5fecf3a1e1
Since commit cd678fce4280 ("switch logger to ->write_iter()"), any
attempt to write to the log results in the log data being written over
its own metadata, thus rendering the log unreadable.
The problem was first detected when I ran an Android userspace on the
v3.18-rc1 kernel. However the issue can also be observed with a
non-Android userspace by using echo/cat to write to/from /dev/log_main .
This patch resolves the problem by using a temporary to track the status
of not-yet-committed writes to the log buffer.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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| .. | ||
| ion | ||
| trace | ||
| uapi | ||
| alarm-dev.c | ||
| android_alarm.h | ||
| ashmem.c | ||
| ashmem.h | ||
| binder_trace.h | ||
| binder.c | ||
| binder.h | ||
| Kconfig | ||
| logger.c | ||
| logger.h | ||
| lowmemorykiller.c | ||
| Makefile | ||
| sw_sync.c | ||
| sw_sync.h | ||
| sync_debug.c | ||
| sync.c | ||
| sync.h | ||
| timed_gpio.c | ||
| timed_gpio.h | ||
| timed_output.c | ||
| timed_output.h | ||
| TODO | ||