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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2011-03-25 11:04:53 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-04-11 12:36:07 +0200 |
| commit | f1bb89fd9e5c6f3527ebaafcf57346fec19e4d5f (patch) | |
| tree | 494e54adea9b5a2f9cd0a4a66e2ed5b360b7783a /fs/devfs.c | |
| parent | 3efa8f7bed53dba8d9252d94233db36aac64b6ce (diff) | |
| download | barebox-f1bb89fd9e5c6f3527ebaafcf57346fec19e4d5f.tar.gz barebox-f1bb89fd9e5c6f3527ebaafcf57346fec19e4d5f.tar.xz | |
fs: implement flush function
Once we have caching in file functions we need a way to sync
the the underlying devices.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'fs/devfs.c')
| -rw-r--r-- | fs/devfs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/devfs.c b/fs/devfs.c index ddb3447673..f82fdddbc2 100644 --- a/fs/devfs.c +++ b/fs/devfs.c @@ -169,6 +169,16 @@ static int devfs_close(struct device_d *_dev, FILE *f) return 0; } +static int devfs_flush(struct device_d *_dev, FILE *f) +{ + struct cdev *cdev = f->inode; + + if (cdev->ops->flush) + return cdev->ops->flush(cdev); + + return 0; +} + static int partition_ioctl(struct cdev *cdev, int request, void *buf) { size_t offset; @@ -287,6 +297,7 @@ static struct fs_driver_d devfs_driver = { .lseek = devfs_lseek, .open = devfs_open, .close = devfs_close, + .flush = devfs_flush, .ioctl = devfs_ioctl, .opendir = devfs_opendir, .readdir = devfs_readdir, |