From 2ee019fadcca343c3deea6a1767965bdf23fc3d0 Mon Sep 17 00:00:00 2001 From: Jeffle Xu Date: Thu, 25 Nov 2021 15:05:28 +0800 Subject: fuse: negotiate per inode DAX in FUSE_INIT Among the FUSE_INIT phase, client shall advertise per inode DAX if it's mounted with "dax=inode". Then server is aware that client is in per inode DAX mode, and will construct per-inode DAX attribute accordingly. Server shall also advertise support for per inode DAX. If server doesn't support it while client is mounted with "dax=inode", client will silently fallback to "dax=never" since "dax=inode" is advisory only. Signed-off-by: Jeffle Xu Reviewed-by: Vivek Goyal Signed-off-by: Miklos Szeredi --- fs/fuse/dax.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/fuse/dax.c') diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c index ff17bc7a0b6e..663270dc6e20 100644 --- a/fs/fuse/dax.c +++ b/fs/fuse/dax.c @@ -1349,7 +1349,7 @@ static bool fuse_should_enable_dax(struct inode *inode, unsigned int flags) return true; /* dax_mode is FUSE_DAX_INODE* */ - return flags & FUSE_ATTR_DAX; + return fc->inode_dax && (flags & FUSE_ATTR_DAX); } void fuse_dax_inode_init(struct inode *inode, unsigned int flags) -- cgit v1.2.3-71-gd317