On Wed 30-12-20 11:38:27, Yi Li wrote: > 1: ext4_iget/ext4_find_extent never returns NULL, use IS_ERR > instead of IS_ERR_OR_NULL to fix this. > > 2: ext4_fc_replay_inode should set the inode to NULL when IS_ERR. > and go to call iput properly. > > Signed-off-by: Yi Li <[email protected]>
Thanks for the patch! It looks good to me. You can add: Reviewed-by: Jan Kara <[email protected]> Honza > --- > fs/ext4/fast_commit.c | 23 ++++++++++++----------- > 1 file changed, 12 insertions(+), 11 deletions(-) > > diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c > index 4fcc21c25e79..6b5489273c85 100644 > --- a/fs/ext4/fast_commit.c > +++ b/fs/ext4/fast_commit.c > @@ -1318,14 +1318,14 @@ static int ext4_fc_replay_unlink(struct super_block > *sb, struct ext4_fc_tl *tl) > entry.len = darg.dname_len; > inode = ext4_iget(sb, darg.ino, EXT4_IGET_NORMAL); > > - if (IS_ERR_OR_NULL(inode)) { > + if (IS_ERR(inode)) { > jbd_debug(1, "Inode %d not found", darg.ino); > return 0; > } > > old_parent = ext4_iget(sb, darg.parent_ino, > EXT4_IGET_NORMAL); > - if (IS_ERR_OR_NULL(old_parent)) { > + if (IS_ERR(old_parent)) { > jbd_debug(1, "Dir with inode %d not found", darg.parent_ino); > iput(inode); > return 0; > @@ -1410,7 +1410,7 @@ static int ext4_fc_replay_link(struct super_block *sb, > struct ext4_fc_tl *tl) > darg.parent_ino, darg.dname_len); > > inode = ext4_iget(sb, darg.ino, EXT4_IGET_NORMAL); > - if (IS_ERR_OR_NULL(inode)) { > + if (IS_ERR(inode)) { > jbd_debug(1, "Inode not found."); > return 0; > } > @@ -1466,10 +1466,11 @@ static int ext4_fc_replay_inode(struct super_block > *sb, struct ext4_fc_tl *tl) > trace_ext4_fc_replay(sb, tag, ino, 0, 0); > > inode = ext4_iget(sb, ino, EXT4_IGET_NORMAL); > - if (!IS_ERR_OR_NULL(inode)) { > + if (!IS_ERR(inode)) { > ext4_ext_clear_bb(inode); > iput(inode); > } > + inode = NULL; > > ext4_fc_record_modified_inode(sb, ino); > > @@ -1512,7 +1513,7 @@ static int ext4_fc_replay_inode(struct super_block *sb, > struct ext4_fc_tl *tl) > > /* Given that we just wrote the inode on disk, this SHOULD succeed. */ > inode = ext4_iget(sb, ino, EXT4_IGET_NORMAL); > - if (IS_ERR_OR_NULL(inode)) { > + if (IS_ERR(inode)) { > jbd_debug(1, "Inode not found."); > return -EFSCORRUPTED; > } > @@ -1564,7 +1565,7 @@ static int ext4_fc_replay_create(struct super_block > *sb, struct ext4_fc_tl *tl) > goto out; > > inode = ext4_iget(sb, darg.ino, EXT4_IGET_NORMAL); > - if (IS_ERR_OR_NULL(inode)) { > + if (IS_ERR(inode)) { > jbd_debug(1, "inode %d not found.", darg.ino); > inode = NULL; > ret = -EINVAL; > @@ -1577,7 +1578,7 @@ static int ext4_fc_replay_create(struct super_block > *sb, struct ext4_fc_tl *tl) > * dot and dot dot dirents are setup properly. > */ > dir = ext4_iget(sb, darg.parent_ino, EXT4_IGET_NORMAL); > - if (IS_ERR_OR_NULL(dir)) { > + if (IS_ERR(dir)) { > jbd_debug(1, "Dir %d not found.", darg.ino); > goto out; > } > @@ -1653,7 +1654,7 @@ static int ext4_fc_replay_add_range(struct super_block > *sb, > > inode = ext4_iget(sb, le32_to_cpu(fc_add_ex->fc_ino), > EXT4_IGET_NORMAL); > - if (IS_ERR_OR_NULL(inode)) { > + if (IS_ERR(inode)) { > jbd_debug(1, "Inode not found."); > return 0; > } > @@ -1777,7 +1778,7 @@ ext4_fc_replay_del_range(struct super_block *sb, struct > ext4_fc_tl *tl) > le32_to_cpu(lrange->fc_ino), cur, remaining); > > inode = ext4_iget(sb, le32_to_cpu(lrange->fc_ino), EXT4_IGET_NORMAL); > - if (IS_ERR_OR_NULL(inode)) { > + if (IS_ERR(inode)) { > jbd_debug(1, "Inode %d not found", le32_to_cpu(lrange->fc_ino)); > return 0; > } > @@ -1832,7 +1833,7 @@ static void ext4_fc_set_bitmaps_and_counters(struct > super_block *sb) > for (i = 0; i < state->fc_modified_inodes_used; i++) { > inode = ext4_iget(sb, state->fc_modified_inodes[i], > EXT4_IGET_NORMAL); > - if (IS_ERR_OR_NULL(inode)) { > + if (IS_ERR(inode)) { > jbd_debug(1, "Inode %d not found.", > state->fc_modified_inodes[i]); > continue; > @@ -1849,7 +1850,7 @@ static void ext4_fc_set_bitmaps_and_counters(struct > super_block *sb) > > if (ret > 0) { > path = ext4_find_extent(inode, map.m_lblk, > NULL, 0); > - if (!IS_ERR_OR_NULL(path)) { > + if (!IS_ERR(path)) { > for (j = 0; j < path->p_depth; j++) > ext4_mb_mark_bb(inode->i_sb, > path[j].p_block, 1, 1); > -- > 2.25.3 > > > -- Jan Kara <[email protected]> SUSE Labs, CR
