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bh=26b/hPpE6pPBDb6maG20tK7F0M3y9Q+7zU2d95GCn5Q=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=uc2t8RwYzPnM7uX5SBIGTb/cXG1/lnsJ9qTBLoSDnlgXgigmBsL5PgXlJr4YFnji6 wHmELa3uDw4AvwsYOFOjb4yyYSqZN7bgqHPvsE9TjLJk+3hoTBlmNDtitV+T/u3Npa OBSI8QY4+hspYtxeNiIE5QQSKWMw7HEDJ9Uy3MPBo9UghPbbLmmPsRQVZR1sRp1gE5 N8FRD2YJgZwJygUmU0QdbWREa9/8ZmJMJXbTRum87nXApP4btCUHUTPt8RIgE5Ma// TWG0WEV8sUqEsvVUwYXrm6gGy0m3wrYRLzzoXnDlSPLfUBAQfOYUdB3Mcmqd9Etdfc RTlgn1JqFw9tg== Message-ID: <14fd6b28596fb9137ef2d66910726951948c3c53.camel@kernel.org> Subject: Re: [PATCH] ceph: redirty page before returning AOP_WRITEPAGE_ACTIVATE From: Jeff Layton To: NeilBrown , Xiubo Li , Ilya Dryomov Cc: ceph-devel@vger.kernel.org, linux-kernel@vger.kernel.org Date: Sun, 24 Mar 2024 19:45:21 -0400 In-Reply-To: <171131888022.13576.8585118457506044105@noble.neil.brown.name> References: <171131888022.13576.8585118457506044105@noble.neil.brown.name> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; 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 kZWuOsJdJQdmwlWC5L5ln9xgfr/4mOY38B0U= Content-Type: text/plain; charset="ISO-8859-15" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.4 (3.50.4-1.fc39) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Mon, 2024-03-25 at 09:21 +1100, NeilBrown wrote: > The page has been marked clean before writepage is called. If we don't > redirty it before postponing the write, it might never get written. >=20 > Fixes: 503d4fa6ee28 ("ceph: remove reliance on bdi congestion") > Signed-off-by: NeilBrown > --- > fs/ceph/addr.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) >=20 > diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c > index 1340d77124ae..ee9caf7916fb 100644 > --- a/fs/ceph/addr.c > +++ b/fs/ceph/addr.c > @@ -795,8 +795,10 @@ static int ceph_writepage(struct page *page, struct = writeback_control *wbc) > ihold(inode); > =20 > if (wbc->sync_mode =3D=3D WB_SYNC_NONE && > - ceph_inode_to_fs_client(inode)->write_congested) > + ceph_inode_to_fs_client(inode)->write_congested) { > + redirty_page_for_writepage(wbc, page); > return AOP_WRITEPAGE_ACTIVATE; > + } > =20 > wait_on_page_fscache(page); > =20 Reviewed-by: Jeff Layton