smb3: allow parallelizing decryption of reads

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decrypting large reads on encrypted shares can be slow (e.g. adding
multiple milliseconds per-read on non-GCM capable servers or
when mounting with dialects prior to SMB3.1.1) - allow parallelizing
of read decryption by launching worker threads.

Testing to Samba on localhost showed 25% improvement.
Testing to remote server showed very large improvement when
doing more than one 'cp' command was called at one time.

Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>

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This commit is contained in:

Steve French 2019-09-07 01:09:49 -05:00

parent 3175eb9b57

commit 35cf94a397

3 changed files with 97 additions and 4 deletions

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17

fs/cifs/cifsfs.c

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1

fs/cifs/cifsglob.h

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83

fs/cifs/smb2ops.c

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