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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-16 18:42:37 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-16 18:42:37 (GMT) |
| commit | 3d875182d7f4b27b7778c3ab6a39800d383968cb (patch) | |
| tree | 588a0f89219f4252d93a102b49f661b1bf435a84 /mm/memory.c | |
| parent | 69984b64440729bf6b08d1ddc1b3ee8282a2c846 (diff) | |
| parent | 934ed25ea505859cec5236dcb1769be5f998dd25 (diff) | |
| download | linux-3d875182d7f4b27b7778c3ab6a39800d383968cb.tar.xz | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"6 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
sh: add copy_user_page() alias for __copy_user()
lib/Kconfig: ZLIB_DEFLATE must select BITREVERSE
mm, dax: fix DAX deadlocks
memcg: convert threshold to bytes
builddeb: remove debian/files before build
mm, fs: obey gfp_mapping for add_to_page_cache()
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c index 9cb2747..deb679c 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2426,6 +2426,8 @@ void unmap_mapping_range(struct address_space *mapping, if (details.last_index < details.first_index) details.last_index = ULONG_MAX; + + /* DAX uses i_mmap_lock to serialise file truncate vs page fault */ i_mmap_lock_write(mapping); if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap))) unmap_mapping_range_tree(&mapping->i_mmap, &details); |