Date: Thu, 17 Jun 2021 14:54:52 GMT From: Kristof Provost <kp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 3a57bb60f4ad - stable/13 - pf: use M_WAITOK where possible Message-ID: <202106171454.15HEsq8A010909@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=3a57bb60f4ad6afdfc0bbf833e7b6cf62a2038e8 commit 3a57bb60f4ad6afdfc0bbf833e7b6cf62a2038e8 Author: Kristof Provost <kp@FreeBSD.org> AuthorDate: 2021-06-09 12:00:07 +0000 Commit: Kristof Provost <kp@FreeBSD.org> CommitDate: 2021-06-17 12:38:08 +0000 pf: use M_WAITOK where possible In the ioctl path use M_WAITOK allocations whereever possible. These are less sensitive to memory pressure, and ioctl requests have no hard deadlines. Reviewed by: donner MFC after: 1 week Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D30702 (cherry picked from commit ea21980a3facfed4c2c6fd10d0f16276564fb540) --- sys/netpfil/pf/pf_ioctl.c | 78 ++++++++--------------------------------------- 1 file changed, 13 insertions(+), 65 deletions(-) diff --git a/sys/netpfil/pf/pf_ioctl.c b/sys/netpfil/pf/pf_ioctl.c index be7b8be23a31..30f12da782e6 100644 --- a/sys/netpfil/pf/pf_ioctl.c +++ b/sys/netpfil/pf/pf_ioctl.c @@ -3773,11 +3773,7 @@ DIOCCHANGEADDR_error: totlen = io->pfrio_size * sizeof(struct pfr_table); pfrts = mallocarray(io->pfrio_size, sizeof(struct pfr_table), - M_TEMP, M_NOWAIT); - if (pfrts == NULL) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->pfrio_buffer, pfrts, totlen); if (error) { free(pfrts, M_TEMP); @@ -3862,11 +3858,7 @@ DIOCCHANGEADDR_error: } totlen = io->pfrio_size * sizeof(struct pfr_addr); pfras = mallocarray(io->pfrio_size, sizeof(struct pfr_addr), - M_TEMP, M_NOWAIT); - if (! pfras) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->pfrio_buffer, pfras, totlen); if (error) { free(pfras, M_TEMP); @@ -3900,11 +3892,7 @@ DIOCCHANGEADDR_error: } totlen = io->pfrio_size * sizeof(struct pfr_addr); pfras = mallocarray(io->pfrio_size, sizeof(struct pfr_addr), - M_TEMP, M_NOWAIT); - if (! pfras) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->pfrio_buffer, pfras, totlen); if (error) { free(pfras, M_TEMP); @@ -3942,11 +3930,7 @@ DIOCCHANGEADDR_error: } totlen = count * sizeof(struct pfr_addr); pfras = mallocarray(count, sizeof(struct pfr_addr), M_TEMP, - M_NOWAIT); - if (! pfras) { - error = ENOMEM; - break; - } + M_WAITOK); error = copyin(io->pfrio_buffer, pfras, totlen); if (error) { free(pfras, M_TEMP); @@ -3981,11 +3965,7 @@ DIOCCHANGEADDR_error: } totlen = io->pfrio_size * sizeof(struct pfr_addr); pfras = mallocarray(io->pfrio_size, sizeof(struct pfr_addr), - M_TEMP, M_NOWAIT); - if (! pfras) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); PF_RULES_RLOCK(); error = pfr_get_addrs(&io->pfrio_table, pfras, &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL); @@ -4013,11 +3993,7 @@ DIOCCHANGEADDR_error: } totlen = io->pfrio_size * sizeof(struct pfr_astats); pfrastats = mallocarray(io->pfrio_size, - sizeof(struct pfr_astats), M_TEMP, M_NOWAIT); - if (! pfrastats) { - error = ENOMEM; - break; - } + sizeof(struct pfr_astats), M_TEMP, M_WAITOK); PF_RULES_RLOCK(); error = pfr_get_astats(&io->pfrio_table, pfrastats, &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL); @@ -4045,11 +4021,7 @@ DIOCCHANGEADDR_error: } totlen = io->pfrio_size * sizeof(struct pfr_addr); pfras = mallocarray(io->pfrio_size, sizeof(struct pfr_addr), - M_TEMP, M_NOWAIT); - if (! pfras) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->pfrio_buffer, pfras, totlen); if (error) { free(pfras, M_TEMP); @@ -4083,11 +4055,7 @@ DIOCCHANGEADDR_error: } totlen = io->pfrio_size * sizeof(struct pfr_addr); pfras = mallocarray(io->pfrio_size, sizeof(struct pfr_addr), - M_TEMP, M_NOWAIT); - if (! pfras) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->pfrio_buffer, pfras, totlen); if (error) { free(pfras, M_TEMP); @@ -4121,11 +4089,7 @@ DIOCCHANGEADDR_error: } totlen = io->pfrio_size * sizeof(struct pfr_addr); pfras = mallocarray(io->pfrio_size, sizeof(struct pfr_addr), - M_TEMP, M_NOWAIT); - if (! pfras) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->pfrio_buffer, pfras, totlen); if (error) { free(pfras, M_TEMP); @@ -4174,11 +4138,7 @@ DIOCCHANGEADDR_error: } totlen = sizeof(struct pfioc_trans_e) * io->size; ioes = mallocarray(io->size, sizeof(struct pfioc_trans_e), - M_TEMP, M_NOWAIT); - if (! ioes) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->array, ioes, totlen); if (error) { free(ioes, M_TEMP); @@ -4251,11 +4211,7 @@ DIOCCHANGEADDR_error: } totlen = sizeof(struct pfioc_trans_e) * io->size; ioes = mallocarray(io->size, sizeof(struct pfioc_trans_e), - M_TEMP, M_NOWAIT); - if (! ioes) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->array, ioes, totlen); if (error) { free(ioes, M_TEMP); @@ -4330,11 +4286,7 @@ DIOCCHANGEADDR_error: totlen = sizeof(struct pfioc_trans_e) * io->size; ioes = mallocarray(io->size, sizeof(struct pfioc_trans_e), - M_TEMP, M_NOWAIT); - if (ioes == NULL) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); error = copyin(io->array, ioes, totlen); if (error) { free(ioes, M_TEMP); @@ -4537,11 +4489,7 @@ DIOCCHANGEADDR_error: bufsiz = io->pfiio_size * sizeof(struct pfi_kif); ifstore = mallocarray(io->pfiio_size, sizeof(struct pfi_kif), - M_TEMP, M_NOWAIT); - if (ifstore == NULL) { - error = ENOMEM; - break; - } + M_TEMP, M_WAITOK); PF_RULES_RLOCK(); pfi_get_ifaces(io->pfiio_name, ifstore, &io->pfiio_size);
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