Discussions - linux.kernel

Noticed that through glibc fallocate would return 28 rather than -1 and errno = 28 for ENOSPC. The xfs routines uses XFS_ERROR format positive return error codes while the syscalls use negative return codes. Fixup the two cases in xfs_vn_fallocate syscall to convert to negative. Signed-off-by: Jason Gunthorpe <jguntho...@obsidianresearch.c om>... more »

By Jason Gunthorpe - 5:00pm - 1 new of 1 message

	tracepoint: Add signal deliver event
	Add a tracepoint where a process gets a signal. This tracepoint shows signal-number, sa-handler and sa-flag. Changes in v3: - Add docbook style comments Changes in v2: - Add siginfo argument - Fix comment Signed-off-by: Masami Hiramatsu <mhira...@redhat.com> Reviewed-by: Jason Baron <jba...@redhat.com>... more » By Masami Hiramatsu - 5:00pm - 3 new of 3 messages

	ioports 0x100-0x3af and iomem 0xd000-0xdffff, 0xa0000000-0xa0ffffff -- safe to use on x86 for pcmcia?
	Hej! One of the most problematic issues with the whole 16-bit PCMCIA subsystem on the x86 architecture is the following: cards request iomem or ioport resources, but the PCMCIA subsystem does and can not know reliably at what addresses iomem and ioport resources may be used, without interfering with... more » By Dominik Brodowski - 4:40pm - 1 new of 1 message

	Fix regression in direct writes performance due to WRITE_ODIRECT flag removal
	Hi Jens, There seems to be a regression in direct write path due to following commit in for-2.6.33 branch of block tree. commit 1af60fbd759d31f565552fea315c20 33947cfbe6 Author: Jeff Moyer <jmo...@redhat.com> ... block: get rid of the WRITE_ODIRECT flag Marking direct writes as WRITE_SYNC_PLUG instead of WRITE_ODIRECT, sets... more » By Vivek Goyal - 4:30pm - 1 new of 1 message

	move asic3_remove to .devexit.text
	The function asic3_remove is used only wrapped by __devexit_p so define it using __devexit. Signed-off-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.d e> Acked-by: Sam Ravnborg <s...@ravnborg.org> Cc: Samuel Ortiz <sa...@linux.intel.com> Cc: Philipp Zabel <philipp.za...@gmail.com> Cc: Yinghai Lu <yhlu.ker...@gmail.com>... more » By Uwe Kleine-König - 4:10pm - 4 new of 4 messages

	move mc33880_remove to .devexit.text
	The function mc33880_remove is used only wrapped by __devexit_p so define it using __devexit. Signed-off-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.d e> Cc: Andrew Morton <a...@linux-foundation.org> Cc: "Richard Röjfors" <richard.rojfors....@mocean-la bs.com> Cc: linux-ker...@vger.kernel.org ---... more » By Uwe Kleine-König - 4:10pm - 31 new of 31 messages

tracehooks: kill some PT_PTRACED checks

No functional changes, preparation for utrace-ptrace. task_ptrace() != 0 if and only if PT_PTRACED bit is set, kill some PT_PTRACED checks in tracehook.h to ensure the result is the same with or without utrace which doesn't set PT_PTRACED. Signed-off-by: Roland McGrath <rol...@redhat.com> Signed-off-by: Oleg Nesterov <o...@redhat.com>... more »

By Oleg Nesterov - 3:20pm - 1 new of 1 message

	utrace/ptrace
	Hello. This is the new iteration of Roland's utrace patch, this time with "rewrite-ptrace-via-utrace" + cleanups in utrace core. 1-7 are already in -mm tree, I am sending them to simplify the review. 8-12 don not change the behaviour, simple preparations. 13-14 add utrace-ptrace and utrace Please review.... more » By Oleg Nesterov - 3:20pm - 1 new of 1 message

	ptrace: x86: change syscall_trace_leave() to rely on tracehook when stepping
	(already in mm: ptrace-x86-change-syscall_trac e_leave-to-rely-on-tracehook-w hen-stepping.patch) Suggested by Roland. Unlike powepc, x86 always calls tracehook_report_syscall_exit( step) with step = 0, and sends the trap by hand. This results in unnecessary SIGTRAP when PTRACE_SINGLESTEP follows the syscall-exit stop.... more » By Oleg Nesterov - 3:20pm - 1 new of 1 message

	ptrace: x86: implement user_single_step_siginfo()
	(already in mm: ptrace-x86-implement-user_sing le_step_siginfo.patch) Suggested by Roland. Implement user_single_step_siginfo() for x86. Extract this code from send_sigtrap(). Since x86 calls tracehook_report_syscall_exit( step => 0) the new helper is not used yet. Signed-off-by: Oleg Nesterov <o...@redhat.com>... more » By Oleg Nesterov - 3:20pm - 1 new of 1 message