From: Eric Biggers <ebiggers@xxxxxxxxxx> Subject: fs/minix: remove expected error message in block_to_path() When truncating a file to a size within the last allowed logical block, block_to_path() is called with the *next* block. This exceeds the limit, causing the "block %ld too big" error message to be printed. This case isn't actually an error; there are just no more blocks past that point. So, remove this error message. Link: http://lkml.kernel.org/r/20200628060846.682158-7-ebiggers@xxxxxxxxxx Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Qiujun Huang <anenbupt@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/minix/itree_v1.c | 12 ++++++------ fs/minix/itree_v2.c | 12 ++++++------ 2 files changed, 12 insertions(+), 12 deletions(-) --- a/fs/minix/itree_v1.c~fs-minix-remove-expected-error-message-in-block_to_path +++ a/fs/minix/itree_v1.c @@ -29,12 +29,12 @@ static int block_to_path(struct inode * if (block < 0) { printk("MINIX-fs: block_to_path: block %ld < 0 on dev %pg\n", block, inode->i_sb->s_bdev); - } else if ((u64)block * BLOCK_SIZE >= inode->i_sb->s_maxbytes) { - if (printk_ratelimit()) - printk("MINIX-fs: block_to_path: " - "block %ld too big on dev %pg\n", - block, inode->i_sb->s_bdev); - } else if (block < 7) { + return 0; + } + if ((u64)block * BLOCK_SIZE >= inode->i_sb->s_maxbytes) + return 0; + + if (block < 7) { offsets[n++] = block; } else if ((block -= 7) < 512) { offsets[n++] = 7; --- a/fs/minix/itree_v2.c~fs-minix-remove-expected-error-message-in-block_to_path +++ a/fs/minix/itree_v2.c @@ -32,12 +32,12 @@ static int block_to_path(struct inode * if (block < 0) { printk("MINIX-fs: block_to_path: block %ld < 0 on dev %pg\n", block, sb->s_bdev); - } else if ((u64)block * (u64)sb->s_blocksize >= sb->s_maxbytes) { - if (printk_ratelimit()) - printk("MINIX-fs: block_to_path: " - "block %ld too big on dev %pg\n", - block, sb->s_bdev); - } else if (block < DIRCOUNT) { + return 0; + } + if ((u64)block * (u64)sb->s_blocksize >= sb->s_maxbytes) + return 0; + + if (block < DIRCOUNT) { offsets[n++] = block; } else if ((block -= DIRCOUNT) < INDIRCOUNT(sb)) { offsets[n++] = DIRCOUNT; _
