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SubjectRe: [PATCH] memfd: fix F_SEAL_WRITE after shmem huge page allocated
On Wed, 2 Mar 2022, yong w wrote:

> Hello,
> this patch does not apply to the 4.19 kernel.
> Is it necessary to make corresponding patches for each stable version?

I expect there will be three variants (if it's worth porting back
to older stables: you make it clear that you do want 4.19, thanks):
one for xarray kernels, one for radix-tree kernels, and one for
old shmem.c-not-memfd.c kernels; or perhaps I've missed a variant.

Once this patch has gone to Linus, then been picked up by GregKH
for recent kernels, I'll respond to the mail when it goes into his
tree to provide the others (or maybe I won't bother with the oldest).

We didn't research a "Fixes:" tag for the patch, so Greg may quietly
stop at the oldest kernel to which the patch does not apply, instead
of sending out explicit pleas for substitute patches as he usually does;
but I'll know anyway when the recent ones go in, and respond then.

Hugh

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