/* * debug.h - NTFS kernel debug support. Part of the Linux-NTFS project. * * Copyright (c) 2001-2004 Anton Altaparmakov * * This program/include file 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. * * This program/include file 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 (in the main directory of the Linux-NTFS * distribution in the file COPYING); if not, write to the Free Software * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_NTFS_DEBUG_H #define _LINUX_NTFS_DEBUG_H #include #include "runlist.h" #ifdef DEBUG extern int debug_msgs; extern __printf(4, 5) void __ntfs_debug(const char *file, int line, const char *function, const char *format, ...); /** * ntfs_debug - write a debug level message to syslog * @f: a printf format string containing the message * @...: the variables to substitute into @f * * ntfs_debug() writes a DEBUG level message to the syslog but only if the * driver was compiled with -DDEBUG. Otherwise, the call turns into a NOP. */ #define ntfs_debug(f, a...) \ __ntfs_debug(__FILE__, __LINE__, __func__, f, ##a) extern void ntfs_debug_dump_runlist(const runlist_element *rl); #else /* !DEBUG */ #define ntfs_debug(fmt, ...) \ do { \ if (0) \ no_printk(fmt, ##__VA_ARGS__); \ } while (0) #define ntfs_debug_dump_runlist(rl) do {} while (0) #endif /* !DEBUG */ extern __printf(3, 4) void __ntfs_warning(const char *function, const struct super_block *sb, const char *fmt, ...); #define ntfs_warning(sb, f, a...) __ntfs_warning(__func__, sb, f, ##a) extern __printf(3, 4) void __ntfs_error(const char *function, const struct super_block *sb, const char *fmt, ...); #define ntfs_error(sb, f, a...) __ntfs_error(__func__, sb, f, ##a) #endif /* _LINUX_NTFS_DEBUG_H */ ae7'/>
path: root/net/rxrpc/skbuff.c
diff options
context:
space:
mode:
authorSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-30 19:27:10 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-31 09:13:49 -0500
commit79c6f448c8b79c321e4a1f31f98194e4f6b6cae7 (patch)
tree370efda701f03cccf21e02bb1fdd3b852547d75c /net/rxrpc/skbuff.c
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'net/rxrpc/skbuff.c')