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mm/swapfile.c: simplify the calculation of n_goal 

Use min3() to simplify the comparison and make it more self-explaining.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Hugh Dickins <hughd@google.com>
Link: http://lkml.kernel.org/r/20200325220309.9803-1-richard.weiyang@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Wei Yang 2020-06-01 21:48:55 -07:00 committed by Linus Torvalds
parent bd2d18da4a
commit 08d3090fc8
1 changed files with 1 additions and 5 deletions
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6
mm/swapfile.c
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@ -994,11 +994,7 @@ int get_swap_pages(int n_goal, swp_entry_t swp_entries[], int entry_size)
if (avail_pgs <= 0)
goto noswap;
if (n_goal > SWAP_BATCH)
n_goal = SWAP_BATCH;
if (n_goal > avail_pgs)
n_goal = avail_pgs;
n_goal = min3((long)n_goal, (long)SWAP_BATCH, avail_pgs);
atomic_long_sub(n_goal * size, &nr_swap_pages);