These 2 patches are a first pass to add a statx command to xfs_io in hopes that it will aid creation of xfstests statx regression tests. xfs_io> help statx statx [-O | -m mask][-FDLAP] -- extended information about the currently open file Display extended file status. Options: -m mask -- Specify the field mask for the statx call (default STATX_ALL) -A -- Suppress terminal automount traversal -D -- Don't sync attributes with the server -F -- Force the attributes to be sync'd with the server -L -- Follow symlinks (statx link target) -O -- Remove basic stats (STATX_BASIC_STATS) from default mask -P -- pretty-print results similar to stat(1) xfs_io> statx stx_mask: 0xfff stx_blksize: 4096 stx_attributes: 0x70 stx_nlink: 1 stx_uid: 0 stx_gid: 0 stx_mode: 0100644 stx_ino: 99 stx_size: 0 stx_blocks: 0 stx_atime.tv_sec: 1490109633 stx_atime.tv_nsec: 676550238 stx_btime.tv_sec: 1490109633 stx_btime.tv_nsec: 675550234 stx_ctime.tv_sec: 1490109725 stx_ctime.tv_nsec: 69966839 stx_mtime.tv_sec: 1490109633 stx_mtime.tv_nsec: 676550238 stx_rdev_major: 0 stx_rdev_minor: 0 stx_dev_major: 7 stx_dev_minor: 0 patch 2 is a bit of a hack for now; it hardcodes the 64-bit x86 syscall nr, and includes a whole header full of statx #defines. I'm not sure if we want to provide those under #ifndef, or just require new kernel headers & test for them w/ autoconf. I'll clean it up one way or another. It also lifts a fair bit from David's samples/statx/test-statx.c; a lot of that is pretty-printing that we don't do for xfs_io's standard stat command, so maybe it should get dropped from this patch for code brevity. Another interesting limitation of all of the xfs_io stat variants is that they currently can't stat any file that they can't open, which may or may not be a limitation that we care about.... Anyway - thoughts on whether this is enough of an interface to facilitate testing, and whether we should accommodate old headers would be appreciated, and I'll get it cleaned up & send a V2. -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
