June 2008 - Darwin-kernel - lists.apple.com

Re: filesystem mount event
by Quinn 30 Jun '08

30 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… At 13:30 +0800 30/6/08, ªöF wrote: Does anybody know how to get the notification when a file system mounted? >From what context? From user space there are a variety of ways to do this (kNotifyVFSMount, Disk Arb, File Manager, and so on). From kernel code, it's tricky. This email sent to site_archiver(a)lists.apple.com

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filesystem mount event
by 华哥 30 Jun '08

30 Jun '08

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Re: mmap call to filesystem
by Terry Lambert 30 Jun '08

30 Jun '08

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Re: mmap call to filesystem
by Terry Lambert 30 Jun '08

30 Jun '08

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Re: mmap call to filesystem
by Michael Smith 29 Jun '08

29 Jun '08

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Re: mmap call to filesystem
by Terry Lambert 29 Jun '08

29 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com 220 #if 3777787 221 /* 222 * Since the hardware currently does not support writing without 223 * read-before-write, or execution-without-read, if the request is 224 * for write or execute access, we must imply read access as well; 225 * otherwise programs expecting this to work will fail to operate. 226 */ 227 if (prot & (VM_PROT_EXECUTE | VM_PROT_WRITE)) 228 prot |= VM_PROT_READ; 229 #endif /* radar 3777787 */ 230 380 if (fp->f_fglob->fg_flag & FREAD) 381 maxprot |= VM_PROT_READ; 382 else if (prot & PROT_READ) { 383 (void)vnode_put(vp); 384 error = EACCES; 385 goto bad; 386 } _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: mmap call to filesystem
by shailesh jain 29 Jun '08

29 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type:references; bh=GYPJkkmchza0jv0zxsdCD6hZHng22bJPP9sGnPencSw=; b=mIhR2LMiQoaGKeluGNXKRiEyQHq4WSf4YlWRDG4juwcbi/7XLVMHvpT7woSqcvNDVw KPlSbm9/3NeqMJS2uw9x13bx6nGZ//cLQTF9cDD/iHkovXTaSm1o9HTKNR92EtzBn/cC o2CSDbIdZAOttwxriMNb+KJQEE+zQUelJqljA= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:references; b=Xz12SqAPnUaIDEkSTIqcoUj9p8nyxZYvEzmc3Op4ec+WQK25M6RWY+Z7gghFtr85VV iaeIHP04aIDTG+l+a+KpV/iWXsuLbWC9jaA6/DmiYscIzVMUjX/JDsjax/tSwYgp09oQ fEUeJ3BnoeW+tc4xJ1WXYiu+Tk36C85kcQZVQ= 220 #if 3777787 221 /* 222 * Since the hardware currently does not support writing without 223 * read-before-write, or execution-without-read, if the request is 224 * for write or execute access, we must imply read access as well; 225 * otherwise programs expecting this to work will fail to operate. 226 */ 227 if (prot & (VM_PROT_EXECUTE | VM_PROT_WRITE)) 228 prot |= VM_PROT_READ; 229 #endif /* radar 3777787 */ 230 380 if (fp->f_fglob->fg_flag & FREAD) 381 maxprot |= VM_PROT_READ; 382 else if (prot & PROT_READ) { 383 (void)vnode_put(vp); 384 error = EACCES; 385 goto bad; 386 } _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: mmap call to filesystem
by Michael Smith 29 Jun '08

29 Jun '08

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Re: mmap call to filesystem
by shailesh jain 29 Jun '08

29 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type:references; bh=YWtoKHueQWGcBhxh94aCC18XSOjuZh7ZmKdzQIZ0co4=; b=iNQf3Q0RBrH2K3SVbO7hkQ0PiEf6ByJ6s+yaX5E25WFAylpaTawRlvac5IFZ6i7PfA RQ/bnL9ZEnmFe3jlF372Yc+nHJZjfzcZblLHD1c4OOeNshu810JCrwUknoxmlJ/CvZyA wGvmmQt28Yx7NT2VblTIB/2gr7noVvaTv+VGE= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:references; b=hFIFLJa9PtuJNoL3aqhYbyZWHLPydaJaiDB310dBjNQgGGsKrRtR5ruE4q30tHmY3n bWFzXQboVuXCL/QnF7mlfN1FLqU4I52XGT00SkUEzIcbuqs3TmEG2YrWLWAF551gcBMH T71xbA8adR9eKgYffTJmS4jtZwLRqWdo106kM= _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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mmap call to filesystem
by shailesh jain 29 Jun '08

29 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:mime-version:content-type; bh=BYf4T2767y5+1QCzweQZg/MVxDUZJ1wJu6aZzQQmHiw=; b=N4rFkG4haS4epWjlH0UvvByDcChciF0lEnLLzWBmkYK5eHP9UtSKhB2BbB/NTKL21K UggWSqQrrmkQNshUvOZBHTqrDtoThshaUf8+Xo6hf+aXZEQojwR4i9GyGnc5VwX75mxW 7zbWui+AMQZpcEgCJSceQ/L+aW3QDfdXKqX3U= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=rRxy4G40ExO9motPxsFugBAQp+Fi535TW3mk/+NbvsQwy5cXlqurnkQQNrGGkVRTgW VoSEdr1GH2LA66icTxchN89ACjY+dSbdUsyhfgJ0o+SaEbTHPUq2FMfMa9O+uw5WRy1O 7wC9uJbD4Ki35IfCOnBQSTZHie+h6JKp/cDc0= 1286 error = VNOP_MMAP(vp, flags, vfs_context_current()); 1287 1288 if (error != EPERM) 1289 error = 0; ...... if ((uap->share == MAP_SHARED )|| (uap->share == MAP_PRIVATE )) { ret = mmap(curp, &newargs, &addr); _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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