diff options
| author | David Howells <dhowells@redhat.com> | 2017-03-16 16:27:45 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-20 10:07:24 +0100 |
| commit | 7286fad1570444b924568b13994843ab28b55dd4 (patch) | |
| tree | 4d8b345c260ffa14a76dc02f365e99187f8332ec | |
| parent | eaaad7646d3de73ca30653e635261827242be124 (diff) | |
afs: Flush outstanding writes when an fd is closed
[ Upstream commit 58fed94dfb17e89556b5705f20f90e5b2971b6a1 ]
Flush outstanding writes in afs when an fd is closed. This is what NFS and
CIFS do.
Reported-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/afs/file.c | 1 | ||||
| -rw-r--r-- | fs/afs/internal.h | 1 | ||||
| -rw-r--r-- | fs/afs/write.c | 14 |
3 files changed, 16 insertions, 0 deletions
diff --git a/fs/afs/file.c b/fs/afs/file.c index 6344aee4ac4b..72372970725b 100644 --- a/fs/afs/file.c +++ b/fs/afs/file.c @@ -29,6 +29,7 @@ static int afs_readpages(struct file *filp, struct address_space *mapping, const struct file_operations afs_file_operations = { .open = afs_open, + .flush = afs_flush, .release = afs_release, .llseek = generic_file_llseek, .read_iter = generic_file_read_iter, diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 6961f6175529..67c63aa86b25 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -752,6 +752,7 @@ extern int afs_writepages(struct address_space *, struct writeback_control *); extern void afs_pages_written_back(struct afs_vnode *, struct afs_call *); extern ssize_t afs_file_write(struct kiocb *, struct iov_iter *); extern int afs_writeback_all(struct afs_vnode *); +extern int afs_flush(struct file *, fl_owner_t); extern int afs_fsync(struct file *, loff_t, loff_t, int); diff --git a/fs/afs/write.c b/fs/afs/write.c index 26d809aee78b..4ab108e6a3cd 100644 --- a/fs/afs/write.c +++ b/fs/afs/write.c @@ -736,6 +736,20 @@ out: } /* + * Flush out all outstanding writes on a file opened for writing when it is + * closed. + */ +int afs_flush(struct file *file, fl_owner_t id) +{ + _enter(""); + + if ((file->f_mode & FMODE_WRITE) == 0) + return 0; + + return vfs_fsync(file, 0); +} + +/* * notification that a previously read-only page is about to become writable * - if it returns an error, the caller will deliver a bus error signal */ |