FreeBSD Bugzilla – Attachment 248807 Details for
Bug 276002
nfscl: data corruption using both copy_file_range and mmap'd I/O
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[patch]
Force VOP_WRITE() to be synchronous and do not clear dirty bits afterwards
msync2.patch (text/plain), 750 bytes, created by
Rick Macklem
on 2024-02-28 03:18:13 UTC
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Description:
Force VOP_WRITE() to be synchronous and do not clear dirty bits afterwards
Filename:
MIME Type:
Creator:
Rick Macklem
Created:
2024-02-28 03:18:13 UTC
Size:
750 bytes
patch
obsolete
>--- sys/fs/nfsclient/nfs_clbio.c.msync 2024-02-17 06:58:08.741029000 -0800 >+++ sys/fs/nfsclient/nfs_clbio.c 2024-02-27 12:46:28.439030000 -0800 >@@ -335,11 +335,16 @@ ncl_putpages(struct vop_putpages_args *ap) > uio.uio_rw = UIO_WRITE; > uio.uio_td = td; > >- error = VOP_WRITE(vp, &uio, vnode_pager_putpages_ioflags(ap->a_sync), >+ error = VOP_WRITE(vp, &uio, vnode_pager_putpages_ioflags(ap->a_sync | VM_PAGER_PUT_SYNC), > cred); >+if (error != 0) printf("aft putpages=%d\n", error); > crfree(cred); > >+#ifdef notnow > if (error == 0 || !nfs_keep_dirty_on_error) { >+#else >+ if (error != 0 && !nfs_keep_dirty_on_error) { >+#endif > vnode_pager_undirty_pages(pages, rtvals, count - uio.uio_resid, > np->n_size - offset, npages * PAGE_SIZE); > }
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