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    Subject[PATCH 04/10] fuse: honor AT_STATX_DONT_SYNC
    Date
    The description of this flag says "Don't sync attributes with the server".
    In other words: always use the attributes cached in the kernel and don't
    send network or local messages to refresh the attributes.

    Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
    ---
    fs/fuse/dir.c | 9 +++++----
    1 file changed, 5 insertions(+), 4 deletions(-)

    diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
    index 622081b97426..d2d1dbe1ef75 100644
    --- a/fs/fuse/dir.c
    +++ b/fs/fuse/dir.c
    @@ -924,12 +924,13 @@ static int fuse_do_getattr(struct inode *inode, struct kstat *stat,
    }

    static int fuse_update_get_attr(struct inode *inode, struct file *file,
    - struct kstat *stat)
    + struct kstat *stat, unsigned int flags)
    {
    struct fuse_inode *fi = get_fuse_inode(inode);
    int err = 0;

    - if (time_before64(fi->i_time, get_jiffies_64())) {
    + if (!(flags & AT_STATX_DONT_SYNC) &&
    + time_before64(fi->i_time, get_jiffies_64())) {
    forget_all_cached_acls(inode);
    err = fuse_do_getattr(inode, stat, file);
    } else if (stat) {
    @@ -943,7 +944,7 @@ static int fuse_update_get_attr(struct inode *inode, struct file *file,

    int fuse_update_attributes(struct inode *inode, struct file *file)
    {
    - return fuse_update_get_attr(inode, file, NULL);
    + return fuse_update_get_attr(inode, file, NULL, 0);
    }

    int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
    @@ -1782,7 +1783,7 @@ static int fuse_getattr(const struct path *path, struct kstat *stat,
    if (!fuse_allow_current_process(fc))
    return -EACCES;

    - return fuse_update_get_attr(inode, NULL, stat);
    + return fuse_update_get_attr(inode, NULL, stat, flags);
    }

    static const struct inode_operations fuse_dir_inode_operations = {
    --
    2.5.5
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