Re: [linux-next:master] BUILD REGRESSION 8cb8311e95e3bb58bd84d6350365f14a718faa6d
flat view
From: Andrew Morton <akpm@linux-foundation.org>
Date: 2022-05-25 22:20:11
Also in:
alsa-devel, amd-gfx, bpf, dri-devel, kvm, linux-arm-kernel, linux-fbdev, linux-mm, linux-omap, linux-pci, linux-rdma, linux-riscv, linux-staging, netdev
On Wed, 25 May 2022 23:07:35 +0100 Jessica Clarke [off-list ref] wrote:
This is i386, so an unsigned long is 32-bit, but i_blocks is a blkcnt_t i.e. a u64, which makes the shift without a cast of the LHS fishy.
Ah, of course, thanks. I remember 32 bits ;)
--- a/mm/shmem.c~mm-shmemc-suppress-shift-warning
+++ a/mm/shmem.c@@ -1945,7 +1945,7 @@ alloc_nohuge: spin_lock_irq(&info->lock); info->alloced += folio_nr_pages(folio); - inode->i_blocks += BLOCKS_PER_PAGE << folio_order(folio); + inode->i_blocks += (blkcnt_t)BLOCKS_PER_PAGE << folio_order(folio); shmem_recalc_inode(inode); spin_unlock_irq(&info->lock); alloced = true;
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