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| author | Christoph Hellwig <hch@lst.de> | 2026-07-13 11:33:43 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-08-24 18:43:15 -0700 |
| commit | 0df74c11587941b35596d1e8990dcab06bdbfeb5 (patch) | |
| tree | 6e12713bb36cccd60b11309969d387a2658227c8 /include | |
| parent | 563597895e65113b4dafea6cacd1df23b0cf6660 (diff) | |
| download | linux-0df74c11587941b35596d1e8990dcab06bdbfeb5.tar.gz linux-0df74c11587941b35596d1e8990dcab06bdbfeb5.zip | |
mm/swap: remove SWP_FS_OPS
Provide a swap_fs_activate helper that directly sets up swap_fs_ops, and a
flag in struct swap_ops to indicate of NOFS swapping is allowed.
Link: https://lore.kernel.org/20260713093350.2154226-7-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Barry Song <baohua@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Youngjun Park <youngjun.park@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/swap.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index 5979b1427368..8dd68733c955 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -202,7 +202,6 @@ enum { SWP_SOLIDSTATE = (1 << 4), /* blkdev seeks are cheap */ SWP_BLKDEV = (1 << 6), /* its a block device */ SWP_ACTIVATED = (1 << 7), /* set after swap_activate success */ - SWP_FS_OPS = (1 << 8), /* swapfile operations go through fs */ SWP_AREA_DISCARD = (1 << 9), /* single-time swap area discards */ SWP_PAGE_DISCARD = (1 << 10), /* freed swap page-cluster discards */ SWP_STABLE_WRITES = (1 << 11), /* no overwrite PG_writeback pages */ @@ -343,6 +342,7 @@ extern void __meminit kswapd_stop(int nid); #ifdef CONFIG_SWAP +int swap_fs_activate(struct swap_info_struct *sis); int add_swap_extent(struct swap_info_struct *sis, unsigned long start_page, unsigned long nr_pages, sector_t start_block); int generic_swapfile_activate(struct swap_info_struct *, struct file *, @@ -468,6 +468,10 @@ static inline bool folio_free_swap(struct folio *folio) return false; } +static inline int swap_fs_activate(struct swap_info_struct *sis) +{ + return -EINVAL; +} static inline int add_swap_extent(struct swap_info_struct *sis, unsigned long start_page, unsigned long nr_pages, sector_t start_block) |