1IDR_FOR_EACH(9)         Basic Kernel Library Functions         IDR_FOR_EACH(9)
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NAME

6       idr_for_each - iterate through all stored pointers
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SYNOPSIS

9       int idr_for_each(struct idr * idp,
10                        int (*fn) (int id, void *p, void *data), void * data);
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ARGUMENTS

13       idp
14           idr handle
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16       fn
17           function to be called for each pointer
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19       data
20           data passed back to callback function
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DESCRIPTION

23       Iterate over the pointers registered with the given idr. The callback
24       function will be called for each pointer currently registered, passing
25       the id, the pointer and the data pointer passed to this function. It is
26       not safe to modify the idr tree while in the callback, so functions
27       such as idr_get_new and idr_remove are not allowed.
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29       We check the return of fn each time. If it returns anything other than
30       0, we break out and return that value.
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32       The caller must serialize idr_for_each vs idr_get_new and idr_remove.
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35Kernel Hackers Manual 3.10         June 2019                   IDR_FOR_EACH(9)
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