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authorOleg Nesterov <oleg@redhat.com>2016-09-26 18:55:25 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2016-10-14 20:41:59 -0400
commitf1a9622037cd370460fd06bb7e28d0f01ceb8ef1 (patch)
tree647a7c6d70173cbb7c40237a3dcfbd81346014d8 /arch
parent89f39af129382a40d7cd1f6914617282cfeee28e (diff)
downloadlinux-sh-f1a9622037cd370460fd06bb7e28d0f01ceb8ef1.tar.gz
fs/super.c: don't fool lockdep in freeze_super() and thaw_super() paths
sb_wait_write()->percpu_rwsem_release() fools lockdep to avoid the false-positives. Now that xfs was fixed by Dave's commit dbad7c993053 ("xfs: stop holding ILOCK over filldir callbacks") we can remove it and change freeze_super() and thaw_super() to run with s_writers.rw_sem locks held; we add two trivial helpers for that, lockdep_sb_freeze_release() and lockdep_sb_freeze_acquire(). xfstests-dev/check `grep -il freeze tests/*/???` does not trigger any warning from lockdep. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions