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IDA_PRE_GET(9) Basic Kernel Library Functions IDA_PRE_GET(9)

NAME

ida_pre_get - reserve resources for ida allocation

SYNOPSIS

int ida_pre_get(struct ida * ida, gfp_t gfp_mask);

ARGUMENTS

ida
ida handle

gfp_mask

memory allocation flag

DESCRIPTION

This function should be called prior to locking and calling the following function. It preallocates enough memory to satisfy the worst possible allocation.

If the system is REALLY out of memory this function returns 0, otherwise 1.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.