The patch titled fs: make block fiemap mapping length at least blocksize long has been removed from the -mm tree. Its filename was fs-make-block-fiemap-mapping-length-at-least-blocksize-long.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: fs: make block fiemap mapping length at least blocksize long From: Josef Bacik <josef@xxxxxxxxxx> Some filesystems don't deal well with being asked to map less than blocksize blocks (GFS2 for example). Since we are always mapping at least blocksize sections anyway, just make sure len is at least as big as a blocksize so we don't trip up any filesystems. Thanks, Signed-off-by: Josef Bacik <josef@xxxxxxxxxx> Cc: Steven Whitehouse <swhiteho@xxxxxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/ioctl.c | 7 +++++++ 1 file changed, 7 insertions(+) diff -puN fs/ioctl.c~fs-make-block-fiemap-mapping-length-at-least-blocksize-long fs/ioctl.c --- a/fs/ioctl.c~fs-make-block-fiemap-mapping-length-at-least-blocksize-long +++ a/fs/ioctl.c @@ -273,6 +273,13 @@ int __generic_block_fiemap(struct inode len = isize; } + /* + * Some filesystems can't deal with being asked to map less than + * blocksize, so make sure our len is at least block length. + */ + if (logical_to_blk(inode, len) == 0) + len = blk_to_logical(inode, 1); + start_blk = logical_to_blk(inode, start); last_blk = logical_to_blk(inode, start + len - 1); _ Patches currently in -mm which might be from josef@xxxxxxxxxx are origin.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html