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Date: Fri, 18 Mar 2022 13:29:23 +0800 From: JeffleXu <jefflexu@...ux.alibaba.com> To: dhowells@...hat.com, linux-cachefs@...hat.com, xiang@...nel.org, chao@...nel.org, linux-erofs@...ts.ozlabs.org, gregkh@...uxfoundation.org, tao.peng@...ux.alibaba.com, willy@...radead.org, linux-kernel@...r.kernel.org, joseph.qi@...ux.alibaba.com, bo.liu@...ux.alibaba.com, linux-fsdevel@...r.kernel.org, luodaowen.backend@...edance.com, eguan@...ux.alibaba.com, gerry@...ux.alibaba.com, torvalds@...ux-foundation.org Subject: Re: [Linux-cachefs] [PATCH v5 17/22] erofs: implement fscache-based data read for non-inline layout On 3/17/22 2:18 PM, Gao Xiang wrote: > On Wed, Mar 16, 2022 at 09:17:18PM +0800, Jeffle Xu wrote: >> This patch implements the data plane of reading data from bootstrap blob >> file over fscache for non-inline layout. >> >> Be noted that compressed layout is not supported yet. >> >> Signed-off-by: Jeffle Xu <jefflexu@...ux.alibaba.com> >> --- >> fs/erofs/fscache.c | 94 +++++++++++++++++++++++++++++++++++++++++++++ >> fs/erofs/inode.c | 6 ++- >> fs/erofs/internal.h | 1 + >> 3 files changed, 100 insertions(+), 1 deletion(-) >> >> diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c >> index 654414aa87ad..df56562f33c4 100644 >> --- a/fs/erofs/fscache.c >> +++ b/fs/erofs/fscache.c >> @@ -4,6 +4,12 @@ >> */ >> #include "internal.h" >> >> +struct erofs_fscache_map { >> + struct erofs_fscache_context *m_ctx; >> + erofs_off_t m_pa, m_la, o_la; >> + u64 m_llen; > > Can we directly use "struct erofs_map_blocks map"? > So "erofs_fscache_get_map" can be avoided then. OK, the extra fields will be folded into "struct erofs_map_blocks map". -- Thanks, Jeffle
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