Gao Xiang b3b87525b5 erofs: apply proper VMA alignment for memory mapped files on THP
[ Upstream commit 4127caee89612a84adedd78c9453089138cd5afe ]

There are mainly two reasons that thp_get_unmapped_area() should be
used for EROFS as other filesystems:

 - It's needed to enable PMD mappings as a FSDAX filesystem, see
   commit 74d2fad1334d ("thp, dax: add thp_get_unmapped_area for pmd
   mappings");

 - It's useful together with large folios and
   CONFIG_READ_ONLY_THP_FOR_FS which enable THPs for mmapped files
   (e.g. shared libraries) even without FSDAX.  See commit 1854bc6e2420
   ("mm/readahead: Align file mappings for non-DAX").

Fixes: 06252e9ce05b ("erofs: dax support for non-tailpacking regular file")
Fixes: ce529cc25b18 ("erofs: enable large folios for iomap mode")
Fixes: e6687b89225e ("erofs: enable large folios for fscache mode")
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240306053138.2240206-1-hsiangkao@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-15 10:48:19 -04:00
..
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-28 11:39:14 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-28 09:31:32 -07:00
2023-08-28 11:04:18 -07:00
2023-08-28 10:17:14 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2024-02-05 20:14:32 +00:00
2023-08-29 17:45:22 -04:00
2023-08-29 20:21:42 -07:00
2023-08-31 12:07:34 -05:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-06-15 13:37:53 +02:00
2023-08-29 20:21:42 -07:00
\n
2023-08-30 12:10:50 -07:00
2023-08-29 20:21:42 -07:00
2023-08-28 09:31:32 -07:00
2024-02-23 09:25:13 +01:00
2023-08-28 10:17:14 -07:00
2023-06-28 20:35:21 -07:00
2023-06-26 09:50:21 -07:00
2023-07-26 14:56:07 +02:00
2023-08-08 19:36:51 +02:00
2023-08-28 10:17:14 -07:00
2023-08-21 13:46:25 -07:00
2023-08-14 18:48:02 +02:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-19 12:12:12 +02:00
2023-08-31 15:32:18 -07:00
2023-08-02 09:13:09 -06:00
2023-07-13 10:28:04 +02:00
2023-08-15 08:32:45 +02:00
2023-08-31 12:47:15 +02:00