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authorLiu Bo <bo.liu@linux.alibaba.com>2019-04-18 04:04:41 +0800
committerMiklos Szeredi <mszeredi@redhat.com>2019-04-24 17:05:06 +0200
commit0cbade024ba501313da3b7e5dd2a188a6bc491b5 (patch)
tree5766b4c3a874f5c58bf2ebc91baa9ae845c83f70
parent9de5be06d0a89ca97b5ab902694d42dfd2bb77d2 (diff)
downloadlinux-0cbade024ba501313da3b7e5dd2a188a6bc491b5.tar.bz2
fuse: honor RLIMIT_FSIZE in fuse_file_fallocate
fstests generic/228 reported this failure that fuse fallocate does not honor what 'ulimit -f' has set. This adds the necessary inode_newsize_ok() check. Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com> Fixes: 05ba1f082300 ("fuse: add FALLOCATE operation") Cc: <stable@vger.kernel.org> # v3.5 Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
-rw-r--r--fs/fuse/file.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 5428c81879b2..f811af4f6507 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -3044,6 +3044,13 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
}
}
+ if (!(mode & FALLOC_FL_KEEP_SIZE) &&
+ offset + length > i_size_read(inode)) {
+ err = inode_newsize_ok(inode, offset + length);
+ if (err)
+ return err;
+ }
+
if (!(mode & FALLOC_FL_KEEP_SIZE))
set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);