Re: [PATCH v3 15/19] maple_tree: Document erase and allocations better
"Liam R. Howlett (Oracle)" <[email protected]>
| Newsgroups | org.kvack.linux-mm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <ufmfevzbrdg44ovtraidb3xt4ba6uneej6e5rkf5cmkkyp4ubi@3tvzvyj7kh3e> |
On 26/08/21 03:34PM, Rik van Riel wrote: > On Fri, 2026-08-21 at 15:26 -0400, Liam R. Howlett (Oracle) wrote: > > > > knowing one value within that range, or mtree_store() call with an > > entry of > > -NULL may be used to partially erase a range or many ranges at once. > > +NULL may be used to partially erase a range or many ranges at once. > > Note that > > +mtree_erase() may use GFP_KERNEL | __GFP_NOFAIL for allocations and > > cannot > > +fail, but may need to sleep - do not use mtree_erase() from a > > blocking context. > > > > Do you mean "from a context that cannot block" ? Ah, that's not clear. "Do not use mtree_erase() from a context that cannot tolerate blocking" Is that better? Thanks, Liam