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40 cifs/smb3 changesets, including 4 for stable

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Merge tag '5.12-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs updates from Steve French:

 - improvements to root directory metadata caching

 - addition of new "rasize" mount parameter which can significantly
   increase read ahead performance (e.g. copy can be much faster,
   especially with multichannel)

 - addition of support for insert and collapse range

 - improvements to error handling in mount

* tag '5.12-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: (40 commits)
  cifs: update internal version number
  smb3: add rasize mount parameter to improve readahead performance
  smb3: limit noisy error
  cifs: fix leak in cifs_smb3_do_mount() ctx
  cifs: remove unnecessary copies of tcon->crfid.fid
  cifs: Return correct error code from smb2_get_enc_key
  cifs: fix out-of-bound memory access when calling smb3_notify() at mount point
  smb2: fix use-after-free in smb2_ioctl_query_info()
  cifs: export supported mount options via new mount_params /proc file
  cifs: log mount errors using cifs_errorf()
  cifs: add fs_context param to parsing helpers
  cifs: make fs_context error logging wrapper
  cifs: add FALLOC_FL_INSERT_RANGE support
  cifs: add support for FALLOC_FL_COLLAPSE_RANGE
  cifs: check the timestamp for the cached dirent when deciding on revalidate
  cifs: pass the dentry instead of the inode down to the revalidation check functions
  cifs: add a timestamp to track when the lease of the cached dir was taken
  cifs: add a function to get a cached dir based on its dentry
  cifs: Grab a reference for the dentry of the cached directory during the lifetime of the cache
  cifs: store a pointer to the root dentry in cifs_sb_info once we have completed mounting the share
  ...
This commit is contained in:
Linus Torvalds 2021-04-26 13:41:30 -07:00
commit 2a19866b6e
32 changed files with 724 additions and 550 deletions
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3
Documentation/admin-guide/cifs/usage.rst
View file

@ -714,6 +714,7 @@ DebugData Displays information about active CIFS sessions and
version.
Stats Lists summary resource usage information as well as per
share statistics.
open_files List all the open file handles on all active SMB sessions.
======================= =======================================================
Configuration pseudo-files:
@ -794,6 +795,8 @@ LinuxExtensionsEnabled If set to one then the client will attempt to
support and want to map the uid and gid fields
to values supplied at mount (rather than the
actual values, then set this to zero. (default 1)
dfscache List the content of the DFS cache.
If set to 0, the client will clear the cache.
======================= =======================================================
These experimental features and tracing can be enabled by changing flags in