+++ /dev/null
-From e3b49ea36802053f312013fd4ccb6e59920a9f76 Mon Sep 17 00:00:00 2001
-From: Hyeong-Jun Kim <hj514.kim@samsung.com>
-Date: Tue, 2 Nov 2021 16:10:02 +0900
-Subject: f2fs: invalidate META_MAPPING before IPU/DIO write
-
-From: Hyeong-Jun Kim <hj514.kim@samsung.com>
-
-commit e3b49ea36802053f312013fd4ccb6e59920a9f76 upstream.
-
-Encrypted pages during GC are read and cached in META_MAPPING.
-However, due to cached pages in META_MAPPING, there is an issue where
-newly written pages are lost by IPU or DIO writes.
-
-Thread A - f2fs_gc() Thread B
-/* phase 3 */
-down_write(i_gc_rwsem)
-ra_data_block() ---- (a)
-up_write(i_gc_rwsem)
- f2fs_direct_IO() :
- - down_read(i_gc_rwsem)
- - __blockdev_direct_io()
- - get_data_block_dio_write()
- - f2fs_dio_submit_bio() ---- (b)
- - up_read(i_gc_rwsem)
-/* phase 4 */
-down_write(i_gc_rwsem)
-move_data_block() ---- (c)
-up_write(i_gc_rwsem)
-
-(a) In phase 3 of f2fs_gc(), up-to-date page is read from storage and
- cached in META_MAPPING.
-(b) In thread B, writing new data by IPU or DIO write on same blkaddr as
- read in (a). cached page in META_MAPPING become out-dated.
-(c) In phase 4 of f2fs_gc(), out-dated page in META_MAPPING is copied to
- new blkaddr. In conclusion, the newly written data in (b) is lost.
-
-To address this issue, invalidating pages in META_MAPPING before IPU or
-DIO write.
-
-Fixes: 6aa58d8ad20a ("f2fs: readahead encrypted block during GC")
-Signed-off-by: Hyeong-Jun Kim <hj514.kim@samsung.com>
-Reviewed-by: Chao Yu <chao@kernel.org>
-Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>a
-Signed-off-by: Chao Yu <chao@kernel.org>
-Signed-off-by: lvgaofei <lvgaofei@oppo.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- fs/f2fs/data.c | 2 ++
- fs/f2fs/segment.c | 3 +++
- 2 files changed, 5 insertions(+)
-
---- a/fs/f2fs/data.c
-+++ b/fs/f2fs/data.c
-@@ -1716,6 +1716,8 @@ sync_out:
- if (flag == F2FS_GET_BLOCK_DIO && map->m_flags & F2FS_MAP_MAPPED)
- f2fs_wait_on_block_writeback_range(inode,
- map->m_pblk, map->m_len);
-+ invalidate_mapping_pages(META_MAPPING(sbi),
-+ map->m_pblk, map->m_pblk);
-
- if (flag == F2FS_GET_BLOCK_PRECACHE) {
- if (map->m_flags & F2FS_MAP_MAPPED) {
---- a/fs/f2fs/segment.c
-+++ b/fs/f2fs/segment.c
-@@ -3547,6 +3547,9 @@ int f2fs_inplace_write_data(struct f2fs_
- return -EFSCORRUPTED;
- }
-
-+ invalidate_mapping_pages(META_MAPPING(sbi),
-+ fio->new_blkaddr, fio->new_blkaddr);
-+
- stat_inc_inplace_blocks(fio->sbi);
-
- if (fio->bio && !(SM_I(sbi)->ipu_policy & (1 << F2FS_IPU_NOCACHE)))
nilfs2-fix-use-after-free-bug-of-struct-nilfs_root.patch
nilfs2-fix-leak-of-nilfs_root-in-case-of-writer-thread-creation-failure.patch
nilfs2-replace-warn_ons-by-nilfs_error-for-checkpoint-acquisition-failure.patch
-f2fs-invalidate-meta_mapping-before-ipu-dio-write.patch
ceph-don-t-truncate-file-in-atomic_open.patch
makefile.extrawarn-move-wcast-function-type-strict-to-w-1.patch
docs-update-mediator-information-in-coc-docs.patch
+++ /dev/null
-From e3b49ea36802053f312013fd4ccb6e59920a9f76 Mon Sep 17 00:00:00 2001
-From: Hyeong-Jun Kim <hj514.kim@samsung.com>
-Date: Tue, 2 Nov 2021 16:10:02 +0900
-Subject: f2fs: invalidate META_MAPPING before IPU/DIO write
-
-From: Hyeong-Jun Kim <hj514.kim@samsung.com>
-
-commit e3b49ea36802053f312013fd4ccb6e59920a9f76 upstream.
