On 2017/10/17 7:04, Jaegeuk Kim wrote: > On 10/16, Chao Yu wrote: >> Hi Jaegeuk, >> >> On 2017/10/13 7:15, Jaegeuk Kim wrote: >>> This patch returns an error number to quota_write in order for quota to handle >>> it correctly. >> >> We should return error number like __generic_file_write_iter, right? it >> needs to return written bytes if we have written one page or more, otherwise >> return error number feedbacked from write_begin. >> >> So how about reverting 4f31d26b0c17 ("f2fs: return wrong error number on >> f2fs_quota_write")? > > I thought like that, but realized the code change is somewhat different between > them. Hmm... main structure of codes here is copied from other file systems, is there the same problem in *_quota_write of other file systems? BTW, it looks making below judgment condition being useless. if (len == towrite) return 0; Thanks, > > Thanks, > >> >> Thanks, >> >>> >>> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> >>> --- >>> fs/f2fs/super.c | 5 ++++- >>> 1 file changed, 4 insertions(+), 1 deletion(-) >>> >>> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c >>> index 2feecf5e7f4c..840a0876005b 100644 >>> --- a/fs/f2fs/super.c >>> +++ b/fs/f2fs/super.c >>> @@ -1397,8 +1397,11 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type, >>> >>> err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, >>> &page, NULL); >>> - if (unlikely(err)) >>> + if (unlikely(err)) { >>> + if (len == towrite) >>> + return err; >>> break; >>> + } >>> >>> kaddr = kmap_atomic(page); >>> memcpy(kaddr + offset, data, tocopy); >>> > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Linux-f2fs-devel mailing list > Linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel >