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Commit | Line | Data |
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3e0a1a19 GKH |
1 | From 0cbade024ba501313da3b7e5dd2a188a6bc491b5 Mon Sep 17 00:00:00 2001 |
2 | From: Liu Bo <bo.liu@linux.alibaba.com> | |
3 | Date: Thu, 18 Apr 2019 04:04:41 +0800 | |
4 | Subject: fuse: honor RLIMIT_FSIZE in fuse_file_fallocate | |
5 | ||
6 | From: Liu Bo <bo.liu@linux.alibaba.com> | |
7 | ||
8 | commit 0cbade024ba501313da3b7e5dd2a188a6bc491b5 upstream. | |
9 | ||
10 | fstests generic/228 reported this failure that fuse fallocate does not | |
11 | honor what 'ulimit -f' has set. | |
12 | ||
13 | This adds the necessary inode_newsize_ok() check. | |
14 | ||
15 | Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com> | |
16 | Fixes: 05ba1f082300 ("fuse: add FALLOCATE operation") | |
17 | Cc: <stable@vger.kernel.org> # v3.5 | |
18 | Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> | |
19 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
20 | ||
21 | --- | |
22 | fs/fuse/file.c | 7 +++++++ | |
23 | 1 file changed, 7 insertions(+) | |
24 | ||
25 | --- a/fs/fuse/file.c | |
26 | +++ b/fs/fuse/file.c | |
27 | @@ -2947,6 +2947,13 @@ static long fuse_file_fallocate(struct f | |
28 | } | |
29 | } | |
30 | ||
31 | + if (!(mode & FALLOC_FL_KEEP_SIZE) && | |
32 | + offset + length > i_size_read(inode)) { | |
33 | + err = inode_newsize_ok(inode, offset + length); | |
34 | + if (err) | |
35 | + return err; | |
36 | + } | |
37 | + | |
38 | if (!(mode & FALLOC_FL_KEEP_SIZE)) | |
39 | set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state); | |
40 |