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Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6

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This commit is contained in:
Steve French
2007-11-25 09:53:27 +00:00
parent cea218054a 2ffbb8377c
commit 058250a0d5
305 changed files with 5069 additions and 4521 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/bfs/bfs.h
+1 -3
View File
@@ -14,8 +14,6 @@ struct bfs_sb_info {
unsigned long si_blocks;
unsigned long si_freeb;
unsigned long si_freei;
unsigned long si_lf_ioff;
unsigned long si_lf_sblk;
unsigned long si_lf_eblk;
unsigned long si_lasti;
unsigned long * si_imap;
@@ -39,7 +37,7 @@ static inline struct bfs_sb_info *BFS_SB(struct super_block *sb)
static inline struct bfs_inode_info *BFS_I(struct inode *inode)
{
return list_entry(inode, struct bfs_inode_info, vfs_inode);
return container_of(inode, struct bfs_inode_info, vfs_inode);
}
fs/bfs/dir.c
+78 -68
View File
@@ -21,29 +21,32 @@
#define dprintf(x...)
#endif
static int bfs_add_entry(struct inode * dir, const unsigned char * name, int namelen, int ino);
static struct buffer_head * bfs_find_entry(struct inode * dir,
const unsigned char * name, int namelen, struct bfs_dirent ** res_dir);
static int bfs_add_entry(struct inode *dir, const unsigned char *name,
int namelen, int ino);
static struct buffer_head *bfs_find_entry(struct inode *dir,
const unsigned char *name, int namelen,
struct bfs_dirent **res_dir);
static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
static int bfs_readdir(struct file *f, void *dirent, filldir_t filldir)
{
struct inode * dir = f->f_path.dentry->d_inode;
struct buffer_head * bh;
struct bfs_dirent * de;
struct inode *dir = f->f_path.dentry->d_inode;
struct buffer_head *bh;
struct bfs_dirent *de;
unsigned int offset;
int block;
lock_kernel();
if (f->f_pos & (BFS_DIRENT_SIZE-1)) {
printf("Bad f_pos=%08lx for %s:%08lx\n", (unsigned long)f->f_pos,
dir->i_sb->s_id, dir->i_ino);
if (f->f_pos & (BFS_DIRENT_SIZE - 1)) {
printf("Bad f_pos=%08lx for %s:%08lx\n",
(unsigned long)f->f_pos,
dir->i_sb->s_id, dir->i_ino);
unlock_kernel();
return -EBADF;
}
while (f->f_pos < dir->i_size) {
offset = f->f_pos & (BFS_BSIZE-1);
offset = f->f_pos & (BFS_BSIZE - 1);
block = BFS_I(dir)->i_sblock + (f->f_pos >> BFS_BSIZE_BITS);
bh = sb_bread(dir->i_sb, block);
if (!bh) {
@@ -54,7 +57,9 @@ static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
de = (struct bfs_dirent *)(bh->b_data + offset);
if (de->ino) {
int size = strnlen(de->name, BFS_NAMELEN);
if (filldir(dirent, de->name, size, f->f_pos, le16_to_cpu(de->ino), DT_UNKNOWN) < 0) {
if (filldir(dirent, de->name, size, f->f_pos,
le16_to_cpu(de->ino),
DT_UNKNOWN) < 0) {
brelse(bh);
unlock_kernel();
return 0;
@@ -62,7 +67,7 @@ static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
}
offset += BFS_DIRENT_SIZE;
f->f_pos += BFS_DIRENT_SIZE;
} while (offset < BFS_BSIZE && f->f_pos < dir->i_size);
} while ((offset < BFS_BSIZE) && (f->f_pos < dir->i_size));
brelse(bh);
}
@@ -78,13 +83,13 @@ const struct file_operations bfs_dir_operations = {
extern void dump_imap(const char *, struct super_block *);
static int bfs_create(struct inode * dir, struct dentry * dentry, int mode,
struct nameidata *nd)
static int bfs_create(struct inode *dir, struct dentry *dentry, int mode,
struct nameidata *nd)
{
int err;
struct inode * inode;
struct super_block * s = dir->i_sb;
struct bfs_sb_info * info = BFS_SB(s);
struct inode *inode;
struct super_block *s = dir->i_sb;
struct bfs_sb_info *info = BFS_SB(s);
unsigned long ino;
