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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-05-04 18:32:48 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 11:27:19 -0700 |
| commit | 46be67b424efab933562a29ea8f1df0c20aa9959 (patch) | |
| tree | 713adb555aa4835131938869e7fcc77d206cd132 /mm/truncate.c | |
| parent | mm: introduce and use mapping_empty() (diff) | |
| download | linux-dev-46be67b424efab933562a29ea8f1df0c20aa9959.tar.xz linux-dev-46be67b424efab933562a29ea8f1df0c20aa9959.zip | |
mm: stop accounting shadow entries
We no longer need to keep track of how many shadow entries are present in
a mapping. This saves a few writes to the inode and memory barriers.
Link: https://lkml.kernel.org/r/20201026151849.24232-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Vishal Verma <vishal.l.verma@intel.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/truncate.c')
| -rw-r--r-- | mm/truncate.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/truncate.c b/mm/truncate.c index adb8d4107988..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, |