tree 57ed58d87e765323692e463c8b7ee64f702dff0d
parent 937472b00b666ecbf1464502f857ec63b024af72
author david m. richter <richterd@citi.umich.edu> 1185867552 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1185921582 -0700

VFS: fix a race in lease-breaking during truncate

It is possible that another process could acquire a new file lease right
after break_lease() is called during a truncate, but before lease-granting
is disabled by the subsequent get_write_access().  Merely switching the
order of the break_lease() and get_write_access() calls prevents this race.

Signed-off-by: David M. Richter <richterd@citi.umich.edu>
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>