于 2012年04月26日 23:12, Josef Bacik 写道:
On Thu, Apr 26, 2012 at 03:55:52PM +0800, Xie Miao wrote:
On Thu, Apr 26, 2012 at 11:11 AM, Dave Chinner da...@fromorbit.com wrote:
writeback_inodes_sb(_nr) grabs s_umount lock when it want to start
writeback,
it may bring us deadlock problem when doing
On Thu, Apr 26, 2012 at 11:11 AM, Dave Chinner da...@fromorbit.com wrote:
writeback_inodes_sb(_nr) grabs s_umount lock when it want to start
writeback,
it may bring us deadlock problem when doing umount. So we introduce new
functions -- try_to_writeback_inodes_sb(_nr) -- which use
On Thu, Apr 26, 2012 at 03:55:52PM +0800, Xie Miao wrote:
On Thu, Apr 26, 2012 at 11:11 AM, Dave Chinner da...@fromorbit.com wrote:
writeback_inodes_sb(_nr) grabs s_umount lock when it want to start
writeback,
it may bring us deadlock problem when doing umount. So we introduce new
writeback_inodes_sb(_nr) grabs s_umount lock when it want to start writeback,
it may bring us deadlock problem when doing umount. So we introduce new
functions -- try_to_writeback_inodes_sb(_nr) -- which use down_read_trylock()
instead of down_read() to avoid that deadlock problem.
This idea came
On Thu, Apr 26, 2012 at 10:57:43AM +0800, Miao Xie wrote:
writeback_inodes_sb(_nr) grabs s_umount lock when it want to start writeback,
it may bring us deadlock problem when doing umount. So we introduce new
functions -- try_to_writeback_inodes_sb(_nr) -- which use down_read_trylock()
instead