inode = new_inode(s);
@@ -97,7 +102,7 @@ static int bfs_create(struct inode * dir, struct dentry * dentry, int mode,
iput(inode);
return -ENOSPC;
}
set_bit(ino, info->si_imap);
set_bit(ino, info->si_imap);
info->si_freei--;
inode->i_uid = current->fsuid;
inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
@@ -113,9 +118,10 @@ static int bfs_create(struct inode * dir, struct dentry * dentry, int mode,
BFS_I(inode)->i_eblock = 0;
insert_inode_hash(inode);
mark_inode_dirty(inode);
dump_imap("create",s);
dump_imap("create", s);
err = bfs_add_entry(dir, dentry->d_name.name, dentry->d_name.len, inode->i_ino);
err = bfs_add_entry(dir, dentry->d_name.name, dentry->d_name.len,
inode->i_ino);
if (err) {
inode_dec_link_count(inode);
iput(inode);
@@ -127,11 +133,12 @@ static int bfs_create(struct inode * dir, struct dentry * dentry, int mode,
return 0;
}
static struct dentry * bfs_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
static struct dentry *bfs_lookup(struct inode *dir, struct dentry *dentry,
struct nameidata *nd)
{
struct inode * inode = NULL;
struct buffer_head * bh;
struct bfs_dirent * de;
struct inode *inode = NULL;
struct buffer_head *bh;
struct bfs_dirent *de;
if (dentry->d_name.len > BFS_NAMELEN)
return ERR_PTR(-ENAMETOOLONG);
@@ -152,13 +159,15 @@ static struct dentry * bfs_lookup(struct inode * dir, struct dentry * dentry, st
return NULL;
}
static int bfs_link(struct dentry * old, struct inode * dir, struct dentry * new)
static int bfs_link(struct dentry *old, struct inode *dir,
struct dentry *new)
{
struct inode * inode = old->d_inode;
struct inode *inode = old->d_inode;
int err;
lock_kernel();
err = bfs_add_entry(dir, new->d_name.name, new->d_name.len, inode->i_ino);
err = bfs_add_entry(dir, new->d_name.name, new->d_name.len,
inode->i_ino);
if (err) {
unlock_kernel();
return err;
@@ -172,23 +181,23 @@ static int bfs_link(struct dentry * old, struct inode * dir, struct dentry * new
return 0;
}
static int bfs_unlink(struct inode * dir, struct dentry * dentry)
static int bfs_unlink(struct inode *dir, struct dentry *dentry)
{
int error = -ENOENT;
struct inode * inode;
struct buffer_head * bh;
struct bfs_dirent * de;
struct inode *inode;
struct buffer_head *bh;
struct bfs_dirent *de;
inode = dentry->d_inode;
lock_kernel();
bh = bfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &de);
if (!bh || le16_to_cpu(de->ino) != inode->i_ino)
if (!bh || (le16_to_cpu(de->ino) != inode->i_ino))
goto out_brelse;
if (!inode->i_nlink) {
printf("unlinking non-existent file %s:%lu (nlink=%d)\n", inode->i_sb->s_id,
inode->i_ino, inode->i_nlink);
printf("unlinking non-existent file %s:%lu (nlink=%d)\n",
inode->i_sb->s_id, inode->i_ino,
inode->i_nlink);
inode->i_nlink = 1;
}
de->ino = 0;
@@ -205,12 +214,12 @@ out_brelse:
return error;
}
static int bfs_rename(struct inode * old_dir, struct dentry * old_dentry,
struct inode * new_dir, struct dentry * new_dentry)
static int bfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry)
{
struct inode * old_inode, * new_inode;
struct buffer_head * old_bh, * new_bh;
struct bfs_dirent * old_de, * new_de;
struct inode *old_inode, *new_inode;
struct buffer_head *old_bh, *new_bh;
struct bfs_dirent *old_de, *new_de;
int error = -ENOENT;
old_bh = new_bh = NULL;
@@ -223,7 +232,7 @@ static int bfs_rename(struct inode * old_dir, struct dentry * old_dentry,
old_dentry->d_name.name,
old_dentry->d_name.len, &old_de);
if (!old_bh || le16_to_cpu(old_de->ino) != old_inode->i_ino)
if (!old_bh || (le16_to_cpu(old_de->ino) != old_inode->i_ino))
goto end_rename;
