[PATCH v2 0/7] netfs: Miscellaneous fixes

David Howells
2026-04-14T08:20:17Z

Hi Christian,

Here are some miscellaneous fixes for netfslib:

(1) Fix triggering of a VM_BUG_ON_FOLIO() in netfs_write_begin().

(2) Fix error handling in netfs_extract_user_iter().

(3) Fix netfs_invalidate_folio() to clear the folio dirty bit if all dirty
data removed.

(4) Fix the handling of a partially failed copy (ie. EFAULT) into a
streaming write folio. Also remove the netfs_folio if a streaming
write folio is entirely overwritten.

(5) Fix netfs_read_gaps() to remove the netfs_folio from a filled folio.

(6) Fix the calculation of zero_point in netfs_release_folio() to limit it
to ->remote_i_size, not ->i_size.

(7) Fix netfs_perform_read() to not disable streaming writes when writing
to an fd that's open O_RDWR.

The patches can also be found here:

https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=netfs-fixes

Thanks,
David

Changes
=======
ver #2)
- Rebase on v7.0
- Drop the cachefiles dentry count fix as that's now upstream.
- Add four new patches from testing the generic/522 xfstest.

David Howells (5):
netfs: Fix netfs_invalidate_folio() to clear dirty bit if all changes
gone
netfs: Fix streaming write being overwritten
netfs: Fix read-gaps to remove netfs_folio from filled folio
netfs: Fix zeropoint update where i_size > remote_i_size
netfs: Fix write streaming disablement if fd open O_RDWR

Paulo Alcantara (1):
netfs: fix error handling in netfs_extract_user_iter()

Viacheslav Dubeyko (1):
netfs: fix VM_BUG_ON_FOLIO() issue in netfs_write_begin() call

fs/netfs/buffered_read.c | 9 ++++---
fs/netfs/buffered_write.c | 51 +++++++++++++++++++++++-------------
fs/netfs/iterator.c | 13 ++++++---
fs/netfs/misc.c | 8 ++++--
fs/netfs/read_retry.c | 11 ++++++--
include/trace/events/netfs.h | 5 ++++
6 files changed, 69 insertions(+), 28 deletions(-)