mirror_zfs/module
Aleksa Sarai dbf6108b4d zfs_rename: support RENAME_* flags
Implement support for Linux's RENAME_* flags (for renameat2). Aside from
being quite useful for userspace (providing race-free ways to exchange
paths and implement mv --no-clobber), they are used by overlayfs and are
thus required in order to use overlayfs-on-ZFS.

In order for us to represent the new renameat2(2) flags in the ZIL, we
create two new transaction types for the two flags which need
transactional-level support (RENAME_EXCHANGE and RENAME_WHITEOUT).
RENAME_NOREPLACE does not need any ZIL support because we know that if
the operation succeeded before creating the ZIL entry, there was no file
to be clobbered and thus it can be treated as a regular TX_RENAME.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Pavel Snajdr <snajpa@snajpa.net>
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Closes #12209
Closes #14070
2022-10-28 09:49:20 -07:00
..
avl Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
icp crypto_get_ptrs() should always write to *out_data_2 2022-10-19 17:10:56 -07:00
lua Fix theoretical array overflow in lua_typename() 2022-10-14 13:41:56 -07:00
nvpair Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
os zfs_rename: support RENAME_* flags 2022-10-28 09:49:20 -07:00
unicode Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zcommon Add options to zfs redundant_metadata property 2022-10-19 17:07:51 -07:00
zfs zfs_rename: support RENAME_* flags 2022-10-28 09:49:20 -07:00
zstd Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
.gitignore FreeBSD: Ignore symlink to i386 includes 2022-08-02 16:34:23 -07:00
Kbuild.in Cleanup dead spa_boot code 2022-09-13 16:40:10 -07:00
Makefile.bsd Cleanup dead spa_boot code 2022-09-13 16:40:10 -07:00
Makefile.in autoconf: use include directives instead of recursing down lib 2022-05-10 10:18:11 -07:00