Messages in this thread | | | Date | Mon, 03 Sep 2018 11:13:10 +0900 (JST) | Subject | Re: [PATCH v2] fs: Convert return type int to vm_fault_t | From | Ryusuke Konishi <> |
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Hi Souptick,
On Thu, 30 Aug 2018 16:33:52 -0700, Andrew Morton wrote: > On Thu, 30 Aug 2018 22:55:47 +0530 Souptick Joarder wrote: > >> Return type for fault handlers in ext4 and nilfs are >> changed to use vm_fault_t. >> >> Return type of block_page_mkwrite() is changed from >> int to vm_fault_t. The function signature of >> block_page_mkwrite() is changed to add one new parameter >> int *err. This will provide a way for caller functions >> to get error value along with return value and use it >> further. >> >> Return type of block_page_mkwrite_return() is also changed >> to use new vm_fault_t type. >> --- a/fs/nilfs2/file.c >> +++ b/fs/nilfs2/file.c >> @@ -51,13 +51,14 @@ int nilfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) >> return err; >> } >> >> -static int nilfs_page_mkwrite(struct vm_fault *vmf) >> +static vm_fault_t nilfs_page_mkwrite(struct vm_fault *vmf) > > nilfs_page_mkwrite() already has return type vm_fault_t in Linus's > kernel, due to the now-merged > fs-nilfs2-adding-new-return-type-vm_fault_t.patch. Looks like a simple > fix.
In the first patch in this thread, this return type change was excluded correctly for nilfs_page_mkwrite() though the changelog was inaccurate in that sense.
Please confirm your base point of the revised patch.
Regards, Ryusuke Konishi
> > I'm beginning to feel vm_fault_t exhaustion. Please remind me what > benefit we're going to get out of all this churn? > >> >> ... >>
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