| commit | 65341f7bbea824d2ff9d37db15d8be162df42bd3 | |
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Thu, 28 Sep 2023 16:56:21 +0000 (28 13:56 -0300) | ||
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Mon, 20 Nov 2023 16:15:24 +0000 (20 13:15 -0300) | ||
| tree | ff89d7074d0602f93b0c872966c4bc288ac5d7d3 | treesnapshot (tar.gz zip) |
| parent | c52c2c32db15aba8bbe1a0b4d3235f97d9c1a525 | commitdiff |
linux: Use fchmodat2 on fchmod for flags different than 0 (BZ 26401)
Linux 6.6 (09da082b07bbae1c) added support for fchmodat2, which has
similar semantics as fchmodat with an extra flag argument. This
allows fchmodat to implement AT_SYMLINK_NOFOLLOW and AT_EMPTY_PATH
without the need for procfs.
The syscall is registered on all architectures (with value of 452
except on alpha which is 562, commit 78252deb023cf087).
The tst-lchmod.c requires a small fix where fchmodat checks two
contradictory assertions ('(st.st_mode & 0777) == 2' and
'(st.st_mode & 0777) == 3').
Checked on x86_64-linux-gnu on a 6.6 kernel.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
Linux 6.6 (09da082b07bbae1c) added support for fchmodat2, which has
similar semantics as fchmodat with an extra flag argument. This
allows fchmodat to implement AT_SYMLINK_NOFOLLOW and AT_EMPTY_PATH
without the need for procfs.
The syscall is registered on all architectures (with value of 452
except on alpha which is 562, commit 78252deb023cf087).
The tst-lchmod.c requires a small fix where fchmodat checks two
contradictory assertions ('(st.st_mode & 0777) == 2' and
'(st.st_mode & 0777) == 3').
Checked on x86_64-linux-gnu on a 6.6 kernel.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
| io/tst-lchmod.c | diffblobblamehistory | |
| sysdeps/unix/sysv/linux/fchmodat.c | diffblobblamehistory | |
| sysdeps/unix/sysv/linux/kernel-features.h | diffblobblamehistory |