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| author | Richard Weinberger <richard@nod.at> | 2013-08-04 19:23:51 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2013-09-07 10:38:29 +0200 |
| commit | 65984ff9d2179a97e5a11aaef1e86fdb276cfad5 (patch) | |
| tree | ee545bde7f3924570faa3fdd57b89c59ef13b7f9 | |
| parent | Linux 3.11 (diff) | |
| download | linux-65984ff9d2179a97e5a11aaef1e86fdb276cfad5.tar.xz linux-65984ff9d2179a97e5a11aaef1e86fdb276cfad5.zip | |
um: hostfs: Fix writeback
We have to implement ->release() and trigger writeback from it.
Otherwise we might lose dirty pages at munmap().
Signed-off-by: Richard Weinberger <richard@nod.at>
| -rw-r--r-- | fs/hostfs/hostfs_kern.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index cddb05217512..25437280a207 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -361,6 +361,13 @@ retry: return 0; } +static int hostfs_file_release(struct inode *inode, struct file *file) +{ + filemap_write_and_wait(inode->i_mapping); + + return 0; +} + int hostfs_fsync(struct file *file, loff_t start, loff_t end, int datasync) { struct inode *inode = file->f_mapping->host; @@ -386,7 +393,7 @@ static const struct file_operations hostfs_file_fops = { .write = do_sync_write, .mmap = generic_file_mmap, .open = hostfs_file_open, - .release = NULL, + .release = hostfs_file_release, .fsync = hostfs_fsync, }; |