* [f2fs-dev] [PATCH AUTOSEL 4.14 083/127] f2fs: fix to dirty inode synchronously
[not found] <20191122055544.3299-1-sashal@kernel.org>
@ 2019-11-22 5:55 ` Sasha Levin
2019-11-22 5:55 ` [f2fs-dev] [PATCH AUTOSEL 4.14 125/127] f2fs: fix to data block override node segment by mistake Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2019-11-22 5:55 UTC (permalink / raw)
To: linux-kernel, stable; +Cc: Sasha Levin, Jaegeuk Kim, linux-f2fs-devel
From: Chao Yu <yuchao0@huawei.com>
[ Upstream commit b32e019049e959ee10ec359893c9dd5d057dad55 ]
If user change inode's i_flags via ioctl, let's add it into global
dirty list, so that checkpoint can guarantee its persistence before
fsync, it can make checkpoint keeping strong consistency.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/f2fs/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1b17921994459..d68b0132718a6 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1593,7 +1593,7 @@ static int __f2fs_ioc_setflags(struct inode *inode, unsigned int flags)
inode->i_ctime = current_time(inode);
f2fs_set_inode_flags(inode);
- f2fs_mark_inode_dirty_sync(inode, false);
+ f2fs_mark_inode_dirty_sync(inode, true);
return 0;
}
--
2.20.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread* [f2fs-dev] [PATCH AUTOSEL 4.14 125/127] f2fs: fix to data block override node segment by mistake
[not found] <20191122055544.3299-1-sashal@kernel.org>
2019-11-22 5:55 ` [f2fs-dev] [PATCH AUTOSEL 4.14 083/127] f2fs: fix to dirty inode synchronously Sasha Levin
@ 2019-11-22 5:55 ` Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2019-11-22 5:55 UTC (permalink / raw)
To: linux-kernel, stable; +Cc: Sasha Levin, Jaegeuk Kim, linux-f2fs-devel
From: zhengliang <zhengliang6@huawei.com>
[ Upstream commit a0770e13c8da83bdb64738c0209ab02dd3cfff8b ]
v4: Rearrange the previous three versions.
The following scenario could lead to data block override by mistake.
TASK A | TASK kworker | TASK B | TASK C
| | |
open | | |
write | | |
close | | |
| f2fs_write_data_pages | |
| f2fs_write_cache_pages | |
| f2fs_outplace_write_data | |
| f2fs_allocate_data_block (get block in seg S, | |
| S is full, and only | |
| have this valid data | |
| block) | |
| allocate_segment | |
| locate_dirty_segment (mark S as PRE) | |
| f2fs_submit_page_write (submit but is not | |
| written on dev) | |
unlink | | |
iput_final | | |
f2fs_drop_inode | | |
f2fs_truncate | | |
(not evict) | | |
| | write_checkpoint |
| | flush merged bio but not wait file data writeback |
| | set_prefree_as_free (mark S as FREE) |
| | | update NODE/DATA
| | | allocate_segment (select S)
| writeback done | |
So we need to guarantee io complete before truncate inode in f2fs_drop_inode.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Zheng Liang <zhengliang6@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/f2fs/super.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 0f3209b23c940..331f16a7c676f 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -668,6 +668,10 @@ static int f2fs_drop_inode(struct inode *inode)
sb_start_intwrite(inode->i_sb);
f2fs_i_size_write(inode, 0);
+ f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
+ inode, NULL, 0, DATA);
+ truncate_inode_pages_final(inode->i_mapping);
+
if (F2FS_HAS_BLOCKS(inode))
f2fs_truncate(inode);
--
2.20.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread