diff options
| author | Jin Qian <jinqian@google.com> | 2017-04-25 16:28:48 -0700 |
|---|---|---|
| committer | Dennis Cagle <dcagle@codeaurora.org> | 2017-08-21 10:43:51 -0700 |
| commit | e4f60027026c438d21b1db83d69e0dd2d92c6e56 (patch) | |
| tree | 243660c55f8d70a39d3855f017b59169148ff08c | |
| parent | a49bb61510b938152025049730fa922c5da950a1 (diff) | |
f2fs: sanity check segment count
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.
Change-Id: I64d9be6dcc4ab5d8a45359c69d6163ed0209e8fe
Signed-off-by: Jin Qian <jinqian@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
Git-commit: b9dd46188edc2f0d1f37328637860bb65a771124
Signed-off-by: Dennis Cagle <dcagle@codeaurora.org>
| -rw-r--r-- | include/linux/f2fs_fs.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index 3d6e6ce44c5c..005d5c3e200e 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -290,6 +290,12 @@ struct f2fs_nat_block { #define F2FS_MAX_SEGMENT ((16 * 1024 * 1024) / 2) /* + * 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. + */ +#define F2FS_MAX_SEGMENT ((16 * 1024 * 1024) / 2) + +/* * Note that f2fs_sit_entry->vblocks has the following bit-field information. * [15:10] : allocation type such as CURSEG_XXXX_TYPE * [9:0] : valid block count |