The patch titled
Subject: fat: truncate inode timestamp updates in setattr
has been added to the -mm tree. Its filename is
fat-truncate-inode-timestamp-updates-in-setattr.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/fat-truncate-inode-timestamp-updates-in-setattr.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/fat-truncate-inode-timestamp-updates-in-setattr.patch
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------------------------------------------------------
From: Frank Sorenson <sorenson@xxxxxxxxxx>
Subject: fat: truncate inode timestamp updates in setattr
setattr_copy can't truncate timestamps correctly for
msdos/vfat, so truncate and copy them ourselves.
Link: http://lkml.kernel.org/r/a2b4701b1125573fafaeaae6802050ca86d6f8cc.1538363961.git.sorenson@xxxxxxxxxx
Signed-off-by: Frank Sorenson <sorenson@xxxxxxxxxx>
Acked-by: OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/fs/fat/file.c~fat-truncate-inode-timestamp-updates-in-setattr
+++ a/fs/fat/file.c
@@ -542,6 +542,18 @@ int fat_setattr(struct dentry *dentry, s
up_write(&MSDOS_I(inode)->truncate_lock);
}
+ /*
+ * setattr_copy can't truncate these appropriately, so we'll
+ * copy them ourselves
+ */
+ if (attr->ia_valid & ATTR_ATIME)
+ fat_truncate_time(inode, &attr->ia_atime, S_ATIME);
+ if (attr->ia_valid & ATTR_CTIME)
+ fat_truncate_time(inode, &attr->ia_ctime, S_CTIME);
+ if (attr->ia_valid & ATTR_MTIME)
+ fat_truncate_time(inode, &attr->ia_mtime, S_MTIME);
+ attr->ia_valid &= ~(ATTR_ATIME|ATTR_CTIME|ATTR_MTIME);
+
setattr_copy(inode, attr);
mark_inode_dirty(inode);
out:
_
Patches currently in -mm which might be from sorenson@xxxxxxxxxx are
fat-create-a-function-to-calculate-the-timezone-offest.patch
fat-add-functions-to-update-and-truncate-timestamps-appropriately.patch
fat-change-timestamp-updates-to-use-fat_truncate_time.patch
fat-truncate-inode-timestamp-updates-in-setattr.patch
