diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2021-05-08 21:12:55 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-05-08 21:12:55 +1000 |
| commit | f96271cefe6dfd1cb04195b76f4a33e185cd7f92 (patch) | |
| tree | f290b3e7aa9c12fdc4853ce97c150c4f9abd90a3 /mm/truncate.c | |
| parent | 32b48bf8514c28cdc89cd8069eceeb6e6cff0612 (diff) | |
| parent | dd860052c99b1e088352bdd4fb7aef46f8d2ef47 (diff) | |
Merge branch 'master' into next
Merge master back into next, this allows us to resolve some conflicts in
arch/powerpc/Kconfig, and also re-sort the symbols under config PPC so
that they are in alphabetical order again.
Diffstat (limited to 'mm/truncate.c')
| -rw-r--r-- | mm/truncate.c | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/mm/truncate.c b/mm/truncate.c index 455944264663..95af244b112a 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -40,7 +40,6 @@ static inline void __clear_shadow_entry(struct address_space *mapping, if (xas_load(&xas) != entry) return; xas_store(&xas, NULL); - mapping->nrexceptional--; } static void clear_shadow_entry(struct address_space *mapping, pgoff_t index, @@ -295,7 +294,7 @@ void truncate_inode_pages_range(struct address_space *mapping, pgoff_t index; int i; - if (mapping->nrpages == 0 && mapping->nrexceptional == 0) + if (mapping_empty(mapping)) goto out; /* Offsets within partial pages */ @@ -440,9 +439,6 @@ EXPORT_SYMBOL(truncate_inode_pages); */ void truncate_inode_pages_final(struct address_space *mapping) { - unsigned long nrexceptional; - unsigned long nrpages; - /* * Page reclaim can not participate in regular inode lifetime * management (can't call iput()) and thus can race with the @@ -452,16 +448,7 @@ void truncate_inode_pages_final(struct address_space *mapping) */ mapping_set_exiting(mapping); - /* - * When reclaim installs eviction entries, it increases - * nrexceptional first, then decreases nrpages. Make sure we see - * this in the right order or we might miss an entry. - */ - nrpages = mapping->nrpages; - smp_rmb(); - nrexceptional = mapping->nrexceptional; - - if (nrpages || nrexceptional) { + if (!mapping_empty(mapping)) { /* * As truncation uses a lockless tree lookup, cycle * the tree lock to make sure any ongoing tree @@ -633,7 +620,7 @@ int invalidate_inode_pages2_range(struct address_space *mapping, int ret2 = 0; int did_range_unmap = 0; - if (mapping->nrpages == 0 && mapping->nrexceptional == 0) + if (mapping_empty(mapping)) goto out; pagevec_init(&pvec); |