| swap_state.c (46a774d3eae523fd9a1907ba90e9a116cd1c5ddc) | swap_state.c (3ecdeb0f876e91c4a7129ba2ba5baa530aa6c4f9) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * linux/mm/swap_state.c 4 * 5 * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds 6 * Swap reorganised 29.12.95, Stephen Tweedie 7 * 8 * Rewritten to use page cache, (C) 1998 Stephen Tweedie --- 433 unchanged lines hidden (view full) --- 442 /* 443 * Just skip read ahead for unused swap slot. 444 * During swap_off when swap_slot_cache is disabled, 445 * we have to handle the race between putting 446 * swap entry in swap cache and marking swap slot 447 * as SWAP_HAS_CACHE. That's done in later part of code or 448 * else swap_off will be aborted if we return NULL. 449 */ | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * linux/mm/swap_state.c 4 * 5 * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds 6 * Swap reorganised 29.12.95, Stephen Tweedie 7 * 8 * Rewritten to use page cache, (C) 1998 Stephen Tweedie --- 433 unchanged lines hidden (view full) --- 442 /* 443 * Just skip read ahead for unused swap slot. 444 * During swap_off when swap_slot_cache is disabled, 445 * we have to handle the race between putting 446 * swap entry in swap cache and marking swap slot 447 * as SWAP_HAS_CACHE. That's done in later part of code or 448 * else swap_off will be aborted if we return NULL. 449 */ |
| 450 if (!__swp_swapcount(entry) && swap_slot_cache_enabled) | 450 if (!swap_swapcount(si, entry) && swap_slot_cache_enabled) |
| 451 goto fail_put_swap; 452 453 /* 454 * Get a new page to read into from swap. Allocate it now, 455 * before marking swap_map SWAP_HAS_CACHE, when -EEXIST will 456 * cause any racers to loop around until we add it to cache. 457 */ 458 folio = vma_alloc_folio(gfp_mask, 0, vma, addr, false); --- 456 unchanged lines hidden --- | 451 goto fail_put_swap; 452 453 /* 454 * Get a new page to read into from swap. Allocate it now, 455 * before marking swap_map SWAP_HAS_CACHE, when -EEXIST will 456 * cause any racers to loop around until we add it to cache. 457 */ 458 folio = vma_alloc_folio(gfp_mask, 0, vma, addr, false); --- 456 unchanged lines hidden --- |