Great work，it fix my problem.
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There is a potential deadlock between writeback process and a process
performing write_begin() or write_cache_pages() while trying to write
same compress file, but not compressable, as below:
[Process A] - doing checkpoint
[Process B] [Process C]
f2fs_write_cache_pages()
- lock
On Fri, 2021-12-10 at 11:08 +0800, Fengnan Chang wrote:
> Hi chao:
>
> As I mentioned before,
> https://lore.kernel.org/linux-f2fs-devel/kl1pr0601mb400309c5d62bfddde6aad8aebb...@kl1pr0601mb4003.apcprd06.prod.outlook.com/T/#mbe9a8f27626ac7ca71035e25f5502e756ab877ac
>
> there is a potential dead
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Hi chao:
As I mentioned before,
https://lore.kernel.org/linux-f2fs-devel/kl1pr0601mb400309c5d62bfddde6aad8aebb...@kl1pr0601mb4003.apcprd06.prod.outlook.com/T/#mbe9a8f27626ac7ca71035e25f5502e756ab877ac
there is a potential dead lock problem when just remove
compress file condition in __should_seria
Android OTA failed due to SBI_NEED_FSCK flag when pinning the file. Let's avoid
it since we can do in-place-updates.
Signed-off-by: Jaegeuk Kim
Change-Id: I3fd33c984417c10b38e23de6cec017b03d588945
---
fs/f2fs/data.c | 7 +--
fs/f2fs/file.c | 10 +-
2 files changed, 10 insertions(+),
Hello Daeho Jeong,
The patch 38f953da2e35: "f2fs: add gc_urgent_high_remaining sysfs
node" from Dec 7, 2021, leads to the following Smatch static checker
warning:
fs/f2fs/sysfs.c:490 __sbi_store()
warn: unsigned 't' is never less than zero.
fs/f2fs/sysfs.c
332 static ssize_t
> You can get the block list from f2fs superblock in the first 4KB.
So userspace stuff like udev can read that to figure out which devices
are in use?
Does this require a change in the kernel too, to show that these drives
are busy or in-use somehow?
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