[PATCH AUTOSEL 5.19 01/38] fs/ntfs3: Fix work with fragmented xattr

[Sasha Levin]

From: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>

[ Upstream commit 42f86b1226a42bfc79a7125af435432ad4680a32 ]

In some cases xattr is too fragmented,
so we need to load it before writing.

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/ntfs3/xattr.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 5e0e0280e70d..d2337ee0b7d6 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -118,7 +118,7 @@ static int ntfs_read_ea(struct ntfs_inode *ni, struct EA_FULL **ea,
 
 		run_init(&run);
 
-		err = attr_load_runs(attr_ea, ni, &run, NULL);
+		err = attr_load_runs_range(ni, ATTR_EA, NULL, 0, &run, 0, size);
 		if (!err)
 			err = ntfs_read_run_nb(sbi, &run, 0, ea_p, size, NULL);
 		run_close(&run);
@@ -444,6 +444,11 @@ static noinline int ntfs_set_ea(struct inode *inode, const char *name,
 		/* Delete xattr, ATTR_EA */
 		ni_remove_attr_le(ni, attr, mi, le);
 	} else if (attr->non_res) {
+		err = attr_load_runs_range(ni, ATTR_EA, NULL, 0, &ea_run, 0,
+					   size);
+		if (err)
+			goto out;
+
 		err = ntfs_sb_write_run(sbi, &ea_run, 0, ea_all, size, 0);
 		if (err)
 			goto out;
-- 
2.35.1