error = -EPERM;
@@ -239,7 +248,8 @@ static int bfs_rename(struct inode * old_dir, struct dentry * old_dentry,
if (!new_bh) {
error = bfs_add_entry(new_dir,
new_dentry->d_name.name,
new_dentry->d_name.len, old_inode->i_ino);
new_dentry->d_name.len,
old_inode->i_ino);
if (error)
goto end_rename;
}
@@ -268,11 +278,12 @@ const struct inode_operations bfs_dir_inops = {
.rename = bfs_rename,
};
static int bfs_add_entry(struct inode * dir, const unsigned char * name, int namelen, int ino)
static int bfs_add_entry(struct inode *dir, const unsigned char *name,
int namelen, int ino)
{
struct buffer_head * bh;
struct bfs_dirent * de;
int block, sblock, eblock, off, eoff;
struct buffer_head *bh;
struct bfs_dirent *de;
int block, sblock, eblock, off, pos;
int i;
dprintf("name=%s, namelen=%d\n", name, namelen);
@@ -284,27 +295,24 @@ static int bfs_add_entry(struct inode * dir, const unsigned char * name, int nam
sblock = BFS_I(dir)->i_sblock;
eblock = BFS_I(dir)->i_eblock;
eoff = dir->i_size % BFS_BSIZE;
for (block=sblock; block<=eblock; block++) {
for (block = sblock; block <= eblock; block++) {
bh = sb_bread(dir->i_sb, block);
if(!bh)
if (!bh)
return -ENOSPC;
for (off=0; off<BFS_BSIZE; off+=BFS_DIRENT_SIZE) {
for (off = 0; off < BFS_BSIZE; off += BFS_DIRENT_SIZE) {
de = (struct bfs_dirent *)(bh->b_data + off);
if (block==eblock && off>=eoff) {
/* Do not read/interpret the garbage in the end of eblock. */
de->ino = 0;
}
if (!de->ino) {
if ((block-sblock)*BFS_BSIZE + off >= dir->i_size) {
pos = (block - sblock) * BFS_BSIZE + off;
if (pos >= dir->i_size) {
dir->i_size += BFS_DIRENT_SIZE;
dir->i_ctime = CURRENT_TIME_SEC;
}
dir->i_mtime = CURRENT_TIME_SEC;
mark_inode_dirty(dir);
de->ino = cpu_to_le16((u16)ino);
for (i=0; i<BFS_NAMELEN; i++)
de->name[i] = (i < namelen) ? name[i] : 0;
for (i = 0; i < BFS_NAMELEN; i++)
de->name[i] =
(i < namelen) ? name[i] : 0;
mark_buffer_dirty(bh);
brelse(bh);
return 0;
@@ -315,25 +323,26 @@ static int bfs_add_entry(struct inode * dir, const unsigned char * name, int nam
return -ENOSPC;
}
static inline int bfs_namecmp(int len, const unsigned char * name, const char * buffer)
static inline int bfs_namecmp(int len, const unsigned char *name,
const char *buffer)
{
if (len < BFS_NAMELEN && buffer[len])
if ((len < BFS_NAMELEN) && buffer[len])
return 0;
return !memcmp(name, buffer, len);
}
static struct buffer_head * bfs_find_entry(struct inode * dir,
const unsigned char * name, int namelen, struct bfs_dirent ** res_dir)
static struct buffer_head *bfs_find_entry(struct inode *dir,
const unsigned char *name, int namelen,
struct bfs_dirent **res_dir)
{
unsigned long block, offset;
struct buffer_head * bh;
struct bfs_dirent * de;
unsigned long block = 0, offset = 0;
struct buffer_head *bh = NULL;
struct bfs_dirent *de;
*res_dir = NULL;
if (namelen > BFS_NAMELEN)
return NULL;
bh = NULL;
block = offset = 0;
while (block * BFS_BSIZE + offset < dir->i_size) {
if (!bh) {
bh = sb_bread(dir->i_sb, BFS_I(dir)->i_sblock + block);
@@ -344,7 +353,8 @@ static struct buffer_head * bfs_find_entry(struct inode * dir,
}
de = (struct bfs_dirent *)(bh->b_data + offset);
offset += BFS_DIRENT_SIZE;
if (le16_to_cpu(de->ino) && bfs_namecmp(namelen, name, de->name)) {
if (le16_to_cpu(de->ino) &&
bfs_namecmp(namelen, name, de->name)) {
*res_dir = de;
return bh;
}
fs/bfs/file.c
+41 -21
View File
@@ -2,6 +2,11 @@
* fs/bfs/file.c
* BFS file operations.
* Copyright (C) 1999,2000 Tigran Aivazian <tigran@veritas.com>
*
* Make the file block allocation algorithm understand the size
* of the underlying block device.
