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authorJason A. Donenfeld <Jason@zx2c4.com>2022-10-09 20:44:02 -0600
committerJason A. Donenfeld <Jason@zx2c4.com>2022-11-18 02:18:02 +0100
commite8a533cbeb79809206f8724e89961e0079508c3c (patch)
treeb81da4151f67029174482ab2fdbee7dc8c98c931 /fs/f2fs
parentd247aabd391c3b2fa4f26874ed9136a7a142fcfd (diff)
treewide: use get_random_u32_inclusive() when possible
These cases were done with this Coccinelle: @@ expression H; expression L; @@ - (get_random_u32_below(H) + L) + get_random_u32_inclusive(L, H + L - 1) @@ expression H; expression L; expression E; @@ get_random_u32_inclusive(L, H - + E - - E ) @@ expression H; expression L; expression E; @@ get_random_u32_inclusive(L, H - - E - + E ) @@ expression H; expression L; expression E; expression F; @@ get_random_u32_inclusive(L, H - - E + F - + E ) @@ expression H; expression L; expression E; expression F; @@ get_random_u32_inclusive(L, H - + E + F - - E ) And then subsequently cleaned up by hand, with several automatic cases rejected if it didn't make sense contextually. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/segment.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 334415d946f8..b304692c0cf5 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2588,7 +2588,7 @@ static void new_curseg(struct f2fs_sb_info *sbi, int type, bool new_sec)
curseg->alloc_type = LFS;
if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK)
curseg->fragment_remained_chunk =
- get_random_u32_below(sbi->max_fragment_chunk) + 1;
+ get_random_u32_inclusive(1, sbi->max_fragment_chunk);
}
static int __next_free_blkoff(struct f2fs_sb_info *sbi,
@@ -2625,9 +2625,9 @@ static void __refresh_next_blkoff(struct f2fs_sb_info *sbi,
/* To allocate block chunks in different sizes, use random number */
if (--seg->fragment_remained_chunk <= 0) {
seg->fragment_remained_chunk =
- get_random_u32_below(sbi->max_fragment_chunk) + 1;
+ get_random_u32_inclusive(1, sbi->max_fragment_chunk);
seg->next_blkoff +=
- get_random_u32_below(sbi->max_fragment_hole) + 1;
+ get_random_u32_inclusive(1, sbi->max_fragment_hole);
}
}
}