/* * fs/bfs/bfs.h * Copyright (C) 1999 Tigran Aivazian */ #ifndef _FS_BFS_BFS_H #define _FS_BFS_BFS_H #include /* * BFS file system in-core superblock info */ struct bfs_sb_info { unsigned long si_blocks; unsigned long si_freeb; unsigned long si_freei; unsigned long si_lf_eblk; unsigned long si_lasti; unsigned long *si_imap; struct mutex bfs_lock; }; /* * BFS file system in-core inode info */ struct bfs_inode_info { unsigned long i_dsk_ino; /* inode number from the disk, can be 0 */ unsigned long i_sblock; unsigned long i_eblock; struct inode vfs_inode; }; static inline struct bfs_sb_info *BFS_SB(struct super_block *sb) { return sb->s_fs_info; } static inline struct bfs_inode_info *BFS_I(struct inode *inode) { return container_of(inode, struct bfs_inode_info, vfs_inode); } #define printf(format, args...) \ printk(KERN_ERR "BFS-fs: %s(): " format, __func__, ## args) /* inode.c */ extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino); extern void bfs_dump_imap(const char *, struct super_block *); /* file.c */ extern const struct inode_operations bfs_file_inops; extern const struct file_operations bfs_file_operations; extern const struct address_space_operations bfs_aops; /* dir.c */ extern const struct inode_operations bfs_dir_inops; extern const struct file_operations bfs_dir_operations; #endif /* _FS_BFS_BFS_H */ orm> net-next plumbingsTobias Klauser
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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 /net/dccp/Makefile
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 'net/dccp/Makefile')