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
..
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
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
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
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
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
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
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
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