Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
mm/swap: remove SWAP_FLAG_PRIO_SHIFT
It doesn't make sense to have a zero value of shift. Remove it to avoid
confusion.
Link: https://lkml.kernel.org/r/20250205092721.9395-4-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: Kairui Song <ryncsn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
authored by
Baoquan He
and committed by
Andrew Morton
0eb7d2c3
cd57a3fb
+1
-3
-1
include/linux/swap.h
-1
include/linux/swap.h
···
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#define SWAP_FLAG_PREFER 0x8000 /* set if swap priority specified */
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#define SWAP_FLAG_PRIO_MASK 0x7fff
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-
#define SWAP_FLAG_PRIO_SHIFT 0
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#define SWAP_FLAG_DISCARD 0x10000 /* enable discard for swap */
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#define SWAP_FLAG_DISCARD_ONCE 0x20000 /* discard swap area at swapon-time */
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#define SWAP_FLAG_DISCARD_PAGES 0x40000 /* discard page-clusters after use */
+1
-2
mm/swapfile.c
+1
-2
mm/swapfile.c
···
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mutex_lock(&swapon_mutex);
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prio = -1;
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if (swap_flags & SWAP_FLAG_PREFER)
3456
-
prio =
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-
(swap_flags & SWAP_FLAG_PRIO_MASK) >> SWAP_FLAG_PRIO_SHIFT;
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+
prio = swap_flags & SWAP_FLAG_PRIO_MASK;
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enable_swap_info(si, prio, swap_map, cluster_info, zeromap);
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pr_info("Adding %uk swap on %s. Priority:%d extents:%d across:%lluk %s%s%s%s\n",