diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2018-10-12 05:30:16 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2018-10-12 05:30:16 -0700 |
| commit | bbaf766c22fc4745fbf4494037a62a21ad7c5ecc (patch) | |
| tree | a0cac8263692d7aba4fad5feae5ad4ab195bdd95 /fs/ext4/resize.c | |
| parent | 51abefff9fb42c8834acb643d6aa70d855e0cf43 (diff) | |
| parent | 1065e41df3d0060f67ea0b2432b252dc9acca341 (diff) | |
Merge "Merge android-4.4.159 (624c095) into msm-4.4"
Diffstat (limited to 'fs/ext4/resize.c')
| -rw-r--r-- | fs/ext4/resize.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index d2421fd38833..783280ebc2fe 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -18,6 +18,7 @@ int ext4_resize_begin(struct super_block *sb) { + struct ext4_sb_info *sbi = EXT4_SB(sb); int ret = 0; if (!capable(CAP_SYS_RESOURCE)) @@ -28,7 +29,7 @@ int ext4_resize_begin(struct super_block *sb) * because the user tools have no way of handling this. Probably a * bad time to do it anyways. */ - if (EXT4_SB(sb)->s_sbh->b_blocknr != + if (EXT4_B2C(sbi, sbi->s_sbh->b_blocknr) != le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { ext4_warning(sb, "won't resize using backup superblock at %llu", (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr); @@ -1954,6 +1955,26 @@ retry: } } + /* + * Make sure the last group has enough space so that it's + * guaranteed to have enough space for all metadata blocks + * that it might need to hold. (We might not need to store + * the inode table blocks in the last block group, but there + * will be cases where this might be needed.) + */ + if ((ext4_group_first_block_no(sb, n_group) + + ext4_group_overhead_blocks(sb, n_group) + 2 + + sbi->s_itb_per_group + sbi->s_cluster_ratio) >= n_blocks_count) { + n_blocks_count = ext4_group_first_block_no(sb, n_group); + n_group--; + n_blocks_count_retry = 0; + if (resize_inode) { + iput(resize_inode); + resize_inode = NULL; + } + goto retry; + } + /* extend the last group */ if (n_group == o_group) add = n_blocks_count - o_blocks_count; |