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| author | Takashi Iwai <tiwai@suse.de> | 2024-05-08 18:16:58 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-05-08 18:16:58 +0200 |
| commit | 9b61b2069681b60d0d0bedbd0fe3c70123dddb19 (patch) | |
| tree | 483407944dd3037584b8825e0d33feb7f4eddf5f /mm/filemap.c | |
| parent | b9112b17950c955071abfd4331d4daa162d6ec4d (diff) | |
| parent | 2ff85dc64df5bc0ff12e2f4e23fae7bbadbf1d5d (diff) | |
| download | linux-stable-9b61b2069681b60d0d0bedbd0fe3c70123dddb19.tar.gz linux-stable-9b61b2069681b60d0d0bedbd0fe3c70123dddb19.tar.bz2 linux-stable-9b61b2069681b60d0d0bedbd0fe3c70123dddb19.zip | |
Merge branch 'topic/hda-config-pm-cleanup' into for-next
Pull HD-audio CONFIG_PM cleanup.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 7437b2bd75c1..30de18c4fd28 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -4197,7 +4197,23 @@ static void filemap_cachestat(struct address_space *mapping, /* shmem file - in swap cache */ swp_entry_t swp = radix_to_swp_entry(folio); + /* swapin error results in poisoned entry */ + if (non_swap_entry(swp)) + goto resched; + + /* + * Getting a swap entry from the shmem + * inode means we beat + * shmem_unuse(). rcu_read_lock() + * ensures swapoff waits for us before + * freeing the swapper space. However, + * we can race with swapping and + * invalidation, so there might not be + * a shadow in the swapcache (yet). + */ shadow = get_shadow_from_swap_cache(swp); + if (!shadow) + goto resched; } #endif if (workingset_test_recent(shadow, true, &workingset)) |