FS-Cache patches for 2013-11-11
FS-Cache: Fix handling of an attempt to store a page that is now beyond EOF
Fix the handling of an attempt to store a page that is now beyond EOF. This
may happen, for example, if the page got pushed for storage before the netfs
file got truncated on the server. In such a case, we should just remove the
excessive pages from the cookie->stores radix tree and wake up the waiter.
This can be seen in /proc/fs/fscache/stats on this line:
Stores : ops=350 run=1895 pgs=1545 rxd=1727 olm=9
where olm=N has N > 0.
Reported-by: Milosz Tanski <milosz@adfin.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Milosz Tanski <milosz@adfin.com>
1 file changed
