diff options
| author | Todd Poynor <toddpoynor@google.com> | 2013-04-05 16:38:53 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-12 09:18:08 -0700 |
| commit | a58e3e13f5f8c03a88195c45771b2ef3a7a53f75 (patch) | |
| tree | b7dc667a58b0ab0ba9df4c96384f210eecb89e9c /fs | |
| parent | ba2ae99cf346c740e64241f77c5d54eca55f0d91 (diff) | |
ext4: fixup 64-bit divides in 3.0-stable backport of upstream fix
Replace C division operators with div64_u64 for divides introduced in:
commit 503f4bdcc078e7abee273a85ce322de81b18a224
ext4: use atomic64_t for the per-flexbg free_clusters count
Specific to the 3.0-stable backport of the upstream patch.
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Reviewed-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>
Cc: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/ialloc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index dd732c7aa81..443ffb8eab9 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -22,6 +22,7 @@ #include <linux/random.h> #include <linux/bitops.h> #include <linux/blkdev.h> +#include <linux/math64.h> #include <asm/byteorder.h> #include "ext4.h" @@ -356,7 +357,7 @@ static int find_group_flex(struct super_block *sb, struct inode *parent, find_close_to_parent: flexbg_free_blocks = atomic64_read(&flex_group[best_flex].free_blocks); - flex_freeb_ratio = flexbg_free_blocks * 100 / blocks_per_flex; + flex_freeb_ratio = div64_u64(flexbg_free_blocks * 100, blocks_per_flex); if (atomic_read(&flex_group[best_flex].free_inodes) && flex_freeb_ratio > free_block_ratio) goto found_flexbg; @@ -371,7 +372,7 @@ find_close_to_parent: continue; flexbg_free_blocks = atomic64_read(&flex_group[i].free_blocks); - flex_freeb_ratio = flexbg_free_blocks * 100 / blocks_per_flex; + flex_freeb_ratio = div64_u64(flexbg_free_blocks * 100, blocks_per_flex); if (flex_freeb_ratio > free_block_ratio && (atomic_read(&flex_group[i].free_inodes))) { |