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non-consuming variant of do_renameat2()

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filename_renameat2() replaces do_renameat2(); unlike the latter,
it does not drop filename references - these days it can be just
as easily arranged in the caller.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2026-01-06 23:19:10 -05:00
parent 0697b4f400
commit e6d50234cc
4 changed files with 29 additions and 19 deletions
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9
Documentation/filesystems/porting.rst
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@@ -1334,3 +1334,12 @@ end_creating() and the parent will be unlocked precisely when necessary.
kill_litter_super() is gone; convert to DCACHE_PERSISTENT use (as all
in-tree filesystems have done).
---
**mandatory**
fs/namei.c primitives that consume filesystem references (do_renameat2(),
do_linkat(), do_symlinkat(), do_mkdirat(), do_mknodat(), do_unlinkat()
and do_rmdir()) are getting replaced with non-consuming analogues
(filename_renameat2(), etc.) Replaced so far: do_renameat2().