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| author | Zhang Xiaoxu <zhangxiaoxu5@huawei.com> | 2020-06-23 07:31:54 -0400 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2020-06-23 19:06:27 -0500 |
| commit | 6b69040247e14b43419a520f841f2b3052833df9 (patch) | |
| tree | 473eee7d8e62c8363b22aa944142c7ce2ee6c2a5 /usr | |
| parent | 95a3d8f3af9b0d63b43f221b630beaab9739d13a (diff) | |
| download | linux-stable-6b69040247e14b43419a520f841f2b3052833df9.tar.gz linux-stable-6b69040247e14b43419a520f841f2b3052833df9.tar.bz2 linux-stable-6b69040247e14b43419a520f841f2b3052833df9.zip | |
cifs/smb3: Fix data inconsistent when zero file range
CIFS implements the fallocate(FALLOC_FL_ZERO_RANGE) with send SMB
ioctl(FSCTL_SET_ZERO_DATA) to server. It just set the range of the
remote file to zero, but local page cache not update, then the data
inconsistent with server, which leads the xfstest generic/008 failed.
So we need to remove the local page caches before send SMB
ioctl(FSCTL_SET_ZERO_DATA) to server. After next read, it will
re-cache it.
Fixes: 30175628bf7f5 ("[SMB3] Enable fallocate -z support for SMB3 mounts")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Cc: stable@vger.kernel.org # v3.17
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions