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| author | Martin Brandenburg <martin@omnibond.com> | 2018-12-14 15:24:43 -0500 |
|---|---|---|
| committer | Mike Marshall <hubcap@omnibond.com> | 2019-05-03 14:32:38 -0400 |
| commit | 52e2d0a3804c095775b178d6b0707ef6ac8e6d04 (patch) | |
| tree | eff70498b71911fbceb5ecd3c87b81b4e0517edc /fs/orangefs/file.c | |
| parent | 90fc07065a3505e5a874c5854fd6176beb545e08 (diff) | |
| download | linux-52e2d0a3804c095775b178d6b0707ef6ac8e6d04.tar.gz linux-52e2d0a3804c095775b178d6b0707ef6ac8e6d04.tar.xz | |
orangefs: write range tracking
Attach the actual range of bytes written to plus the responsible uid/gid
to each dirty page. This information must be sent to the server when
the page is written out.
Now write_begin, page_mkwrite, and invalidatepage keep up with this
information. There are several conditions where they must write out the
page immediately to store the new range. Two non-contiguous ranges
cannot be stored on a single page.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Diffstat (limited to 'fs/orangefs/file.c')
| -rw-r--r-- | fs/orangefs/file.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c index 26d8ff410b0a..f409ac5d3410 100644 --- a/fs/orangefs/file.c +++ b/fs/orangefs/file.c @@ -46,8 +46,8 @@ static int flush_racache(struct inode *inode) * Post and wait for the I/O upcall to finish */ ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inode, - loff_t *offset, struct iov_iter *iter, - size_t total_size, loff_t readahead_size) + loff_t *offset, struct iov_iter *iter, size_t total_size, + loff_t readahead_size, struct orangefs_write_range *wr) { struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); struct orangefs_khandle *handle = &orangefs_inode->refn.khandle; @@ -85,6 +85,10 @@ populate_shared_memory: new_op->upcall.req.io.buf_index = buffer_index; new_op->upcall.req.io.count = total_size; new_op->upcall.req.io.offset = *offset; + if (type == ORANGEFS_IO_WRITE && wr) { + new_op->upcall.uid = from_kuid(&init_user_ns, wr->uid); + new_op->upcall.gid = from_kgid(&init_user_ns, wr->gid); + } gossip_debug(GOSSIP_FILE_DEBUG, "%s(%pU): offset: %llu total_size: %zd\n", @@ -329,7 +333,7 @@ static vm_fault_t orangefs_fault(struct vm_fault *vmf) static const struct vm_operations_struct orangefs_file_vm_ops = { .fault = orangefs_fault, .map_pages = filemap_map_pages, - .page_mkwrite = filemap_page_mkwrite, + .page_mkwrite = orangefs_page_mkwrite, }; /* |