/* * Definitions of structures for vfsv0 quota format */ #ifndef _LINUX_QUOTA_TREE_H #define _LINUX_QUOTA_TREE_H #include #include /* * Structure of header of block with quota structures. It is padded to 16 bytes so * there will be space for exactly 21 quota-entries in a block */ struct qt_disk_dqdbheader { __le32 dqdh_next_free; /* Number of next block with free entry */ __le32 dqdh_prev_free; /* Number of previous block with free entry */ __le16 dqdh_entries; /* Number of valid entries in block */ __le16 dqdh_pad1; __le32 dqdh_pad2; }; #define QT_TREEOFF 1 /* Offset of tree in file in blocks */ #endif /* _LINUX_QUOTAIO_TREE_H */ git'>
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /tools/perf/builtin-buildid-cache.c
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/perf/builtin-buildid-cache.c')