On Wed, Jul 16, 2025 at 8:28 AM Gao Xiang wrote:
>
>
>
> On 2025/7/16 07:32, Gao Xiang wrote:
> > Hi Matthew,
> >
> > On 2025/7/16 04:40, Matthew Wilcox wrote:
> >> I've started looking at how the page cache can help filesystems handle
> >> compressed data better. Feedback would be appreciated!
Commit 0638a3197c19 ("f2fs: avoid unused block when dio write in LFS
mode") has fixed unused block issue for dio write in lfs mode.
However, f2fs_map_blocks() may break and return smaller extent when
last allocated block locates in the end of section, even allocator
can allocate contiguous blocks
pinfile is excluded as it operates with direct I/O
Signed-off-by: yohan.joung
---
fs/f2fs/file.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 4039ccb5022c..cac8c9650a7a 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4844,7 +484
Hi Barry,
On 2025/7/21 09:02, Barry Song wrote:
On Wed, Jul 16, 2025 at 8:28 AM Gao Xiang wrote:
...
... high-order folios can cause side effects on embedded devices
like routers and IoT devices, which still have MiBs of memory (and I
believe this won't change due to their use cases) but
https://bugzilla.kernel.org/show_bug.cgi?id=220321
--- Comment #5 from SEO HOYOUNG (hy50@samsung.com) ---
Hi, I uploaded to mainline fix patch.
But I do not know it is right.
https://lore.kernel.org/linux-scsi/20250721064024.113841-1-hy50@samsung.com/T/#u
I thought of another way, how ab
On Wed, Jul 16, 2025 at 7:32 AM Gao Xiang wrote:
[...]
>
> I don't see this will work for EROFS because EROFS always supports
> variable uncompressed extent lengths and that will break typical
> EROFS use cases and on-disk formats.
>
> Other thing is that large order folios (physical consecutive)
