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665fc901b5
linux/arch/x86/entry
History
Andy Lutomirski ae852495be x86/entry/64: Further improve paranoid_entry comments 
Commit:

  16561f27f9 ("x86/entry: Add some paranoid entry/exit CR3 handling comments")

... added some comments.  This improves them a bit:

 - When I first read the new comments, it was unclear to me whether
   they were referring to the case where paranoid_entry interrupted
   other entry code or where paranoid_entry was itself interrupted.
   Clarify it.

 - Remove the EBX comment.  We no longer use EBX as a SWAPGS
   indicator.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/c47daa1888dc2298e7e1d3f82bd76b776ea33393.1539542111.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-17 12:30:27 +02:00
..
syscalls x86: Wire up restartable sequence system call 2018-06-06 11:58:32 +02:00
vdso x86/vdso: Fix vDSO syscall fallback asm constraint regression 2018-10-04 08:17:50 +02:00
vsyscall docs: Fix some broken references 2018-06-15 18:10:01 -03:00
calling.h syscalls/x86: Extend register clearing on syscall entry to lower registers 2018-04-05 16:59:39 +02:00
common.c rseq: Avoid infinite recursion when delivering SIGSEGV 2018-06-22 19:04:22 +02:00
entry_32.S x86/entry/32: Clear the CS high bits 2018-10-17 12:30:20 +02:00
entry_64_compat.S x86/entry/64/compat: Fix "x86/entry/64/compat: Preserve r8-r11 in int $0x80" 2018-06-27 09:35:40 +02:00
entry_64.S x86/entry/64: Further improve paranoid_entry comments 2018-10-17 12:30:27 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
syscall_32.c syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64 2018-04-05 16:59:38 +02:00
syscall_64.c syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64 2018-04-05 16:59:38 +02:00
thunk_32.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
thunk_64.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00