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I would like to know who wakes the kthread daemon up, when a read from the SD card is done using vfs_read. According to the code flow the kthreadd will ...
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- 09-07-2012 #1
- Join Date
- Sep 2012
Who wakes the kthreadd daemon during SD card read?
The issue I am facing here is although the vfs_read to the SD card is called by the USB Mass Storage driver, the read does not proceed to the mmc_queue_thread. This leads to old contents of the SD card being shown on PC.
The kernel stack after vfs_read generated from sdhci_send_command() is attached.