diff options
| author | Matthew Wilcox <[email protected]> | 2018-04-10 16:36:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2018-04-11 10:28:39 -0700 |
| commit | b93b016313b3ba8003c3b8bb71f569af91f19fc7 (patch) | |
| tree | ad4be96414189dcdf8c972f351ba430996e9fdff /arch/nios2/include/asm/cacheflush.h | |
| parent | f6bb2a2c0b81c47282ddb7883f92e65a063c27dd (diff) | |
page cache: use xa_lock
Remove the address_space ->tree_lock and use the xa_lock newly added to
the radix_tree_root. Rename the address_space ->page_tree to ->i_pages,
since we don't really care that it's a tree.
[[email protected]: fix nds32, fs/dax.c]
Link: http://lkml.kernel.org/r/[email protected]: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Wilcox <[email protected]>
Acked-by: Jeff Layton <[email protected]>
Cc: Darrick J. Wong <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Ryusuke Konishi <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'arch/nios2/include/asm/cacheflush.h')
| -rw-r--r-- | arch/nios2/include/asm/cacheflush.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/nios2/include/asm/cacheflush.h b/arch/nios2/include/asm/cacheflush.h index 55e383c173f7..18eb9f69f806 100644 --- a/arch/nios2/include/asm/cacheflush.h +++ b/arch/nios2/include/asm/cacheflush.h @@ -46,9 +46,7 @@ extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page, extern void flush_dcache_range(unsigned long start, unsigned long end); extern void invalidate_dcache_range(unsigned long start, unsigned long end); -#define flush_dcache_mmap_lock(mapping) \ - spin_lock_irq(&(mapping)->tree_lock) -#define flush_dcache_mmap_unlock(mapping) \ - spin_unlock_irq(&(mapping)->tree_lock) +#define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) +#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) #endif /* _ASM_NIOS2_CACHEFLUSH_H */ |