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c8ffd8bcdd
linux/arch/xtensa/kernel
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Miklos Szeredi c8ffd8bcdd vfs: add faccessat2 syscall 
POSIX defines faccessat() as having a fourth "flags" argument, while the
linux syscall doesn't have it.  Glibc tries to emulate AT_EACCESS and
AT_SYMLINK_NOFOLLOW, but AT_EACCESS emulation is broken.

Add a new faccessat(2) syscall with the added flags argument and implement
both flags.

The value of AT_EACCESS is defined in glibc headers to be the same as
AT_REMOVEDIR.  Use this value for the kernel interface as well, together
with the explanatory comment.

Also add AT_EMPTY_PATH support, which is not documented by POSIX, but can
be useful and is trivial to implement.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-05-14 16:44:25 +02:00
..
syscalls vfs: add faccessat2 syscall 2020-05-14 16:44:25 +02:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
align.S xtensa: clean up word alignment macros in assembly code 2017-12-10 14:48:53 -08:00
asm-offsets.c xtensa: drop unused field from the struct exc_table 2018-12-03 01:39:22 -08:00
coprocessor.S xtensa: move fast exception handlers close to vectors 2020-02-04 21:53:39 -08:00
entry.S Xtensa updates for v5.6: 2020-02-07 12:22:29 -08:00
head.S xtensa: add XIP kernel support 2019-11-26 11:33:38 -08:00
hw_breakpoint.c xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00
irq.c xtensa: drop variant IRQ support 2018-08-20 12:28:05 -07:00
jump_label.c jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00
Makefile xtensa: use the generic uncached segment support 2019-11-11 10:52:18 +01:00
mcount.S xtensa: abstract 'entry' and 'retw' in assembly code 2019-07-08 10:04:48 -07:00
module.c xtensa: clean up custom-controlled debug output 2017-12-16 22:37:08 -08:00
mxhead.S xtensa: drop unused sections and remapped reset handlers 2015-11-03 17:19:39 +03:00
pci-dma.c dma-direct: make uncached_kernel_address more general 2020-03-16 10:48:09 +01:00
pci.c xtensa: use generic pcibios_set_master and pcibios_enable_device 2019-06-16 23:31:29 -07:00
perf_event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
platform.c xtensa: drop empty platform_* functions from platforms 2020-01-31 12:17:28 -08:00
process.c xtensa: Implement copy_thread_tls 2020-01-07 13:31:25 +01:00
ptrace.c xtensa: fix system_call interaction with ptrace 2019-11-29 15:47:54 -08:00
s32c1i_selftest.c xtensa: move S32C1I self-test to a separate file 2016-11-16 15:08:28 -08:00
setup.c Xtensa updates for v5.6: 2020-02-07 12:22:29 -08:00
signal.c xtensa: clean up system_call/xtensa_rt_sigreturn interaction 2019-11-29 19:37:12 -08:00
smp.c xtensa: replace setup_irq() by request_irq() 2020-03-03 18:40:26 -08:00
stacktrace.c xtensa: add support for call0 ABI in userspace 2019-09-01 13:11:57 -07:00
syscall.c xtensa: implement syscall tracepoints 2018-12-17 13:50:25 -08:00
time.c xtensa: replace setup_irq() by request_irq() 2020-03-03 18:40:26 -08:00
traps.c sched/rt, xtensa: Use CONFIG_PREEMPTION 2019-12-08 14:37:35 +01:00
vectors.S xtensa: move fast exception handlers close to vectors 2020-02-04 21:53:39 -08:00
vmlinux.lds.S xtensa: reorganize vectors placement 2020-02-04 21:57:02 -08:00
xtensa_ksyms.c xtensa: drop EXPORT_SYMBOL for outs*/ins* 2019-10-14 16:02:04 -07:00