smb3: allow controlling length of time directory entries are cached with dir leases

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Currently with directory leases we cache directory contents for a fixed period
of time (default 30 seconds) but for many workloads this is too short.  Allow
configuring the maximum amount of time directory entries are cached when a
directory lease is held on that directory. Add module load parm "max_dir_cache"

For example to set the timeout to 10 minutes you would do:

  echo 600 > /sys/module/cifs/parameters/dir_cache_timeout

or to disable caching directory contents:

  echo 0 > /sys/module/cifs/parameters/dir_cache_timeout

Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

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This commit is contained in:

Steve French 2023-08-30 22:48:41 -05:00

parent efc0b0bcff

commit 238b351d09

3 changed files with 13 additions and 2 deletions

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4

fs/smb/client/cached_dir.c

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10

fs/smb/client/cifsfs.c

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1

fs/smb/client/cifsglob.h

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