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efivarfs: Update inode modification time for successful writes

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Some applications want to be able to see when EFI variables
have been updated.

Update the modification time for successful writes.

Reported-by: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20200528194905.690-2-tony.luck@intel.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Tony Luck 2020-05-28 12:49:04 -07:00 committed by Ard Biesheuvel
parent 4ddf4739be
commit 2096721f15
1 changed files with 1 additions and 0 deletions
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fs/efivarfs/file.c
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@ -51,6 +51,7 @@ static ssize_t efivarfs_file_write(struct file *file,
} else {
inode_lock(inode);
i_size_write(inode, datasize + sizeof(attributes));
inode->i_mtime = current_time(inode);
inode_unlock(inode);
}