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authorLeonard Michlmayr <leonard.michlmayr@gmail.com>2010-03-04 17:07:28 -0500
committerTheodore Ts'o <tytso@mit.edu>2010-03-04 17:07:28 -0500
commitaca92ff6f57c000d1b4523e383c8bd6b8269b8b1 (patch)
treec810b72c091b8bf596a21ee4d56c830b9d0c4c50 /kernel
parent9aaab0589baa61d637a52badddbff2d74f35a955 (diff)
ext4: correctly calculate number of blocks for fiemap
ext4_fiemap() rounds the length of the requested range down to blocksize, which is is not the true number of blocks that cover the requested region. This problem is especially impressive if the user requests only the first byte of a file: not a single extent will be reported. We fix this by calculating the last block of the region and then subtract to find the number of blocks in the extents. Signed-off-by: Leonard Michlmayr <leonard.michlmayr@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions