN, BTRFS_SEND_C_UTIMES, BTRFS_SEND_C_END, BTRFS_SEND_C_UPDATE_EXTENT, __BTRFS_SEND_C_MAX, }; #define BTRFS_SEND_C_MAX (__BTRFS_SEND_C_MAX - 1) /* attributes in send stream */ enum { BTRFS_SEND_A_UNSPEC, BTRFS_SEND_A_UUID, BTRFS_SEND_A_CTRANSID, BTRFS_SEND_A_INO, BTRFS_SEND_A_SIZE, BTRFS_SEND_A_MODE, BTRFS_SEND_A_UID, BTRFS_SEND_A_GID, BTRFS_SEND_A_RDEV, BTRFS_SEND_A_CTIME, BTRFS_SEND_A_MTIME, BTRFS_SEND_A_ATIME, BTRFS_SEND_A_OTIME, BTRFS_SEND_A_XATTR_NAME, BTRFS_SEND_A_XATTR_DATA, BTRFS_SEND_A_PATH, BTRFS_SEND_A_PATH_TO, BTRFS_SEND_A_PATH_LINK, BTRFS_SEND_A_FILE_OFFSET, BTRFS_SEND_A_DATA, BTRFS_SEND_A_CLONE_UUID, BTRFS_SEND_A_CLONE_CTRANSID, BTRFS_SEND_A_CLONE_PATH, BTRFS_SEND_A_CLONE_OFFSET, BTRFS_SEND_A_CLONE_LEN, __BTRFS_SEND_A_MAX, }; #define BTRFS_SEND_A_MAX (__BTRFS_SEND_A_MAX - 1) #ifdef __KERNEL__ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg); #endif de5a8a5001687df720b36729c799991cc0faff5'>thermal
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authorEli Cooper <elicooper@gmx.com>2016-03-20 00:58:39 +0800
committerRichard Weinberger <richard@nod.at>2016-05-21 23:37:16 +0200
commit6de5a8a5001687df720b36729c799991cc0faff5 (patch)
tree542d6b18724e71912a73c5bdc9f220404506e6e4 /Documentation/thermal
parent44549e8f5eea4e0a41b487b63e616cb089922b99 (diff)
um: fix FPU state preservation around signal handlers
This patch makes UML saves/restores FPU state from/to the fpstate in pt_regs when setting up or returning from a signal stack, rather than calling ptrace directly. This ensures that FPU state is correctly preserved around signal handlers in a multi-threaded scenario. Signed-off-by: Eli Cooper <elicooper@gmx.com>
Diffstat (limited to 'Documentation/thermal')