On 5/21/20 7:25 PM, Andrew Morton wrote: > On Thu, 21 May 2020 00:50:56 -0700 Michel Lespinasse <wal...@google.com> > wrote: > >> > > * Must be called holding task's alloc_lock to protect task's >> > > mems_allowed >> > > - * and mempolicy. May also be called holding the mmap_semaphore for >> > > write. >> > > + * and mempolicy. May also be called holding the mmap_lockaphore for >> > > write. >> > > */ >> > > static int mpol_set_nodemask(struct mempolicy *pol, >> > > const nodemask_t *nodes, struct nodemask_scratch *nsc) >> > >> > :) >> >> Haha, good catch ! > > aww, you're all so cruel. The world would be a better place if Linux > had lockaphores!
Heh, in fact it does have them, but they are called "btrfs extent buffer locks", see (or perhaps rather not) fs/btrfs/locking.c :)
