diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-03-19 16:36:24 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-03-19 16:36:24 -0700 |
commit | 1e744c938da7067c9c639e0a2ae55d4d8fb35b28 (patch) | |
tree | 88a044d73d757204ab6bfb0b47bb55a9d3279d3a /fs/fuse/dev.c | |
parent | e409ac35507fb6aa434c0508c6d75ad7f4755d68 (diff) | |
parent | 94e4fe2cab3d43b3ba7c3f721743006a8c9d913a (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
"This fixes bugs in zero-copy splice to the fuse device"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: explicitly set /dev/fuse file's private_data
fuse: set stolen page uptodate
fuse: notify: don't move pages
Diffstat (limited to 'fs/fuse/dev.c')
-rw-r--r-- | fs/fuse/dev.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index ed19a7d622fa..39706c57ad3c 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -890,8 +890,8 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep) newpage = buf->page; - if (WARN_ON(!PageUptodate(newpage))) - return -EIO; + if (!PageUptodate(newpage)) + SetPageUptodate(newpage); ClearPageMappedToDisk(newpage); @@ -1353,6 +1353,17 @@ static ssize_t fuse_dev_do_read(struct fuse_conn *fc, struct file *file, return err; } +static int fuse_dev_open(struct inode *inode, struct file *file) +{ + /* + * The fuse device's file's private_data is used to hold + * the fuse_conn(ection) when it is mounted, and is used to + * keep track of whether the file has been mounted already. + */ + file->private_data = NULL; + return 0; +} + static ssize_t fuse_dev_read(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) { @@ -1797,6 +1808,9 @@ copy_finish: static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code, unsigned int size, struct fuse_copy_state *cs) { + /* Don't try to move pages (yet) */ + cs->move_pages = 0; + switch (code) { case FUSE_NOTIFY_POLL: return fuse_notify_poll(fc, size, cs); @@ -2217,6 +2231,7 @@ static int fuse_dev_fasync(int fd, struct file *file, int on) const struct file_operations fuse_dev_operations = { .owner = THIS_MODULE, + .open = fuse_dev_open, .llseek = no_llseek, .read = do_sync_read, .aio_read = fuse_dev_read, |