abcb6c9fd1
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>
77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
#ifndef _LINUX_STAT_H
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#define _LINUX_STAT_H
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#ifdef __KERNEL__
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#include <asm/stat.h>
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#endif
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#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
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#define S_IFMT 00170000
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#define S_IFSOCK 0140000
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#define S_IFLNK 0120000
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#define S_IFREG 0100000
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#define S_IFBLK 0060000
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#define S_IFDIR 0040000
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#define S_IFCHR 0020000
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#define S_IFIFO 0010000
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#define S_ISUID 0004000
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#define S_ISGID 0002000
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#define S_ISVTX 0001000
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#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
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#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
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#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
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#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
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#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
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#define S_IRWXU 00700
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#define S_IRUSR 00400
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#define S_IWUSR 00200
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#define S_IXUSR 00100
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#define S_IRWXG 00070
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#define S_IRGRP 00040
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#define S_IWGRP 00020
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#define S_IXGRP 00010
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#define S_IRWXO 00007
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#define S_IROTH 00004
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#define S_IWOTH 00002
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#define S_IXOTH 00001
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#endif
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#ifdef __KERNEL__
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#define S_IRWXUGO (S_IRWXU|S_IRWXG|S_IRWXO)
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#define S_IALLUGO (S_ISUID|S_ISGID|S_ISVTX|S_IRWXUGO)
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#define S_IRUGO (S_IRUSR|S_IRGRP|S_IROTH)
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#define S_IWUGO (S_IWUSR|S_IWGRP|S_IWOTH)
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#define S_IXUGO (S_IXUSR|S_IXGRP|S_IXOTH)
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#include <linux/types.h>
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#include <linux/time.h>
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struct kstat {
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unsigned long ino;
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dev_t dev;
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umode_t mode;
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unsigned int nlink;
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uid_t uid;
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gid_t gid;
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dev_t rdev;
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loff_t size;
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struct timespec atime;
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struct timespec mtime;
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struct timespec ctime;
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unsigned long blksize;
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unsigned long long blocks;
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};
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#endif
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#endif
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