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authorAlan Stern <stern@rowland.harvard.edu>2007-03-15 22:51:28 +0300
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-03-16 01:29:26 +0300
commite7b0d26a86943370c04d6833c6edba2a72a6e240 (patch)
tree696e696176a1e72abb80afa6112fc057b39bf86b /Makefile
parentd9a9cdfb078d755e648d53ec25b7370f84ee5729 (diff)
downloadlinux-e7b0d26a86943370c04d6833c6edba2a72a6e240.tar.xz
[PATCH] sysfs: reinstate exclusion between method calls and attribute unregistration
This patch (as869) reinstates the mutual exclusion between sysfs attribute method calls and attribute unregistration. The previously-reported deadlocks have been fixed, and this exclusion is by far the simplest way to avoid races during driver unbinding. The check for orphaned read-buffers has been moved down slightly, so that the remainder of a partially-read buffer will still be available to userspace even after the attribute has been unregistered. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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