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mm/swapfile.c: update the code comment above swap_count_continued()

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Now, swap_count_continued() has two callers, __swap_duplicate() and
__swap_entry_free_locked(), the relevant code comment is stale.  Update it
to reflect the current situation.

[bhe@redhat.com: v2]
  Link: https://lkml.kernel.org/r/Z6V0/UvG1fvkQ4t/@fedora
Link: https://lkml.kernel.org/r/20250205092721.9395-7-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>
This commit is contained in:
Baoquan He 2025-02-05 17:27:15 +08:00 committed by Andrew Morton
parent b4735d94c2
commit f80ddc148c
1 changed files with 2 additions and 2 deletions
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mm/swapfile.c
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@ -3797,8 +3797,8 @@ int add_swap_count_continuation(swp_entry_t entry, gfp_t gfp_mask)
* into, carry if so, or else fail until a new continuation page is allocated;
* when the original swap_map count is decremented from 0 with continuation,
* borrow from the continuation and report whether it still holds more.
* Called while __swap_duplicate() or swap_entry_free() holds swap or cluster
* lock.
* Called while __swap_duplicate() or caller of __swap_entry_free_locked()
* holds cluster lock.
*/
static bool swap_count_continued(struct swap_info_struct *si,
pgoff_t offset, unsigned char count)