Messages in this thread | | | Date | Wed, 19 Jul 2023 19:17:58 +0200 | Subject | Re: + ipc-sem-use-flexible-array-in-struct-sem_undo.patch added to mm-nonmm-unstable branch | From | Manfred Spraul <> |
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Hi Christophe,
On 7/10/23 22:35, Andrew Morton wrote: > The patch titled > Subject: ipc/sem: use flexible array in 'struct sem_undo' > has been added to the -mm mm-nonmm-unstable branch. Its filename is > ipc-sem-use-flexible-array-in-struct-sem_undo.patch > > This patch will shortly appear at > https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ipc-sem-use-flexible-array-in-struct-sem_undo.patch > > This patch will later appear in the mm-nonmm-unstable branch at > git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm > > Before you just go and hit "reply", please: > a) Consider who else should be cc'ed > b) Prefer to cc a suitable mailing list as well > c) Ideally: find the original patch on the mailing list and do a > reply-to-all to that, adding suitable additional cc's > > *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** > > The -mm tree is included into linux-next via the mm-everything > branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm > and is updated there every 2-3 working days > > ------------------------------------------------------ > From: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > Subject: ipc/sem: use flexible array in 'struct sem_undo' > Date: Sun, 9 Jul 2023 18:12:55 +0200 > > Turn 'semadj' in 'struct sem_undo' into a flexible array. > > The advantages are: > - save the size of a pointer when the new undo structure is allocated > - avoid some always ugly pointer arithmetic to get the address of semadj > - avoid an indirection when the array is accessed > > While at it, use struct_size() to compute the size of the new undo > structure. > > Link: https://lkml.kernel.org/r/1ba993d443ad7e16ac2b1902adab1f05ebdfa454.1688918791.git.christophe.jaillet@wanadoo.fr > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > Cc: Jann Horn <jannh@google.com> > Cc: Manfred Spraul <manfred@colorfullife.com> > Cc: Davidlohr Bueso <dave@stgolabs.net> > Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Manfred Spraul <manfred@colorfullife.com>
--
Manfred
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