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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-07 10:17:00 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 08:47:49 -0700 |
| commit | a2f2aa2f0c648d1dc22cf9ef4990cfc0b721add8 (patch) | |
| tree | ce2dc37e8a5967d545550d6aff9fb0965ee894ef /drivers | |
| parent | c148a3eb63d97d2956a906ebed2def889d07eb21 (diff) | |
| download | lwn-a2f2aa2f0c648d1dc22cf9ef4990cfc0b721add8.tar.gz lwn-a2f2aa2f0c648d1dc22cf9ef4990cfc0b721add8.zip | |
vfs: make O_PATH file descriptors usable for 'fchdir()'
commit 332a2e1244bd08b9e3ecd378028513396a004a24 upstream.
We already use them for openat() and friends, but fchdir() also wants to
be able to use O_PATH file descriptors. This should make it comparable
to the O_SEARCH of Solaris. In particular, O_PATH allows you to access
(not-quite-open) a directory you don't have read persmission to, only
execute permission.
Noticed during development of multithread support for ksh93.
Reported-by: ольга крыжановская <olga.kryzhanovska@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions