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| author | Miklos Szeredi <mszeredi@suse.cz> | 2009-04-09 17:37:53 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2009-04-09 17:37:53 +0200 |
| commit | 3121bfe7631126d1b13064855ac2cfa164381bb0 (patch) | |
| tree | 18cb4b7eba9783682df5d8c2799f87cbe55ca610 /fs | |
| parent | ce60a2f15764f296b0467960759351702c7d2986 (diff) | |
| download | lwn-3121bfe7631126d1b13064855ac2cfa164381bb0.tar.gz lwn-3121bfe7631126d1b13064855ac2cfa164381bb0.zip | |
fuse: fix "direct_io" private mmap
MAP_PRIVATE mmap could return stale data from the cache for
"direct_io" files. Fix this by flushing the cache on mmap.
Found with a slightly modified fsx-linux.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fuse/file.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 0946861b10b7..06f30e965676 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1298,6 +1298,8 @@ static int fuse_direct_mmap(struct file *file, struct vm_area_struct *vma) if (vma->vm_flags & VM_MAYSHARE) return -ENODEV; + invalidate_inode_pages2(file->f_mapping); + return generic_file_mmap(file, vma); } |