diff options
Diffstat (limited to 'include/linux/f2fs_fs.h')
| -rw-r--r-- | include/linux/f2fs_fs.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index a357287eac1e..41d1d71c36ff 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -394,7 +394,8 @@ struct f2fs_nat_block { /* * F2FS uses 4 bytes to represent block address. As a result, supported size of - * disk is 16 TB and it equals to 16 * 1024 * 1024 / 2 segments. + * disk is 16 TB for a 4K page size and 64 TB for a 16K page size and it equals + * to 16 * 1024 * 1024 / 2 segments. */ #define F2FS_MAX_SEGMENT ((16 * 1024 * 1024) / 2) @@ -424,8 +425,10 @@ struct f2fs_sit_block { /* * For segment summary * - * One summary block contains exactly 512 summary entries, which represents - * exactly one segment by default. Not allow to change the basic units. + * One summary block with 4KB size contains exactly 512 summary entries, which + * represents exactly one segment with 2MB size. + * Similarly, in the case of block with 16KB size, it represents one segment with 8MB size. + * Not allow to change the basic units. * * NOTE: For initializing fields, you must use set_summary * @@ -556,6 +559,7 @@ typedef __le32 f2fs_hash_t; /* * space utilization of regular dentry and inline dentry (w/o extra reservation) + * when block size is 4KB. * regular dentry inline dentry (def) inline dentry (min) * bitmap 1 * 27 = 27 1 * 23 = 23 1 * 1 = 1 * reserved 1 * 3 = 3 1 * 7 = 7 1 * 1 = 1 |