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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-21 20:42:18 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-21 20:42:18 +0300
commitc57b1f0a5f40e6d35f22a3ce61e69d73fc0b1dbc (patch)
treed299d184b99eaab2a6b76948c46fd8a91c47a4ad /include/uapi
parent591fd30eee47ed75d1296d619dd467414d0894e3 (diff)
parenteacd9aa8cedeb412842c7b339adbaa0477fdd5ad (diff)
downloadlinux-c57b1f0a5f40e6d35f22a3ce61e69d73fc0b1dbc.tar.xz
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull namei updates from Al Viro: "Most of that pile is LOOKUP_CACHED series; the rest is a couple of misc cleanups in the general area... There's a minor bisect hazard in the end of series, and normally I would've just folded the fix into the previous commit, but this branch is shared with Jens' tree, with stuff on top of it in there, so that would've required rebases outside of vfs.git" * 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix handling of nd->depth on LOOKUP_CACHED failures in try_to_unlazy* fs: expose LOOKUP_CACHED through openat2() RESOLVE_CACHED fs: add support for LOOKUP_CACHED saner calling conventions for unlazy_child() fs: make unlazy_walk() error handling consistent fs/namei.c: Remove unlikely of status being -ECHILD in lookup_fast() do_tmpfile(): don't mess with finish_open()
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/openat2.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/linux/openat2.h b/include/uapi/linux/openat2.h
index 58b1eb711360..a5feb7604948 100644
--- a/include/uapi/linux/openat2.h
+++ b/include/uapi/linux/openat2.h
@@ -35,5 +35,9 @@ struct open_how {
#define RESOLVE_IN_ROOT 0x10 /* Make all jumps to "/" and ".."
be scoped inside the dirfd
(similar to chroot(2)). */
+#define RESOLVE_CACHED 0x20 /* Only complete if resolution can be
+ completed through cached lookup. May
+ return -EAGAIN if that's not
+ possible. */
#endif /* _UAPI_LINUX_OPENAT2_H */