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-rw-r--r--fs/fat/inode.c3
-rw-r--r--fs/fat/misc.c10
2 files changed, 11 insertions, 2 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 5f04c5c810fb..594b05ae16c9 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -21,6 +21,7 @@
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
#include <asm/unaligned.h>
+#include <linux/random.h>
#include <linux/iversion.h>
#include "fat.h"
@@ -521,7 +522,7 @@ int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de)
inode->i_uid = sbi->options.fs_uid;
inode->i_gid = sbi->options.fs_gid;
inode_inc_iversion(inode);
- inode->i_generation = get_seconds();
+ inode->i_generation = prandom_u32();
if ((de->attr & ATTR_DIR) && !IS_FREE(de->name)) {
inode->i_generation &= ~1;
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 1e08bd54c5fb..f1b2a1fc2a6a 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -271,6 +271,14 @@ static inline struct timespec64 fat_timespec64_trunc_2secs(struct timespec64 ts)
{
return (struct timespec64){ ts.tv_sec & ~1ULL, 0 };
}
+
+static inline struct timespec64 fat_timespec64_trunc_10ms(struct timespec64 ts)
+{
+ if (ts.tv_nsec)
+ ts.tv_nsec -= ts.tv_nsec % 10000000UL;
+ return ts;
+}
+
/*
* truncate the various times with appropriate granularity:
* root inode:
@@ -308,7 +316,7 @@ int fat_truncate_time(struct inode *inode, struct timespec64 *now, int flags)
}
if (flags & S_CTIME) {
if (sbi->options.isvfat)
- inode->i_ctime = timespec64_trunc(*now, 10000000);
+ inode->i_ctime = fat_timespec64_trunc_10ms(*now);
else
inode->i_ctime = fat_timespec64_trunc_2secs(*now);
}