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authorJiri Kosina <jkosina@suse.com>2025-12-02 14:46:11 +0100
committerJiri Kosina <jkosina@suse.com>2025-12-02 14:46:11 +0100
commit7362b5b493102c6b71827c2da22117b475528f6d (patch)
tree62888e5fb3459077d2874c61bc8b378d7bf5c7da /fs/btrfs/export.c
parenteb41c955b05ea015275b3188b27b3960a95ae149 (diff)
parent06416555c883e3ffabcc62ad39617c23d6b2f012 (diff)
Merge branch 'for-6.19/nintendo' into for-linus
- switch to WQ_PERCPU workaueues (Marco Crivellari) - reduce potential initialization blocking time of hid-nintendo (Willy Huang)
Diffstat (limited to 'fs/btrfs/export.c')
-rw-r--r--fs/btrfs/export.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index d062ac521051..230d9326b685 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -23,7 +23,11 @@ static int btrfs_encode_fh(struct inode *inode, u32 *fh, int *max_len,
int type;
if (parent && (len < BTRFS_FID_SIZE_CONNECTABLE)) {
- *max_len = BTRFS_FID_SIZE_CONNECTABLE;
+ if (btrfs_root_id(BTRFS_I(inode)->root) !=
+ btrfs_root_id(BTRFS_I(parent)->root))
+ *max_len = BTRFS_FID_SIZE_CONNECTABLE_ROOT;
+ else
+ *max_len = BTRFS_FID_SIZE_CONNECTABLE;
return FILEID_INVALID;
} else if (len < BTRFS_FID_SIZE_NON_CONNECTABLE) {
*max_len = BTRFS_FID_SIZE_NON_CONNECTABLE;
@@ -45,6 +49,8 @@ static int btrfs_encode_fh(struct inode *inode, u32 *fh, int *max_len,
parent_root_id = btrfs_root_id(BTRFS_I(parent)->root);
if (parent_root_id != fid->root_objectid) {
+ if (*max_len < BTRFS_FID_SIZE_CONNECTABLE_ROOT)
+ return FILEID_INVALID;
fid->parent_root_objectid = parent_root_id;
len = BTRFS_FID_SIZE_CONNECTABLE_ROOT;
type = FILEID_BTRFS_WITH_PARENT_ROOT;