diff options
| author | Andreas Gruenbacher <agruenba@redhat.com> | 2023-10-20 01:32:15 +0200 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 07:19:21 -0500 |
| commit | 17eba0be94cebced190fee2742e383ad03094d07 (patch) | |
| tree | 942fe0826c2240eb76f27e511383674fa135c793 | |
| parent | d1a71694e0260c0a9beb623aaab15201fc65fb66 (diff) | |
gfs2: Add metapath_dibh helper
[ Upstream commit 92099f0c92270c8c7a79e6bc6e0312ad248ea331 ]
Add a metapath_dibh() helper for extracting the inode's buffer head from
a metapath.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Stable-dep-of: faddeb848305 ("gfs2: Fix use-after-free in iomap inline data write path")
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/gfs2/bmap.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index f7d51dd6559c..1e0e350b5a5a 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -318,6 +318,12 @@ static void gfs2_metapath_ra(struct gfs2_glock *gl, __be64 *start, __be64 *end) } } +static inline struct buffer_head * +metapath_dibh(struct metapath *mp) +{ + return mp->mp_bh[0]; +} + static int __fillup_metapath(struct gfs2_inode *ip, struct metapath *mp, unsigned int x, unsigned int h) { @@ -662,7 +668,7 @@ static int __gfs2_iomap_alloc(struct inode *inode, struct iomap *iomap, { struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_sbd *sdp = GFS2_SB(inode); - struct buffer_head *dibh = mp->mp_bh[0]; + struct buffer_head *dibh = metapath_dibh(mp); u64 bn; unsigned n, i, blks, alloced = 0, iblks = 0, branch_start = 0; size_t dblks = iomap->length >> inode->i_blkbits; |