smb3: add mount option to allow forced caching of read only share

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If a share is immutable (at least for the period that it will
be mounted) it would be helpful to not have to revalidate
dentries repeatedly that we know can not be changed remotely.

Add "cache=" option (cache=ro) for mounting read only shares
in order to improve performance in cases in which we know that
the share will not be changing while it is in use.

Signed-off-by: Steve French <stfrench@microsoft.com>

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This commit is contained in:

Steve French 2019-08-27 23:58:54 -05:00

parent ac6ad7a8c9

commit 83bbfa706d

4 changed files with 21 additions and 2 deletions

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1

fs/cifs/cifs_fs_sb.h

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2

fs/cifs/cifsfs.c

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6

fs/cifs/cifsglob.h

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14

fs/cifs/connect.c

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