Christoph Hellwig 4246a0b63b block: add a bi_error field to struct bio ... Currently we have two different ways to signal an I/O error on a BIO: (1) by clearing the BIO_UPTODATE flag (2) by returning a Linux errno value to the bi_end_io callback The first one has the drawback of only communicating a single possible error (-EIO), and the second one has the drawback of not beeing persistent when bios are queued up, and are not passed along from child to parent bio in the ever more popular chaining scenario. Having both mechanisms available has the additional drawback of utterly confusing driver authors and introducing bugs where various I/O submitters only deal with one of them, and the others have to add boilerplate code to deal with both kinds of error returns. So add a new bi_error field to store an errno value directly in struct bio and remove the existing mechanisms to clean all this up. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2015-07-29 08:55:15 -06:00
..
Kconfig	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-04-14 14:37:47 -07:00
Makefile	bpf: Fix the build on BPF_SYSCALL=y && !CONFIG_TRACING kernels, make it more configurable	2015-04-02 16:28:06 +02:00
blktrace.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
bpf_trace.c	bpf: let kprobe programs use bpf_get_smp_processor_id() helper	2015-06-15 15:53:50 -07:00
ftrace.c	Some clean ups and small fixes, but the biggest change is the addition	2015-04-14 10:49:03 -07:00
power-traces.c	PM / sleep: export suspend_resume trace event	2015-01-30 02:10:41 +01:00
ring_buffer.c	ring-buffer: Add enum names for the context levels	2015-05-29 10:39:08 -04:00
ring_buffer_benchmark.c	This patch series contains several clean ups and even a new trace clock	2015-06-26 14:02:43 -07:00
rpm-traces.c	PM / Runtime: Introduce trace points for tracing rpm_* functions	2011-09-27 22:53:27 +02:00
trace.c	tracing: Rename FTRACE_EVENT_FL_* flags to EVENT_FILE_FL_*	2015-05-13 15:24:57 -04:00
trace.h	tracing: Have branch tracer use recursive field of task struct	2015-07-08 11:53:45 -04:00
trace_benchmark.c	tracing: Only calculate stats of tracepoint benchmarks for 2^32 times	2014-06-06 00:41:38 -04:00
trace_benchmark.h	tracing: Add tracepoint benchmark tracepoint	2014-05-29 22:49:54 -04:00
trace_branch.c	tracing: Have branch tracer use recursive field of task struct	2015-07-08 11:53:45 -04:00
trace_clock.c	tracing: Export tracing clock functions	2015-05-12 15:56:57 -04:00
trace_entries.h	tracing: %pF is only for function pointers	2015-03-25 08:57:22 -04:00
trace_event_perf.c	tracing: Rename ftrace_event_{call,class} to trace_event_{call,class}	2015-05-13 14:06:10 -04:00
trace_events.c	tracing: Rename FTRACE_EVENT_FL_* flags to EVENT_FILE_FL_*	2015-05-13 15:24:57 -04:00
trace_events_filter.c	This patch series contains several clean ups and even a new trace clock	2015-06-26 14:02:43 -07:00
trace_events_filter_test.h	tracing/filter: Add startup tests for events filter	2011-08-19 14:35:59 -04:00
trace_events_trigger.c	tracing: Rename ftrace_raw_##call event structures to trace_event_raw_##call	2015-05-13 21:48:40 -04:00
trace_export.c	tracing: Rename ftrace_event_{call,class} to trace_event_{call,class}	2015-05-13 14:06:10 -04:00
trace_functions.c	tracing/trivial: Fix typos and make an int into a bool	2014-11-20 10:05:36 -05:00
trace_functions_graph.c	tracing: Rename ftrace_event_{call,class} to trace_event_{call,class}	2015-05-13 14:06:10 -04:00
trace_irqsoff.c	tracing: Remove unneeded includes of debugfs.h and fs.h	2015-01-22 11:19:48 -05:00
trace_kdb.c	KGDB/KDB fixes and cleanups	2015-01-09 20:51:10 -08:00
trace_kprobe.c	tracing: Rename ftrace_trigger_soft_disabled() to trace_trigger_soft_disabled()	2015-05-13 15:25:39 -04:00
trace_mmiotrace.c	tracing: Rename ftrace_event_{call,class} to trace_event_{call,class}	2015-05-13 14:06:10 -04:00
trace_nop.c	tracing: Remove unneeded includes of debugfs.h and fs.h	2015-01-22 11:19:48 -05:00
trace_output.c	tracing: Rename ftrace_event_name() to trace_event_name()	2015-05-13 14:20:14 -04:00
trace_output.h	tracing: Rename (un)register_ftrace_event() to (un)register_trace_event()	2015-05-13 14:05:14 -04:00
trace_printk.c	tracing: Use IS_ERR() check for return value of tracing_init_dentry()	2015-01-22 11:19:49 -05:00
trace_probe.c	trace: Don't use __weak in header files	2015-03-25 08:57:23 -04:00
trace_probe.h	tracing: Rename ftrace_event_{call,class} to trace_event_{call,class}	2015-05-13 14:06:10 -04:00
trace_sched_switch.c	tracing: Remove unneeded includes of debugfs.h and fs.h	2015-01-22 11:19:48 -05:00
trace_sched_wakeup.c	tracing: Rename ftrace_event_{call,class} to trace_event_{call,class}	2015-05-13 14:06:10 -04:00
trace_selftest.c	Seems that Peter Zijlstra added a new check that is making old	2014-10-12 07:28:55 -04:00
trace_selftest_dynamic.c	ftrace: Add self-tests for multiple function trace users	2011-05-18 19:24:51 -04:00
trace_seq.c	tracing: use %*pb[l] to print bitmaps including cpumasks and nodemasks	2015-02-13 21:21:37 -08:00
trace_stack.c	tracing: remove use of seq_printf return value	2015-04-15 16:35:25 -07:00
trace_stat.c	tracing: Convert the tracing facility over to use tracefs	2015-02-03 12:48:41 -05:00
trace_stat.h	tracing/stat: Add stat_release() callback	2009-07-10 12:14:05 +02:00
trace_syscalls.c	tracing: Rename ftrace_trigger_soft_disabled() to trace_trigger_soft_disabled()	2015-05-13 15:25:39 -04:00
trace_uprobe.c	tracing: Rename ftrace_trigger_soft_disabled() to trace_trigger_soft_disabled()	2015-05-13 15:25:39 -04:00