tree 15497a5e1c48c022858bf4f050225dd70c8d894d
parent 5297908270549b734c7c2556745e2385b6d4941d
author Mateusz Guzik <mguzik@redhat.com> 1507028295 +0200
committer Al Viro <viro@zeniv.linux.org.uk> 1509926287 -0500

vfs: grab the lock instead of blocking in __fd_install during resizing

Explicit locking in the fallback case provides a safe state of the
table. Getting rid of blocking semantics makes __fd_install usable
again in non-sleepable contexts, which easies backporting efforts.

There is a side effect of slightly nicer assembly for the common case
as might_sleep can now be removed.

Signed-off-by: Mateusz Guzik <mguzik@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>