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authorLinus Torvalds <torvalds@linux-foundation.org>2024-04-06 19:14:18 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2024-04-06 19:14:18 +0300
commit9520c192e853bad2a0029f5ce00fa7774408efad (patch)
tree9b2b0db15a8b9bc669349fec0eacb026f72b3472 /fs
parent119c289409ddb9bca55074388f282ca67da67692 (diff)
parente23d7e82b707d1d0a627e334fb46370e4f772c11 (diff)
downloadlinux-9520c192e853bad2a0029f5ce00fa7774408efad.tar.xz
Merge tag 'xfs-6.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Chandan Babu: - Allow creating new links to special files which were not associated with a project quota * tag 'xfs-6.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: allow cross-linking special files without project quota
Diffstat (limited to 'fs')
-rw-r--r--fs/xfs/xfs_inode.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index ea48774f6b76..d55b42b2480d 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1301,8 +1301,19 @@ xfs_link(
*/
if (unlikely((tdp->i_diflags & XFS_DIFLAG_PROJINHERIT) &&
tdp->i_projid != sip->i_projid)) {
- error = -EXDEV;
- goto error_return;
+ /*
+ * Project quota setup skips special files which can
+ * leave inodes in a PROJINHERIT directory without a
+ * project ID set. We need to allow links to be made
+ * to these "project-less" inodes because userspace
+ * expects them to succeed after project ID setup,
+ * but everything else should be rejected.
+ */
+ if (!special_file(VFS_I(sip)->i_mode) ||
+ sip->i_projid != 0) {
+ error = -EXDEV;
+ goto error_return;
+ }
}
if (!resblks) {