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(parent: 31742c5) | patch
[SMB3] Enable fallocate -z support for SMB3 mounts
authorSteve French <smfrench@gmail.com>
Sun, 17 Aug 2014 23:16:40 +0000 (18:16 -0500)
committerSteve French <smfrench@gmail.com>
Sun, 17 Aug 2014 23:16:40 +0000 (18:16 -0500)
commit30175628bf7f521e9ee31ac98fa6d6fe7441a556
tree6f3099407d45e8cc4d6b438f6587ddce8ef96cbatree | snapshot
parent31742c5a331766bc7df6b0d525df00c6cd20d5a6commit | diff
[SMB3] Enable fallocate -z support for SMB3 mounts

fallocate -z (FALLOC_FL_ZERO_RANGE) can map to SMB3
FSCTL_SET_ZERO_DATA SMB3 FSCTL but FALLOC_FL_ZERO_RANGE
when called without the FALLOC_FL_KEEPSIZE flag set could want
the file size changed so we can not support that subcase unless
the file is cached (and thus we know the file size).

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilovsky@samba.org>
fs/cifs/smb2ops.c diff | blob | history
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