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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2019-09-23 15:34:30 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-24 15:54:08 -0700 |
| commit | d8c6546b1aea843fbeb4d54a1202f1adda6504be (patch) | |
| tree | 4b0fcc4a1afc9342472d59293b50fce20f2d70e7 /mm/gup.c | |
| parent | mm: introduce page_shift() (diff) | |
| download | linux-dev-d8c6546b1aea843fbeb4d54a1202f1adda6504be.tar.xz linux-dev-d8c6546b1aea843fbeb4d54a1202f1adda6504be.zip | |
mm: introduce compound_nr()
Replace 1 << compound_order(page) with compound_nr(page). Minor
improvements in readability.
Link: http://lkml.kernel.org/r/20190721104612.19120-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/gup.c')
| -rw-r--r-- | mm/gup.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -1460,7 +1460,7 @@ check_again: * gup may start from a tail page. Advance step by the left * part. */ - step = (1 << compound_order(head)) - (pages[i] - head); + step = compound_nr(head) - (pages[i] - head); /* * If we get a page from the CMA zone, since we are going to * be pinning these entries, we might as well move them out |