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| author | Jens Axboe <axboe@kernel.dk> | 2021-01-27 20:04:49 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-01-27 20:04:49 +0300 |
| commit | 3e3126cf2a6d0afa4c013574df621d08f08d3912 (patch) | |
| tree | 566a779cfbd9bb7baec2f71645d1274ffab70580 | |
| parent | 48d15436fde6feebcded7bd0fdc8ea4a9181b8fa (diff) | |
| download | linux-3e3126cf2a6d0afa4c013574df621d08f08d3912.tar.xz | |
mm: only make map_swap_entry available for CONFIG_HIBERNATION
Current tree spews this on compile:
mm/swapfile.c:2290:17: warning: ‘map_swap_entry’ defined but not used [-Wunused-function]
2290 | static sector_t map_swap_entry(swp_entry_t entry, struct block_device **bdev)
| ^~~~~~~~~~~~~~
if !CONFIG_HIBERNATION, as we don't use the function unless we have that
config option set.
Fixes: 48d15436fde6 ("mm: remove get_swap_bio")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | mm/swapfile.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index bfa9e8b0c2ef..351999a84e6e 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -47,7 +47,6 @@ static bool swap_count_continued(struct swap_info_struct *, pgoff_t, unsigned char); static void free_swap_count_continuations(struct swap_info_struct *); -static sector_t map_swap_entry(swp_entry_t, struct block_device**); DEFINE_SPINLOCK(swap_lock); static unsigned int nr_swapfiles; @@ -1791,6 +1790,9 @@ int free_swap_and_cache(swp_entry_t entry) } #ifdef CONFIG_HIBERNATION + +static sector_t map_swap_entry(swp_entry_t, struct block_device**); + /* * Find the swap type that corresponds to given device (if any). * @@ -2281,6 +2283,7 @@ static void drain_mmlist(void) spin_unlock(&mmlist_lock); } +#ifdef CONFIG_HIBERNATION /* * Use this swapdev's extent info to locate the (PAGE_SIZE) block which * corresponds to page offset for the specified swap entry. @@ -2300,6 +2303,7 @@ static sector_t map_swap_entry(swp_entry_t entry, struct block_device **bdev) se = offset_to_swap_extent(sis, offset); return se->start_block + (offset - se->start_page); } +#endif /* * Free all of a swapdev's extent information |