diff options
| author |   Jeffle Xu <jefflexu@linux.alibaba.com> | 2021-11-25 15:05:29 +0800 |
|---|---|---|
| committer |   Miklos Szeredi <mszeredi@redhat.com> | 2021-12-14 11:09:37 +0100 |
| commit | c3cb6f935e322fa183988032e318b293d9e4fe53 (patch) | |
| tree | 0c8d38c2b190aa597aa30ff98a9324f926bce7f5 /fs/fuse/inode.c | |
| parent | fuse: negotiate per inode DAX in FUSE_INIT (diff) | |
| download | linux-dev-c3cb6f935e322fa183988032e318b293d9e4fe53.tar.xz linux-dev-c3cb6f935e322fa183988032e318b293d9e4fe53.zip | |
fuse: mark inode DONT_CACHE when per inode DAX hint changes
When the per inode DAX hint changes while the file is still *opened*, it
is quite complicated and maybe fragile to dynamically change the DAX
state.
Hence mark the inode and corresponding dentries as DONE_CACHE once the
per inode DAX hint changes, so that the inode instance will be evicted
and freed as soon as possible once the file is closed and the last
reference to the inode is put. And then when the file gets reopened next
time, the new instantiated inode will reflect the new DAX state.
In summary, when the per inode DAX hint changes for an *opened* file, the
DAX state of the file won't be updated until this file is closed and
reopened later.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/fuse/inode.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index c256fd82af3c..ee846ce371d8 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -301,6 +301,9 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr, if (inval) invalidate_inode_pages2(inode->i_mapping); } + + if (IS_ENABLED(CONFIG_FUSE_DAX)) + fuse_dax_dontcache(inode, attr->flags); } static void fuse_init_inode(struct inode *inode, struct fuse_attr *attr) |