linux/fs/overlayfs
Linus Torvalds a29835c9d0 vfs-6.13.ovl
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Merge tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull overlayfs updates from Christian Brauner:
 "Make overlayfs support specifying layers through file descriptors.

  Currently overlayfs only allows specifying layers through path names.
  This is inconvenient for users that want to assemble an overlayfs
  mount purely based on file descriptors:

  This enables user to specify both:

    fsconfig(fd_overlay, FSCONFIG_SET_FD, "upperdir+", NULL, fd_upper);
    fsconfig(fd_overlay, FSCONFIG_SET_FD, "workdir+",  NULL, fd_work);
    fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower1);
    fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower2);

  in addition to:

    fsconfig(fd_overlay, FSCONFIG_SET_STRING, "upperdir+", "/upper",  0);
    fsconfig(fd_overlay, FSCONFIG_SET_STRING, "workdir+",  "/work",   0);
    fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower1", 0);
    fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower2", 0);

  There's also a large set of new overlayfs selftests to test new
  features and some older properties"

* tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  selftests: add test for specifying 500 lower layers
  selftests: add overlayfs fd mounting selftests
  selftests: use shared header
  Documentation,ovl: document new file descriptor based layers
  ovl: specify layers via file descriptors
  fs: add helper to use mount option as path or fd
2024-11-18 10:45:06 -08:00
..
copy_up.c remove pointless includes of <linux/fdtable.h> 2024-10-07 13:34:41 -04:00
dir.c ovl: fix copy-up in tmpfile 2024-05-28 10:06:55 +02:00
export.c ovl: fix encoding fid for lower only root 2024-06-14 10:30:40 +02:00
file.c fs: pass offset and result to backing_file end_write() callback 2024-10-16 13:17:45 +02:00
inode.c ovl: remove duplicate included header 2024-05-10 13:22:46 +02:00
Kconfig fs: prepare for stackable filesystems backing file helpers 2023-12-23 16:35:08 +02:00
Makefile ovl: Move xattr support to new xattrs.c file 2023-10-31 00:12:59 +02:00
namei.c ovl: mark xwhiteouts directory with overlay.opaque='x' 2024-01-23 12:39:48 +02:00
overlayfs.h ovl: implement tmpfile 2024-05-02 20:35:57 +02:00
ovl_entry.h ovl: mark xwhiteouts directory with overlay.opaque='x' 2024-01-23 12:39:48 +02:00
params.c ovl: specify layers via file descriptors 2024-10-14 16:31:16 +02:00
params.h ovl: store and show the user provided lowerdir mount option 2023-10-31 00:13:02 +02:00
readdir.c ovl: mark xwhiteouts directory with overlay.opaque='x' 2024-01-23 12:39:48 +02:00
super.c ovl: don't set the superblock's errseq_t manually 2024-08-29 11:35:09 +02:00
util.c kernel_file_open(): get rid of inode argument 2024-04-15 16:03:24 -04:00
xattrs.c ovl: Support escaped overlay.* xattrs 2023-10-31 00:12:59 +02:00