diff options
| author | Baolin Wang <baolin.wang@linux.alibaba.com> | 2023-02-15 18:39:35 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-20 12:46:17 -0800 |
| commit | f7f9c00dfafffd7a5a1a5685e2d874c64913e2ed (patch) | |
| tree | c0a13cfa7a2606526ddce994d1ed3a1bf9d7989c /mm/folio-compat.c | |
| parent | be2d57563822b7e00b2b16d9354637c4b6d6d5cc (diff) | |
| download | linux-f7f9c00dfafffd7a5a1a5685e2d874c64913e2ed.tar.gz | |
mm: change to return bool for isolate_lru_page()
The isolate_lru_page() can only return 0 or -EBUSY, and most users did not
care about the negative error of isolate_lru_page(), except one user in
add_page_for_migration(). So we can convert the isolate_lru_page() to
return a boolean value, which can help to make the code more clear when
checking the return value of isolate_lru_page().
Also convert all users' logic of checking the isolation state.
No functional changes intended.
Link: https://lkml.kernel.org/r/3074c1ab628d9dbf139b33f248a8bc253a3f95f0.1676424378.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/folio-compat.c')
| -rw-r--r-- | mm/folio-compat.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/mm/folio-compat.c b/mm/folio-compat.c index 540373cf904e9..cabcd1de9ecbb 100644 --- a/mm/folio-compat.c +++ b/mm/folio-compat.c @@ -113,17 +113,11 @@ struct page *grab_cache_page_write_begin(struct address_space *mapping, } EXPORT_SYMBOL(grab_cache_page_write_begin); -int isolate_lru_page(struct page *page) +bool isolate_lru_page(struct page *page) { - bool ret; - if (WARN_RATELIMIT(PageTail(page), "trying to isolate tail page")) - return -EBUSY; - ret = folio_isolate_lru((struct folio *)page); - if (ret) - return 0; - - return -EBUSY; + return false; + return folio_isolate_lru((struct folio *)page); } void putback_lru_page(struct page *page) |