From: "Darrick J. Wong"
commit c0e473a0d226479e8e925d5ba93f751d8df628e9 upstream.
With the new large sector size support, it's now the case that
set_blocksize can change i_blksize and the folio order in a manner that
conflicts with a concurrent reader and causes a kernel crash.
Specifically, le
From: Christoph Hellwig
commit 727cfe976758b79f8d2f8051c75a5ccb14539a56 upstream.
Open code __generic_file_write_iter to remove the indirect call into
->direct_IO and to prepare using the iomap based write code.
Signed-off-by: Christoph Hellwig
Reviewed-by: Johannes Thumshirn
Reviewed-by: Chr
From: Ryusuke Konishi
commit fb881cd7604536b17a1927fb0533f9a6982ffcc5 upstream.
After commit c0e473a0d226 ("block: fix race between set_blocksize and read
paths") was merged, set_blocksize() called by sb_set_blocksize() now locks
the inode of the backing device file. As a result of this change,
From: Christoph Hellwig
commit 44fff0fa08ec5a6d9d5fb05443a36d854d0ece4d upstream.
Add a helper dealing with handling the syncing of a buffered write
fallback for direct I/O.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig
Reviewed-by: Damie
From: Christoph Hellwig
commit c402a9a9430b670926decbb284b756ee6f47c1ec upstream.
Add a helper to invalidate page cache after a dio write.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig
Reviewed-by: Damien Le Moal
Reviewed-by: Hannes Reine
From: Christoph Hellwig
commit 182c25e9c157f37bd0ab5a82fe2417e2223df459 upstream.
All callers of generic_perform_write need to updated ki_pos, move it into
common code.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig
Reviewed-by: Xiubo Li
R
From: Al Viro
commit 8287474aa5ffb41df52552c4ae4748e791d2faf2 upstream.
If we fail filemap_write_and_wait_range() on the range the buffered write went
into, we only report the "number of bytes which we direct-written", to quote
the comment in there. Which is fine, but buffered write has already
This series aims to fix the CVE-2025-38073 for 6.1 LTS. Which is fixed
by c0e473a0d226 ("block: fix race between set_blocksize and read
paths"). This patch is built on top multiple refactors that where
merged on 6.6. The needed dependecies are:
- e003f74afbd2 ("filemap: add a kiocb_invalidate_pa
From: Christoph Hellwig
commit e003f74afbd2feadbb9ffbf9135e2d2fb5d320a5 upstream.
Factor out a helper that calls filemap_write_and_wait_range and
invalidate_inode_pages2_range for the range covered by a write kiocb or
returns -EAGAIN if the kiocb is marked as nowait and there would be pages
to w
