pmemblk_set_error3
Block management functions
Part of pmemblk_set_zero(3).
Usage
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#include <libpmemblk.h>int pmemblk_set_zero(PMEMblkpool *pbp, long long blockno);int pmemblk_set_error(PMEMblkpool *pbp, long long blockno);
Overview
The pmemblk_set_zero() function writes zeros to block number blockno in persistent memory resident array of blocks pbp. Using this function is faster than actually writing a block of zeros since libpmemblk(7) uses metadata to indicate the block should read back as zero.
The pmemblk_set_error() function sets the error state for block number blockno in persistent memory resident array of blocks pbp. A block in the error state returns errno EIO when read. Writing the block clears the error state and returns the block to normal use.
Return value
On success, pmemblk_set_zero() and pmemblk_set_error() return 0. On error, they return -1 and set errno appropriately.
Releases
4 releases since Debian 10 (Buster); the text changed 3 times.