2024-02-27 23:16:50

by NeilBrown

Subject: [PATCH] NFS: remove sync_mode test from nfs_writepage_locked()

nfs_writepage_locked() is only called from nfs_wb_folio() (since Commit
12fc0a963128 ("nfs: Remove writepage")) so ->sync_mode is always
WB_SYNC_ALL.

This means the test for WB_SYNC_NONE is dead code and can be removed.

Signed-off-by: NeilBrown <[email protected]>
---
fs/nfs/write.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index bb79d3a886ae..58adbb7709ba 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -667,10 +667,6 @@ static int nfs_writepage_locked(struct folio *folio,
struct inode *inode = folio_file_mapping(folio)->host;
int err;

- if (wbc->sync_mode == WB_SYNC_NONE &&
- NFS_SERVER(inode)->write_congested)
- return AOP_WRITEPAGE_ACTIVATE;
-
nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE);
nfs_pageio_init_write(&pgio, inode, 0, false,
&nfs_async_write_completion_ops);
--
2.43.0

2024-03-07 12:29:57

by Jeffrey Layton

Subject: Re: [PATCH] NFS: remove sync_mode test from nfs_writepage_locked()

On Wed, 2024-02-28 at 10:05 +1100, NeilBrown wrote:
> nfs_writepage_locked() is only called from nfs_wb_folio() (since Commit
> 12fc0a963128 ("nfs: Remove writepage")) so ->sync_mode is always
> WB_SYNC_ALL.
>
> This means the test for WB_SYNC_NONE is dead code and can be removed.
>
> Signed-off-by: NeilBrown <[email protected]>
> ---
> fs/nfs/write.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/fs/nfs/write.c b/fs/nfs/write.c
> index bb79d3a886ae..58adbb7709ba 100644
> --- a/fs/nfs/write.c
> +++ b/fs/nfs/write.c
> @@ -667,10 +667,6 @@ static int nfs_writepage_locked(struct folio *folio,
> struct inode *inode = folio_file_mapping(folio)->host;
> int err;
>
> - if (wbc->sync_mode == WB_SYNC_NONE &&
> - NFS_SERVER(inode)->write_congested)
> - return AOP_WRITEPAGE_ACTIVATE;
> -
> nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE);
> nfs_pageio_init_write(&pgio, inode, 0, false,
> &nfs_async_write_completion_ops);

Reviewed-by: Jeff Layton <[email protected]>