buf_dataptr
Get the address at which a buffer's data is stored; for iobufs, this must be set with buf_setdataptr(). See buf_map().
Declaration
uintptr_t buf_dataptr(buf_t bp);Parameters
- bp:
Buffer whose data pointer to retrieve.
Return Value
Data pointer; NULL if unset.
See Also
Buffers
buf_allocbuf_attrbuf_bawritebuf_bdwritebuf_biodonebuf_biowaitbuf_blknobuf_breadbuf_breadnbuf_brelsebuf_bwritebuf_callbackbuf_clearbuf_clear_redundancy_flagsbuf_clearflagsbuf_clonebuf_countbuf_create_shadowbuf_devicebuf_dirtyendbuf_dirtyoffbuf_drvdatabuf_errorbuf_flagsbuf_flushdirtyblksbuf_freebuf_fromcachebuf_fsprivatebuf_fuabuf_getblkbuf_geteblkbuf_invalblknobuf_invalidateblksbuf_iteratebuf_lblknobuf_mapbuf_markagedbuf_markcleanbuf_markdelayedbuf_markeintrbuf_markfuabuf_markinvalidbuf_markstaticbuf_meta_breadbuf_meta_breadnbuf_procbuf_rcredbuf_redundancy_flagsbuf_resetbuf_residbuf_set_redundancy_flagsbuf_setblknobuf_setcallbackbuf_setcountbuf_setdataptrbuf_setdevicebuf_setdirtyendbuf_setdirtyoffbuf_setdrvdatabuf_seterrorbuf_setflagsbuf_setfsprivatebuf_setlblknobuf_setresidbuf_setsizebuf_setuplbuf_setvnodebuf_shadowbuf_sizebuf_staticbuf_strategybuf_unmapbuf_uplbuf_uploffsetbuf_validbuf_vnodebuf_wcredbufattr_ioscheduledbufattr_markioscheduled