diff options
| author | Peng Tao <bergwolf@gmail.com> | 2009-09-04 17:15:40 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-09-07 16:21:19 -0400 |
| commit | 2884d208a37fe8813267198a247694bc90b00f96 (patch) | |
| tree | 5eab188fdd617eab267c2c7b79f22db1f0dcf992 | |
| parent | 1d8af189bd3762c09175ff4d9b6cdd98fe8c8150 (diff) | |
| download | e2fsprogs-2884d208a37fe8813267198a247694bc90b00f96.tar.gz | |
resize2fs: fix minimum resize size calculation with flex_bg
When flex_bg is on, calculate_minimum_resize_size() should add more meta
blocks for newly added flex_bg.
Addresses-RedHat-Bugzilla: #519131
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| -rw-r--r-- | resize/resize2fs.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/resize/resize2fs.c b/resize/resize2fs.c index c0b00b67..648e1f93 100644 --- a/resize/resize2fs.c +++ b/resize/resize2fs.c @@ -1900,6 +1900,8 @@ blk_t calculate_minimum_resize_size(ext2_filsys fs) blk_t inode_count, blks_needed, groups, data_blocks; blk_t grp, data_needed, last_start; int overhead = 0, num_of_superblocks = 0; + int extra_groups = 0; + int flexbg_size = 1 << fs->super->s_log_groups_per_flex; /* * first figure out how many group descriptors we need to @@ -1934,11 +1936,9 @@ blk_t calculate_minimum_resize_size(ext2_filsys fs) * of inode tables of slack space so the resize * operation can be guaranteed to finish. */ - int flexbg_size = 1 << fs->super->s_log_groups_per_flex; - int extra_groups; - extra_groups = flexbg_size - (groups & (flexbg_size - 1)); data_needed += META_OVERHEAD(fs) * extra_groups; + extra_groups = groups % flexbg_size; } /* @@ -2002,6 +2002,20 @@ blk_t calculate_minimum_resize_size(ext2_filsys fs) } groups += extra_grps; + extra_groups += extra_grps; + if (fs->super->s_feature_incompat + & EXT4_FEATURE_INCOMPAT_FLEX_BG + && extra_groups > flexbg_size) { + /* + * For ext4 we need to allow for up to a flex_bg worth + * of inode tables of slack space so the resize + * operation can be guaranteed to finish. + */ + extra_groups = flexbg_size - + (groups & (flexbg_size - 1)); + data_needed += META_OVERHEAD(fs) * extra_groups; + extra_groups = groups % flexbg_size; + } } /* now for the fun voodoo */ |