fuse: allow ctime flushing to userspace
The patch extends fuse_setattr_in, and extends the flush procedure (fuse_flush_times()) called on ->write_inode() to send the ctime as well as mtime. Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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@ -1597,7 +1597,7 @@ static void fuse_setattr_fill(struct fuse_conn *fc, struct fuse_req *req,
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/*
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* Flush inode->i_mtime to the server
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*/
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int fuse_flush_mtime(struct inode *inode, struct fuse_file *ff)
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int fuse_flush_times(struct inode *inode, struct fuse_file *ff)
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{
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struct fuse_conn *fc = get_fuse_conn(inode);
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struct fuse_req *req;
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@ -1612,9 +1612,14 @@ int fuse_flush_mtime(struct inode *inode, struct fuse_file *ff)
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memset(&inarg, 0, sizeof(inarg));
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memset(&outarg, 0, sizeof(outarg));
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inarg.valid |= FATTR_MTIME;
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inarg.valid = FATTR_MTIME;
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inarg.mtime = inode->i_mtime.tv_sec;
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inarg.mtimensec = inode->i_mtime.tv_nsec;
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if (fc->minor >= 23) {
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inarg.valid |= FATTR_CTIME;
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inarg.ctime = inode->i_ctime.tv_sec;
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inarg.ctimensec = inode->i_ctime.tv_nsec;
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}
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if (ff) {
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inarg.valid |= FATTR_FH;
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inarg.fh = ff->fh;
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@ -1691,7 +1691,7 @@ int fuse_write_inode(struct inode *inode, struct writeback_control *wbc)
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int err;
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ff = __fuse_write_file_get(fc, fi);
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err = fuse_flush_mtime(inode, ff);
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err = fuse_flush_times(inode, ff);
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if (ff)
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fuse_file_put(ff, 0);
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@ -889,7 +889,7 @@ int fuse_dev_release(struct inode *inode, struct file *file);
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bool fuse_write_update_size(struct inode *inode, loff_t pos);
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int fuse_flush_mtime(struct inode *inode, struct fuse_file *ff);
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int fuse_flush_times(struct inode *inode, struct fuse_file *ff);
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int fuse_write_inode(struct inode *inode, struct writeback_control *wbc);
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int fuse_do_setattr(struct inode *inode, struct iattr *attr,
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@ -98,6 +98,8 @@
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* - add FUSE_WRITEBACK_CACHE
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* - add time_gran to fuse_init_out
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* - add reserved space to fuse_init_out
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* - add FATTR_CTIME
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* - add ctime and ctimensec to fuse_setattr_in
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*/
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#ifndef _LINUX_FUSE_H
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@ -193,6 +195,7 @@ struct fuse_file_lock {
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#define FATTR_ATIME_NOW (1 << 7)
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#define FATTR_MTIME_NOW (1 << 8)
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#define FATTR_LOCKOWNER (1 << 9)
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#define FATTR_CTIME (1 << 10)
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/**
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* Flags returned by the OPEN request
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@ -440,10 +443,10 @@ struct fuse_setattr_in {
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uint64_t lock_owner;
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uint64_t atime;
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uint64_t mtime;
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uint64_t unused2;
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uint64_t ctime;
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uint32_t atimensec;
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uint32_t mtimensec;
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uint32_t unused3;
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uint32_t ctimensec;
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uint32_t mode;
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uint32_t unused4;
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uint32_t uid;
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