Re: [f2fs-dev] Use of FGP_NOFS in f2fs
Jiucheng Xu via Linux-f2fs-devel <[email protected]>
| Newsgroups | net.sourceforge.lists.linux-f2fs-devel |
|---|---|
| Message-ID | <[email protected]> |
On 6/25/2026 3:17 AM, Matthew Wilcox wrote: > [ EXTERNAL EMAIL ] > > Hi Jiucheng, > > I am trying to remove FGP_NOFS from the kernel and the last remaining > user was added by you last year in commit 2308de27c03d. I'm trying to > understand why. Did you see an actual problem if you do not use it, > or was it theoretical? The commit message says "to avoid potential > deadlock issues", but it's not clear to me whether you know they are > there, or only think they are there. > > I'd really like to understand what the issues are as the normal issues > which make calling into the filesystem (holding another folio locked, > holding a mutex relied upon by reclaim) don't seem to be present. > So if there is something, I'm not sure what it is. Hi Matthew, The FGP_NOFS flag was suggested by Chao and not adding it might lead to deadlock issues. @Chao could you explain this for Matthew? _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel