enable fallocate punch hole ("fallocate -p") for SMB3

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Implement FALLOC_FL_PUNCH_HOLE (which does not change the file size
fortunately so this matches the behavior of the equivalent SMB3
fsctl call) for SMB3 mounts.  This allows "fallocate -p" to work.
It requires that the server support setting files as sparse
(which Windows allows).

Signed-off-by: Steve French <smfrench@gmail.com>

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This commit is contained in:

Steve French 2014-08-17 08:38:47 -05:00

parent ad3829cf1d

commit 31742c5a33

5 changed files with 73 additions and 1 deletions

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19

fs/cifs/cifsfs.c

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2

fs/cifs/cifsglob.h

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45

fs/cifs/smb2ops.c

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6

fs/cifs/smb2pdu.h

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2

fs/cifs/smbfsctl.h

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