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| author | Mark Brown <broonie@kernel.org> | 2018-10-01 12:13:41 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-10-01 12:13:41 +0100 |
| commit | c6ee9e74b237b01d0a4988de41acbf569fdb8974 (patch) | |
| tree | 6bfbda84d65410c342e756f710833a261086c5f6 /fs/ext4/resize.c | |
| parent | f4150b38acaa292e9efa1e0d82a3d8bdfdbec658 (diff) | |
| parent | 9c6cd3f3a4b8194e82fa927bc00028c7a505e3b3 (diff) | |
Merge tag 'v4.4.159' into linux-linaro-lsk-v4.4lsk-v4.4-18.09
This is the 4.4.159 stable release
# gpg: Signature made Sat 29 Sep 2018 11:08:56 BST
# gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E
# gpg: Good signature from "Greg Kroah-Hartman <gregkh@linuxfoundation.org>" [unknown]
# gpg: aka "Greg Kroah-Hartman (Linux kernel stable release signing key) <greg@kroah.com>" [unknown]
# gpg: aka "Greg Kroah-Hartman <gregkh@kernel.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 647F 2865 4894 E3BD 4571 99BE 38DB BDC8 6092 693E
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; |