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linux/fs/ceph
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Hristo Venev 081a0b78ef ceph: do not skip the first folio of the next object in writeback 
When `ceph_process_folio_batch` encounters a folio past the end of the
current object, it should leave it in the batch so that it is picked up
in the next iteration.

Removing the folio from the batch means that it does not get written
back and remains dirty instead. This makes `fsync()` silently skip some
of the data, delays capability release, and breaks coherence with
`O_DIRECT`.

The link below contains instructions for reproducing the bug.

Cc: stable@vger.kernel.org
Fixes: ce80b76dd3 ("ceph: introduce ceph_process_folio_batch() method")
Link: https://tracker.ceph.com/issues/75156
Signed-off-by: Hristo Venev <hristo@venev.name>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 		2026-03-09 12:34:40 +01:00
..
Kconfig ceph: stop selecting CRC32, CRYPTO, and CRYPTO_AES 2025-12-10 11:50:54 +01:00
Makefile ceph: fscrypt_auth handling for ceph 2023-08-22 09:01:48 +02:00
acl.c posix_acl: make posix_acl_to_xattr() alloc the buffer 2026-01-16 10:51:12 +01:00
addr.c ceph: do not skip the first folio of the next object in writeback 2026-03-09 12:34:40 +01:00
cache.c ceph: use the new ->i_state accessors 2025-10-20 20:22:27 +02:00
cache.h netfs: Provide invalidate_folio and release_folio calls 2023-12-24 15:08:51 +00:00
caps.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
ceph_frag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crypto.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
crypto.h ceph: replace local base64 helpers with lib/base64 2025-11-20 14:03:44 -08:00
debugfs.c ceph: add a bunch of missing ceph_path_info initializers 2026-03-09 12:34:40 +01:00
dir.c ceph: add a bunch of missing ceph_path_info initializers 2026-03-09 12:34:40 +01:00
export.c ceph: cleanup hardcoded constants of file handle size 2025-06-01 17:53:16 +02:00
file.c ceph: add a bunch of missing ceph_path_info initializers 2026-03-09 12:34:40 +01:00
inode.c ceph: add a bunch of missing ceph_path_info initializers 2026-03-09 12:34:40 +01:00
io.c ceph: fix potential race condition on operations with CEPH_I_ODIRECT flag 2025-10-08 23:30:46 +02:00
io.h ceph: make ceph_start_io_*() killable 2025-10-08 23:30:46 +02:00
ioctl.c ceph: fix potential race condition in ceph_ioctl_lazyio() 2025-10-08 23:30:46 +02:00
ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
locks.c ceph: add checking of wait_for_completion_killable() return value 2025-10-08 23:30:46 +02:00
mds_client.c ceph: fix memory leaks in ceph_mdsc_build_path() 2026-03-09 12:34:40 +01:00
mds_client.h ceph: fix race condition validating r_parent before applying state 2025-09-09 12:57:02 +02:00
mdsmap.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
mdsmap.h ceph: fix NULL pointer dereference in ceph_mds_auth_match() 2026-02-04 22:00:42 +01:00
metric.c ceph: print cluster fsid and client global_id in all debug logs 2023-11-03 23:28:33 +01:00
metric.h ceph: include average/stdev r/w/m latency in mds metrics 2022-03-21 13:35:16 +01:00
quota.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
snap.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
strings.c ceph: add getvxattr op 2022-03-01 18:26:37 +01:00
super.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
super.h ceph: fix NULL pointer dereference in ceph_mds_auth_match() 2026-02-04 22:00:42 +01:00
util.c ceph: move net/ceph/ceph_fs.c to fs/ceph/util.c 2020-01-27 16:53:40 +01:00
xattr.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00