diff options
| author | Namjae Jeon <linkinjeon@gmail.com> | 2012-05-31 16:26:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-31 17:49:28 -0700 |
| commit | f0aac6162e945590057dcfb841bdce8fd18ed4f6 (patch) | |
| tree | d27e953fb571ac22dfbfc8a5a251066586742fe8 /fs/fat | |
| parent | b742c341539fc8b8386ef72f0e95758f39fbb4c8 (diff) | |
| download | linux-f0aac6162e945590057dcfb841bdce8fd18ed4f6.tar.gz | |
fat: use fat_msg_ratelimit() in fat__get_entry()
If an application tries to lookup (opendir/readdir/stat) 5000 files on a fatfs USB device and the device is unplugged, many message occur, shown below. This makes the application slow. So use the new fat_msg_ratelimit() decrease the messaging rate. #> ./file_lookup_testcase ./files_directory/ usb 2-1.4: USB disconnect, device number 4 FAT-fs (sda1): FAT read failed (blocknr 2631) FAT-fs (sda1): Directory bread(block 396816) failed FAT-fs (sda1): Directory bread(block 396817) failed FAT-fs (sda1): Directory bread(block 396818) failed FAT-fs (sda1): Directory bread(block 396819) failed FAT-fs (sda1): Directory bread(block 396820) failed FAT-fs (sda1): Directory bread(block 396821) failed FAT-fs (sda1): Directory bread(block 396822) failed FAT-fs (sda1): Directory bread(block 396823) failed FAT-fs (sda1): Directory bread(block 406824) failed FAT-fs (sda1): Directory bread(block 406825) failed FAT-fs (sda1): Directory bread(block 406826) failed FAT-fs (sda1): Directory bread(block 406827) failed FAT-fs (sda1): Directory bread(block 406828) failed FAT-fs (sda1): Directory bread(block 406829) failed FAT-fs (sda1): Directory bread(block 406830) failed FAT-fs (sda1): Directory bread(block 406831) failed FAT-fs (sda1): Directory bread(block 417696) failed FAT-fs (sda1): Directory bread(block 417697) failed FAT-fs (sda1): Directory bread(block 417698) failed FAT-fs (sda1): Directory bread(block 417699) failed FAT-fs (sda1): Directory bread(block 417700) failed FAT-fs (sda1): Directory bread(block 417701) failed FAT-fs (sda1): Directory bread(block 417702) failed FAT-fs (sda1): Directory bread(block 417703) failed FAT-fs (sda1): FAT read failed (blocknr 2631) FAT-fs (sda1): Directory bread(block 396816) failed FAT-fs (sda1): Directory bread(block 396817) failed FAT-fs (sda1): Directory bread(block 396818) failed FAT-fs (sda1): Directory bread(block 396819) failed FAT-fs (sda1): Directory bread(block 396820) failed FAT-fs (sda1): Directory bread(block 396821) failed Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Amit Sahrawat <amit.sahrawat83@gmail.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fat')
| -rw-r--r-- | fs/fat/dir.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/fat/dir.c b/fs/fat/dir.c index aca191bd5f8f..6eaa28c98ad1 100644 --- a/fs/fat/dir.c +++ b/fs/fat/dir.c @@ -98,8 +98,8 @@ next: *bh = sb_bread(sb, phys); if (*bh == NULL) { - fat_msg(sb, KERN_ERR, "Directory bread(block %llu) failed", - (llu)phys); + fat_msg_ratelimit(sb, KERN_ERR, + "Directory bread(block %llu) failed", (llu)phys); /* skip this block */ *pos = (iblock + 1) << sb->s_blocksize_bits; goto next; |