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    [XFS] Update c/mtime correctly on truncates · 44d814ce
    David Chinner 提交于
    XFS changes the c/mtime of an inode when truncating it to the same size.
    The c/mtime is only supposed to change if the size is changed. Not to be
    confused with ftruncate, where the c/mtime is supposed to be changed even
    if the size is not changed.
    
    The Linux VFS encodes this semantic difference in the flags it sends down
    to ->setattr, which XFS currently ignores. We need to make XFS pay
    attention to the VFS flags and hence Do The Right Thing.
    
    SGI-PV: 977547
    SGI-Modid: xfs-linux-melb:xfs-kern:30536a
    Signed-off-by: NDavid Chinner <dgc@sgi.com>
    Signed-off-by: NChristoph Hellwig <hch@infradead.org>
    Signed-off-by: NLachlan McIlroy <lachlan@sgi.com>
    44d814ce
xfs_vnodeops.c 106.0 KB