[PATCH v7 0/4] smb: fix fallocate and allocation accounting

[Huiwen He <huiwen.he@linux.dev>]

From: Huiwen He <hehuiwen@kylinos.cn>

Changes in v7:

- Rework Patch 1 to keeps the duplicate-extents QueryInfo result valid in
  the inode cache, avoiding duplicate revalidation when userspace stats
  the cloned file.

- Rework Patch 3 to no longer uses FSCTL_QUERY_ALLOCATED_RANGES for small
  fallocate ranges that start at or beyond EOF. These ranges are now
  zero-written directly because there are no old allocated ranges to
  preserve there.

The following patch merged into #ksmbd-for-next-next is not resent:
  - smb/server: map SET_INFO ENOSPC to disk full

The following patches are already in upstream and are not resent:
  - 898d280f4e4d smb/client: name the default fallocate mode
  - 2a4b3d2db5c6 smb/client: preserve errors from smb2_set_sparse()
  - 99cd0a6eeb6c smb/client: do not account EOF extension as allocation

Link to v6:
https://lore.kernel.org/linux-cifs/20260701152157.822207-1-huiwen.he@linux.dev/

Thanks,
Huiwen

Huiwen He (4):
  smb/client: refresh allocation size after duplicate extents
  smb/client: reduce fallocate zero buffer allocation
  smb/client: emulate small EOF-extending mode 0 fallocate ranges
  smb/client: refresh allocation after EOF-extending fallocate

 fs/smb/client/cifsfs.c    |  10 ++-
 fs/smb/client/smb2ops.c   | 147 ++++++++++++++++++++++++++++++++++----
 fs/smb/client/smb2pdu.c   |  19 +++++
 fs/smb/client/smb2proto.h |   3 +
 fs/smb/common/fscc.h      |   5 ++
 fs/smb/server/smb2pdu.h   |   4 --
 6 files changed, 167 insertions(+), 21 deletions(-)

-- 
2.43.0