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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2021-12-23 06:39:50 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:09:19 +0300 |
| commit | 73b460977eb8782a769ff81200a8b40cf1a3a91d (patch) | |
| tree | 3de153b898d69fc2575edffa9446cca28e5af851 /fs/bcachefs/inode.c | |
| parent | e409999069928bc1da79f32e7adff88f981c65a5 (diff) | |
| download | linux-73b460977eb8782a769ff81200a8b40cf1a3a91d.tar.xz | |
bcachefs: Fix a null ptr deref in bch2_inode_delete_keys()
Similarly to bch2_btree_delete_range_trans(), bch2_inode_delete_keys()
may sometimes split compressed extents, and needs to pass in a disk
reservation.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Diffstat (limited to 'fs/bcachefs/inode.c')
| -rw-r--r-- | fs/bcachefs/inode.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/bcachefs/inode.c b/fs/bcachefs/inode.c index d9ccc7c063ac..104575734b96 100644 --- a/fs/bcachefs/inode.c +++ b/fs/bcachefs/inode.c @@ -4,6 +4,7 @@ #include "btree_key_cache.h" #include "bkey_methods.h" #include "btree_update.h" +#include "buckets.h" #include "error.h" #include "extents.h" #include "extent_update.h" @@ -588,6 +589,8 @@ static int bch2_inode_delete_keys(struct btree_trans *trans, int ret = 0; while (!ret || ret == -EINTR) { + struct disk_reservation disk_res = + bch2_disk_reservation_init(trans->c, 0); struct btree_iter iter; struct bkey_s_c k; struct bkey_i delete; @@ -630,8 +633,9 @@ static int bch2_inode_delete_keys(struct btree_trans *trans, } ret = bch2_trans_update(trans, &iter, &delete, 0) ?: - bch2_trans_commit(trans, NULL, NULL, + bch2_trans_commit(trans, &disk_res, NULL, BTREE_INSERT_NOFAIL); + bch2_disk_reservation_put(trans->c, &disk_res); err: offset = iter.pos.offset; bch2_trans_iter_exit(trans, &iter); |