smb3: Add new parm "nodelete"

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In order to handle workloads where it is important to make sure that
a buggy app did not delete content on the drive, the new mount option
"nodelete" allows standard permission checks on the server to work,
but prevents on the client any attempts to unlink a file or delete
a directory on that mount point.  This can be helpful when running
a little understood app on a network mount that contains important
content that should not be deleted.

Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>

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This commit is contained in:

Steve French 2020-05-19 03:06:57 -05:00

parent b2ca6c2c9e

commit 82e9367c43

4 changed files with 23 additions and 1 deletions

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2

fs/cifs/cifsfs.c

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2

fs/cifs/cifsglob.h

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9

fs/cifs/connect.c

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11

fs/cifs/inode.c

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