diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2018-12-19 14:07:58 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-09 16:16:44 +0100 |
| commit | 40a19e58f205bc7570b5f673f00a628279e79cfa (patch) | |
| tree | ac3afd0c3001fe71573b253adfb27e4ad2998a51 /include | |
| parent | 2eb64177787db8b5699dd05b9ba5c1bc2f7ece95 (diff) | |
ext4: force inode writes when nfsd calls commit_metadata()
commit fde872682e175743e0c3ef939c89e3c6008a1529 upstream.
Some time back, nfsd switched from calling vfs_fsync() to using a new
commit_metadata() hook in export_operations(). If the file system did
not provide a commit_metadata() hook, it fell back to using
sync_inode_metadata(). Unfortunately doesn't work on all file
systems. In particular, it doesn't work on ext4 due to how the inode
gets journalled --- the VFS writeback code will not always call
ext4_write_inode().
So we need to provide our own ext4_nfs_commit_metdata() method which
calls ext4_write_inode() directly.
Google-Bug-Id: 121195940
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/trace/events/ext4.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 09c71e9aaebf..215668b14f61 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -223,6 +223,26 @@ TRACE_EVENT(ext4_drop_inode, (unsigned long) __entry->ino, __entry->drop) ); +TRACE_EVENT(ext4_nfs_commit_metadata, + TP_PROTO(struct inode *inode), + + TP_ARGS(inode), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + ), + + TP_printk("dev %d,%d ino %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino) +); + TRACE_EVENT(ext4_mark_inode_dirty, TP_PROTO(struct inode *inode, unsigned long IP), |