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Open Source and information security mailing list archives
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Date: Fri, 9 Oct 2020 12:50:00 -0700 From: ira.weiny@...el.com To: Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, Andy Lutomirski <luto@...nel.org>, Peter Zijlstra <peterz@...radead.org> Cc: Ira Weiny <ira.weiny@...el.com>, Jan Kara <jack@...e.cz>, "Theodore Ts'o" <tytso@....edu>, Randy Dunlap <rdunlap@...radead.org>, Alex Shi <alex.shi@...ux.alibaba.com>, x86@...nel.org, Dave Hansen <dave.hansen@...ux.intel.com>, Dan Williams <dan.j.williams@...el.com>, Fenghua Yu <fenghua.yu@...el.com>, linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, linux-nvdimm@...ts.01.org, linux-fsdevel@...r.kernel.org, linux-mm@...ck.org, linux-kselftest@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org, kvm@...r.kernel.org, netdev@...r.kernel.org, bpf@...r.kernel.org, kexec@...ts.infradead.org, linux-bcache@...r.kernel.org, linux-mtd@...ts.infradead.org, devel@...verdev.osuosl.org, linux-efi@...r.kernel.org, linux-mmc@...r.kernel.org, linux-scsi@...r.kernel.org, target-devel@...r.kernel.org, linux-nfs@...r.kernel.org, ceph-devel@...r.kernel.org, linux-ext4@...r.kernel.org, linux-aio@...ck.org, io-uring@...r.kernel.org, linux-erofs@...ts.ozlabs.org, linux-um@...ts.infradead.org, linux-ntfs-dev@...ts.sourceforge.net, reiserfs-devel@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, linux-nilfs@...r.kernel.org, cluster-devel@...hat.com, ecryptfs@...r.kernel.org, linux-cifs@...r.kernel.org, linux-btrfs@...r.kernel.org, linux-afs@...ts.infradead.org, linux-rdma@...r.kernel.org, amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org, drbd-dev@...ts.linbit.com, linux-block@...r.kernel.org, xen-devel@...ts.xenproject.org, linux-cachefs@...hat.com, samba-technical@...ts.samba.org, intel-wired-lan@...ts.osuosl.org Subject: [PATCH RFC PKS/PMEM 25/58] fs/reiserfs: Utilize new kmap_thread() From: Ira Weiny <ira.weiny@...el.com> The kmap() calls in this FS are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call. Cc: Jan Kara <jack@...e.cz> Cc: "Theodore Ts'o" <tytso@....edu> Cc: Randy Dunlap <rdunlap@...radead.org> Cc: Alex Shi <alex.shi@...ux.alibaba.com> Signed-off-by: Ira Weiny <ira.weiny@...el.com> --- fs/reiserfs/journal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index e98f99338f8f..be8f56261e8c 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -4194,11 +4194,11 @@ static int do_journal_end(struct reiserfs_transaction_handle *th, int flags) SB_ONDISK_JOURNAL_SIZE(sb))); set_buffer_uptodate(tmp_bh); page = cn->bh->b_page; - addr = kmap(page); + addr = kmap_thread(page); memcpy(tmp_bh->b_data, addr + offset_in_page(cn->bh->b_data), cn->bh->b_size); - kunmap(page); + kunmap_thread(page); mark_buffer_dirty(tmp_bh); jindex++; set_buffer_journal_dirty(cn->bh); -- 2.28.0.rc0.12.gb6a658bd00c9
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