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| author | Takashi Sato <sho@tnes.nec.co.jp> | 2006-03-26 01:37:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 08:57:00 -0800 |
| commit | abcb6c9fd13fc2ad7757b818924dc8109a0e3775 (patch) | |
| tree | 39a1d5660d2bd92cffa8eef09d489b241e4072a1 /include/asm-i386 | |
| parent | 93d2341c750cda0df48a6cc67b35fe25f1ec47df (diff) | |
| download | linux-abcb6c9fd13fc2ad7757b818924dc8109a0e3775.tar.gz linux-abcb6c9fd13fc2ad7757b818924dc8109a0e3775.tar.bz2 linux-abcb6c9fd13fc2ad7757b818924dc8109a0e3775.zip | |
[PATCH] 2TB files: st_blocks is invalid when calling stat64
This patch series fixes the following problems on 32 bits architecture.
o stat64 returns the lower 32 bits of blocks, although userland st_blocks
has 64 bits, because i_blocks has only 32 bits. The ioctl with FIOQSIZE has
the same problem.
o As Dave Kleikamp said, making >2TB file on JFS results in writing an
invalid block number to disk inode. The cause is the same as above too.
o In generic quota code dquot_transfer(), the file usage is calculated from
i_blocks via inode_get_bytes(). If the file is over 2TB, the change of
usage is less than expected. The cause is the same as above too.
o As Trond Myklebust said, statfs64's entries related to blocks are invalid
on statfs64 for a network filesystem which has more than 2^32-1 blocks with
CONFIG_LBD disabled. [PATCH 3/3]
We made patches to fix problems that occur when handling a large filesystem
and a large file. It was discussed on the mails titled "stat64 for over 2TB
file returned invalid st_blocks".
Signed-off-by: Takashi Sato <sho@tnes.nec.co.jp>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Cc: Jan Kara <jack@ucw.cz>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/stat.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/asm-i386/stat.h b/include/asm-i386/stat.h index b464f8020ec4..67eae78323ba 100644 --- a/include/asm-i386/stat.h +++ b/include/asm-i386/stat.h @@ -58,8 +58,7 @@ struct stat64 { long long st_size; unsigned long st_blksize; - unsigned long st_blocks; /* Number 512-byte blocks allocated. */ - unsigned long __pad4; /* future possible st_blocks high bits */ + unsigned long long st_blocks; /* Number 512-byte blocks allocated. */ unsigned long st_atime; unsigned long st_atime_nsec; |