-
-Encrypted pages during GC are read and cached in META_MAPPING.
-However, due to cached pages in META_MAPPING, there is an issue where
-newly written pages are lost by IPU or DIO writes.
-
-Thread A - f2fs_gc() Thread B
-/* phase 3 */
-down_write(i_gc_rwsem)
-ra_data_block() ---- (a)
-up_write(i_gc_rwsem)
- f2fs_direct_IO() :
- - down_read(i_gc_rwsem)
- - __blockdev_direct_io()
- - get_data_block_dio_write()
- - f2fs_dio_submit_bio() ---- (b)
- - up_read(i_gc_rwsem)
-/* phase 4 */
-down_write(i_gc_rwsem)
-move_data_block() ---- (c)
-up_write(i_gc_rwsem)
-
-(a) In phase 3 of f2fs_gc(), up-to-date page is read from storage and
- cached in META_MAPPING.
-(b) In thread B, writing new data by IPU or DIO write on same blkaddr as
- read in (a). cached page in META_MAPPING become out-dated.
-(c) In phase 4 of f2fs_gc(), out-dated page in META_MAPPING is copied to
- new blkaddr. In conclusion, the newly written data in (b) is lost.
-
-To address this issue, invalidating pages in META_MAPPING before IPU or
-DIO write.
-
-Fixes: 6aa58d8ad20a ("f2fs: readahead encrypted block during GC")
-Signed-off-by: Hyeong-Jun Kim <hj514.kim@samsung.com>
-Reviewed-by: Chao Yu <chao@kernel.org>
-Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>a
-Signed-off-by: Chao Yu <chao@kernel.org>
-Signed-off-by: lvgaofei <lvgaofei@oppo.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- fs/f2fs/data.c | 2 ++
- fs/f2fs/segment.c | 3 +++
- 2 files changed, 5 insertions(+)
-
---- a/fs/f2fs/data.c
-+++ b/fs/f2fs/data.c
-@@ -1677,6 +1677,8 @@ sync_out:
- if (flag == F2FS_GET_BLOCK_DIO && map->m_flags & F2FS_MAP_MAPPED)
- f2fs_wait_on_block_writeback_range(inode,
- map->m_pblk, map->m_len);
-+ invalidate_mapping_pages(META_MAPPING(sbi),
-+ map->m_pblk, map->m_pblk);
-
- if (flag == F2FS_GET_BLOCK_PRECACHE) {
- if (map->m_flags & F2FS_MAP_MAPPED) {
---- a/fs/f2fs/segment.c
-+++ b/fs/f2fs/segment.c
-@@ -3614,6 +3614,9 @@ int f2fs_inplace_write_data(struct f2fs_
- goto drop_bio;
- }
-
-+ invalidate_mapping_pages(META_MAPPING(sbi),
-+ fio->new_blkaddr, fio->new_blkaddr);
-+
- stat_inc_inplace_blocks(fio->sbi);
-
- if (fio->bio && !(SM_I(sbi)->ipu_policy & (1 << F2FS_IPU_NOCACHE)))
nilfs2-fix-use-after-free-bug-of-struct-nilfs_root.patch
nilfs2-fix-leak-of-nilfs_root-in-case-of-writer-thread-creation-failure.patch
nilfs2-replace-warn_ons-by-nilfs_error-for-checkpoint-acquisition-failure.patch
-f2fs-invalidate-meta_mapping-before-ipu-dio-write.patch
ceph-don-t-truncate-file-in-atomic_open.patch