Thomas Gleixner
0793a61d4d
performance counters: core code ...
Implement the core kernel bits of Performance Counters subsystem.
The Linux Performance Counter subsystem provides an abstraction of
performance counter hardware capabilities. It provides per task and per
CPU counters, and it provides event capabilities on top of those.
Performance counters are accessed via special file descriptors.
There's one file descriptor per virtual counter used.
The special file descriptor is opened via the perf_counter_open()
system call:
int
perf_counter_open(u32 hw_event_type,
u32 hw_event_period,
u32 record_type,
pid_t pid,
int cpu);
The syscall returns the new fd. The fd can be used via the normal
VFS system calls: read() can be used to read the counter, fcntl()
can be used to set the blocking mode, etc.
Multiple counters can be kept open at a time, and the counters
can be poll()ed.
See more details in Documentation/perf-counters.txt.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-08 15:47:03 +01:00
Revert "ACPI: battery: Convert discharge energy rate to current properly"
2008-12-05 13:30:03 -08:00
libata: blacklist Seagate drives which time out FLUSH_CACHE when used with NCQ
2008-12-01 13:49:27 -05:00
ATM: horizon, fix hrz_probe fail path
2008-11-29 20:42:28 -08:00
[PATCH] fix bogus argument of blkdev_put() in pktcdvd
2008-12-04 04:22:59 -05:00
performance counters: core code
2008-12-08 15:47:03 +01:00
fix talitos
2008-11-30 10:03:36 -08:00
i82875p_edac: fix module remove
2008-12-01 19:55:25 -08:00
drm/i915: Return error in i915_gem_set_to_gtt_domain if we're not in the GTT.
2008-12-04 11:24:47 +10:00
HID: Apple ALU wireless keyboards are bluetooth devices
2008-11-28 15:09:26 +01:00
hwmon: applesmc: make applesmc load automatically on startup
2008-12-01 19:55:24 -08:00
i2c-parport: Fix misplaced parport_release call
2008-11-28 15:24:39 +01:00
alim15x3: fix sparse warning
2008-12-02 20:40:04 +01:00
ieee1394: sbp2: fix race condition in state change
2008-11-29 17:07:56 +01:00
Merge branches 'ehca' and 'mlx4' into for-linus
2008-12-01 10:11:50 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2008-11-30 11:05:21 -08:00
tricky one: hisax sections
2008-11-30 10:03:37 -08:00
rackmeter section fixes
2008-11-30 10:03:37 -08:00
block: fix setting of max_segment_size and seg_boundary mask
2008-12-03 12:55:55 +01:00
em28xx: remove backward compat macro added on a previous fix
2008-12-01 18:04:14 -02:00
drivers/message/i2o/iop.c: cleanup kerneldoc
2008-12-05 13:40:52 -08:00
sgi-gru: call fs_initcall() if statically linked
2008-12-02 15:51:35 -08:00
Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
2008-11-30 11:34:17 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
2008-12-02 15:55:05 -08:00
parport_serial: fix array overflow
2008-12-01 19:55:24 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
2008-12-02 15:55:05 -08:00
rapidio section noise
2008-11-30 10:03:37 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
2008-12-02 15:55:43 -08:00
[SCSI] zfcp: prevent double decrement on host_busy while being busy
2008-12-01 10:18:20 -06:00
Revert "of_platform_driver noise on sparce"
2008-12-01 07:55:14 -08:00
[PATCH 1/2] kill FMODE_NDELAY_NOW
2008-12-04 04:22:57 -05:00
Fix incorrect use of loose in tty/serial drivers
2008-12-05 13:40:52 -08:00
spi: fix spi_s3c24xx_gpio num_chipselect
2008-12-01 19:55:24 -08:00
Fix incorrect use of loose in tty/serial drivers
2008-12-05 13:40:52 -08:00
macfb: Do not overflow fb_fix_screeninfo.id
2008-12-02 20:27:15 +01:00
W1_MASTER_DS1WM should depend on HAVE_CLK
2008-11-30 10:03:36 -08:00
iTCO_wdt: fix typo when setting TCO_EN bit
2008-12-03 16:20:19 -08:00
0793a61d4d