diff options
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 299ee9df546f..94283d06cace 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2328,17 +2328,15 @@ int ext4_ext_calc_credits_for_single_extent(struct inode *inode, int nrblocks, } /* - * How many index/leaf blocks need to change/allocate to modify nrblocks? + * How many index/leaf blocks need to change/allocate to add @extents extents? * - * if nrblocks are fit in a single extent (chunk flag is 1), then - * in the worse case, each tree level index/leaf need to be changed - * if the tree split due to insert a new extent, then the old tree - * index/leaf need to be updated too + * If we add a single extent, then in the worse case, each tree level + * index/leaf need to be changed in case of the tree split. * - * If the nrblocks are discontiguous, they could cause - * the whole tree split more than once, but this is really rare. + * If more extents are inserted, they could cause the whole tree split more + * than once, but this is really rare. */ -int ext4_ext_index_trans_blocks(struct inode *inode, int nrblocks, int chunk) +int ext4_ext_index_trans_blocks(struct inode *inode, int extents) { int index; int depth; @@ -2349,7 +2347,7 @@ int ext4_ext_index_trans_blocks(struct inode *inode, int nrblocks, int chunk) depth = ext_depth(inode); - if (chunk) + if (extents <= 1) index = depth * 2; else index = depth * 3; |