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Wed, 3 Jun 2026 13:20:07 +0000 (GMT) From: Jan Polensky To: linkinjeon@kernel.org Cc: djwong@kernel.org, hch@lst.de, japo@linux.ibm.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, regressions@lists.linux.dev, sj1557.seo@samsung.com, yuezhang.mo@sony.com Subject: [PATCH] exfat: add swap_activate support Date: Wed, 3 Jun 2026 15:19:50 +0200 Message-ID: <20260603131950.321858-1-japo@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Xtv1KypsmP7mjexfAoGwtjvBKPagL88B X-Authority-Analysis: v=2.4 cv=fv/sol4f c=1 sm=1 tr=0 ts=6a202a0a cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=mSQIsEC6K9nzt2GofAQA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjAzMDEyNSBTYWx0ZWRfXxS3og0eO5Qkh f1x5W9AMMgIiInvSBVOml4D24VK9Q+baKOGF4scIkkV1D17+2cBshFM6TVUBQcgzR9h9JRK29Km T22fVsdLXla7AtbDJteUzN/n/cJfImzVHH7izoO99AJF1wHOjHDkfRrP5nK2qsEqgrxS+O314vC f5ySJSghGR5zdzwQMpFkaB+VN8+kBTkTAfHZstDyProi5XMajCVv+AcB4foGu/PCOFjGjEiSFcn XwmQ4ln762kaLawLRmAkeJwI1cm8wNLgCp+RrIKCG60SxUgAKDI79c1lWEp2V+wbx+e6D57+asz q3dRXRLAmDytzhVE2M/ZNVxveso/6S3Ivt1awYCnL2Yp8ZAcd7LGfNehLV7qw4DIlj3UlAOVLNw g1DCeI6NgssgJe2Uk2mE3KWvnRNh21S6mlXnv2FLdnWx5iN5eFLGcTAL8zNGhkJ9sAnkkopUQ5D PUcapMgb7RYxVtrGVYQ== X-Proofpoint-ORIG-GUID: Xtv1KypsmP7mjexfAoGwtjvBKPagL88B X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-03_04,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 priorityscore=1501 spamscore=0 phishscore=0 clxscore=1015 impostorscore=0 suspectscore=0 bulkscore=0 lowpriorityscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606030125 Content-Type: text/plain; charset="utf-8" Commit 614f71ca1bdf ("exfat: add iomap buffered I/O support") converted exfat buffered I/O to iomap, but did not add a .swap_activate handler to the address_space_operations. swapon(2) on an exfat swapfile then fails with EINVAL, which causes LTP swap tests to fail. Add exfat_iomap_swap_activate() and hook it into exfat_aops so exfat uses iomap_swapfile_activate() for swapfile activation. Fixes: 614f71ca1bdf ("exfat: add iomap buffered I/O support") Closes: https://lore.kernel.org/all/20260603110212.3020276-1-japo@linux.ibm= .com/ Signed-off-by: Jan Polensky --- fs/exfat/inode.c | 1 + fs/exfat/iomap.c | 6 ++++++ fs/exfat/iomap.h | 3 +++ 3 files changed, 10 insertions(+) diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c index 96ea243c67db..3b3ac722cf07 100644 --- a/fs/exfat/inode.c +++ b/fs/exfat/inode.c @@ -496,6 +496,7 @@ static const struct address_space_operations exfat_aops= =3D { .release_folio =3D iomap_release_folio, .invalidate_folio =3D iomap_invalidate_folio, .direct_IO =3D exfat_direct_IO, + .swap_activate =3D exfat_iomap_swap_activate, }; static inline unsigned long exfat_hash(loff_t i_pos) diff --git a/fs/exfat/iomap.c b/fs/exfat/iomap.c index 188df8cfac9a..54c724cea1d0 100644 --- a/fs/exfat/iomap.c +++ b/fs/exfat/iomap.c @@ -213,3 +213,9 @@ const struct iomap_read_ops exfat_iomap_bio_read_ops = =3D { .read_folio_range =3D iomap_bio_read_folio_range, .submit_read =3D exfat_iomap_bio_submit_read, }; + +int exfat_iomap_swap_activate(struct swap_info_struct *sis, + struct file *file, sector_t *span) +{ + return iomap_swapfile_activate(sis, file, span, &exfat_iomap_ops); +} diff --git a/fs/exfat/iomap.h b/fs/exfat/iomap.h index 7f8dcbe20a17..295e36312baf 100644 --- a/fs/exfat/iomap.h +++ b/fs/exfat/iomap.h @@ -11,4 +11,7 @@ extern const struct iomap_ops exfat_write_iomap_ops; extern const struct iomap_writeback_ops exfat_writeback_ops; extern const struct iomap_read_ops exfat_iomap_bio_read_ops; +int exfat_iomap_swap_activate(struct swap_info_struct *sis, + struct file *file, sector_t *span); + #endif /* _LINUX_EXFAT_IOMAP_H */ -- 2.53.0