After the behavior of '%pD' is change to print the full path of file, iomap_swapfile_fail() can be simplified. Given the space with proper length would be allocated in vprintk_store(), the kmalloc() is not required any more. Besides, the previous number postfix of '%pD' in format string is pointless. Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx> Cc: "Darrick J. Wong" <djwong@xxxxxxxxxx> Cc: linux-xfs@xxxxxxxxxxxxxxx Cc: linux-fsdevel@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Suggested-by: Christoph Hellwig <hch@xxxxxxxxxxxxx> Signed-off-by: Jia He <justin.he@xxxxxxx> --- fs/iomap/direct-io.c | 2 +- fs/iomap/swapfile.c | 8 +------- 2 files changed, 2 insertions(+), 8 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 9398b8c31323..e876a5f9d888 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -426,7 +426,7 @@ iomap_dio_actor(struct inode *inode, loff_t pos, loff_t length, * iomap_apply() call in the DIO path, then it will see the * DELALLOC block that the page-mkwrite allocated. */ - pr_warn_ratelimited("Direct I/O collision with buffered writes! File: %pD4 Comm: %.20s\n", + pr_warn_ratelimited("Direct I/O collision with buffered writes! File: %pD Comm: %.20s\n", dio->iocb->ki_filp, current->comm); return -EIO; default: diff --git a/fs/iomap/swapfile.c b/fs/iomap/swapfile.c index 6250ca6a1f85..17032c14e466 100644 --- a/fs/iomap/swapfile.c +++ b/fs/iomap/swapfile.c @@ -73,13 +73,7 @@ static int iomap_swapfile_add_extent(struct iomap_swapfile_info *isi) static int iomap_swapfile_fail(struct iomap_swapfile_info *isi, const char *str) { - char *buf, *p = ERR_PTR(-ENOMEM); - - buf = kmalloc(PATH_MAX, GFP_KERNEL); - if (buf) - p = file_path(isi->file, buf, PATH_MAX); - pr_err("swapon: file %s %s\n", IS_ERR(p) ? "<unknown>" : p, str); - kfree(buf); + pr_err("swapon: file %pD %s\n", isi->file, str); return -EINVAL; } -- 2.17.1