On Tue, Mar 21, 2017 at 10:53:09AM +0900, Satoru Takeuchi wrote: > There have been some discussions about inconsistent device between > /proc/pid/maps and stat(2). > > http://thr3ads.net/btrfs-devel/2011/05/2346176-RFC-PATCH-0-2-btrfs-vfs-Return-same-device-in-stat-2-and-proc-pid-maps > https://www.spinics.net/lists/linux-btrfs/msg09044.html > https://patchwork.kernel.org/patch/2825842/ > https://patchwork.kernel.org/patch/2831525/ > > It's important since it breaks user programs like lsof(8). There was a patche > by Mark to fix this problem. > However, unfortunately, that patch is not merged so far.
And no variant of the get_map_dev will ever be merged. Reworking this requires extensions to the superblock and subvolume structures, making it more generic and suitable for VFS. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
