David Teigland 52502b1fba io: use sync io if aio fails ...

io_setup() for aio may fail if a system has reached the
aio request limit.  In this case, fall back to using
sync io.  Also, lvm use of aio can be disabled entirely
with config setting global/use_aio=0.

The system limit for aio requests can be seen from
  /proc/sys/fs/aio-max-nr

The current usage of aio requests can be seen from
  /proc/sys/fs/aio-nr

The system limit for aio requests can be increased by
setting fs.aio-max-nr using sysctl.

Also add last-byte limit to the sync io code.

2018-12-04 14:33:37 -06:00

..

toolcontext.c

io: use sync io if aio fails

2018-12-04 14:33:37 -06:00

toolcontext.h

lvconvert: restrict command matching for no option variant

2018-07-23 11:12:38 -05:00