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authorAndy Lutomirski2014-11-22 18:00:31 -0800
committerLinus Torvalds2014-11-23 13:56:18 -0800
commitaf726f21ed8af2cdaa4e93098dc211521218ae65 (patch)
treed3546c0fe44e49d283ed3d0ced3b92873f28df34 /fs/file.c
parentfc14f9c1272f62c3e8d01300f52467c0d9af50f9 (diff)
x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C
There's nothing special enough about the espfix64 double fault fixup to justify writing it in assembly. Move it to C. This also fixes a bug: if the double fault came from an IST stack, the old asm code would return to a partially uninitialized stack frame. Fixes: 3891a04aafd668686239349ea58f3314ea2af86b Signed-off-by: Andy Lutomirski <luto@amacapital.net> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/file.c')
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