* Copyright (C) 2007 Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
*
*/
#include <linux/fs.h>
@@ -27,7 +32,8 @@ const struct file_operations bfs_file_operations = {
.splice_read = generic_file_splice_read,
};
static int bfs_move_block(unsigned long from, unsigned long to, struct super_block *sb)
static int bfs_move_block(unsigned long from, unsigned long to,
struct super_block *sb)
{
struct buffer_head *bh, *new;
@@ -43,21 +49,22 @@ static int bfs_move_block(unsigned long from, unsigned long to, struct super_blo
}
static int bfs_move_blocks(struct super_block *sb, unsigned long start,
unsigned long end, unsigned long where)
unsigned long end, unsigned long where)
{
unsigned long i;
dprintf("%08lx-%08lx->%08lx\n", start, end, where);
for (i = start; i <= end; i++)
if(bfs_move_block(i, where + i, sb)) {
dprintf("failed to move block %08lx -> %08lx\n", i, where + i);
dprintf("failed to move block %08lx -> %08lx\n", i,
where + i);
return -EIO;
}
return 0;
}
static int bfs_get_block(struct inode * inode, sector_t block,
struct buffer_head * bh_result, int create)
static int bfs_get_block(struct inode *inode, sector_t block,
struct buffer_head *bh_result, int create)
{
unsigned long phys;
int err;
@@ -66,9 +73,6 @@ static int bfs_get_block(struct inode * inode, sector_t block,
struct bfs_inode_info *bi = BFS_I(inode);
struct buffer_head *sbh = info->si_sbh;
if (block > info->si_blocks)
return -EIO;
phys = bi->i_sblock + block;
if (!create) {
if (phys <= bi->i_eblock) {
@@ -79,21 +83,29 @@ static int bfs_get_block(struct inode * inode, sector_t block,
return 0;
}
/* if the file is not empty and the requested block is within the range
of blocks allocated for this file, we can grant it */
if (inode->i_size && phys <= bi->i_eblock) {
/*
* If the file is not empty and the requested block is within the
* range of blocks allocated for this file, we can grant it.
*/
if (bi->i_sblock && (phys <= bi->i_eblock)) {
dprintf("c=%d, b=%08lx, phys=%08lx (interim block granted)\n",
create, (unsigned long)block, phys);
map_bh(bh_result, sb, phys);
return 0;
}
/* the rest has to be protected against itself */
/* The file will be extended, so let's see if there is enough space. */
if (phys >= info->si_blocks)
return -ENOSPC;
/* The rest has to be protected against itself. */
lock_kernel();
/* if the last data block for this file is the last allocated
block, we can extend the file trivially, without moving it
anywhere */
/*
* If the last data block for this file is the last allocated
* block, we can extend the file trivially, without moving it
* anywhere.
*/
if (bi->i_eblock == info->si_lf_eblk) {
dprintf("c=%d, b=%08lx, phys=%08lx (simple extension)\n",
create, (unsigned long)block, phys);
@@ -106,13 +118,19 @@ static int bfs_get_block(struct inode * inode, sector_t block,
goto out;
}
/* Ok, we have to move this entire file to the next free block */
/* Ok, we have to move this entire file to the next free block. */
phys = info->si_lf_eblk + 1;
if (bi->i_sblock) { /* if data starts on block 0 then there is no data */
if (phys + block >= info->si_blocks) {
err = -ENOSPC;
goto out;
}
if (bi->i_sblock) {
err = bfs_move_blocks(inode->i_sb, bi->i_sblock,
bi->i_eblock, phys);
bi->i_eblock, phys);
if (err) {
dprintf("failed to move ino=%08lx -> fs corruption\n", inode->i_ino);
dprintf("failed to move ino=%08lx -> fs corruption\n",
inode->i_ino);
goto out;
}
} else
@@ -124,8 +142,10 @@ static int bfs_get_block(struct inode * inode, sector_t block,
phys += block;
info->si_lf_eblk = bi->i_eblock = phys;
/* this assumes nothing can write the inode back while we are here
* and thus update inode->i_blocks! (XXX)*/
/*
* This assumes nothing can write the inode back while we are here
* and thus update inode->i_blocks! (XXX)
*/
info->si_freeb -= bi->i_eblock - bi->i_sblock + 1 - inode->i_blocks;
mark_inode_dirty(inode);
mark_buffer_dirty(sbh);
fs/bfs/inode.c
+64 -63
View File
@@ -30,25 +30,26 @@ MODULE_LICENSE("GPL");
#define dprintf(x...)
#endif
void dump_imap(const char *prefix, struct super_block * s);
void dump_imap(const char *prefix, struct super_block *s);
static void bfs_read_inode(struct inode * inode)
static void bfs_read_inode(struct inode *inode)
{
unsigned long ino = inode->i_ino;
struct bfs_inode * di;
struct buffer_head * bh;
struct bfs_inode *di;
struct buffer_head *bh;
int block, off;
if (ino < BFS_ROOT_INO || ino > BFS_SB(inode->i_sb)->si_lasti) {
if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(inode->i_sb)->si_lasti)) {
printf("Bad inode number %s:%08lx\n", inode->i_sb->s_id, ino);
make_bad_inode(inode);
return;
}
block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
bh = sb_bread(inode->i_sb, block);
if (!bh) {
printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id, ino);
printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id,
ino);
make_bad_inode(inode);
return;
}
@@ -56,7 +57,7 @@ static void bfs_read_inode(struct inode * inode)
off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
di = (struct bfs_inode *)bh->b_data + off;
inode->i_mode = 0x0000FFFF & le32_to_cpu(di->i_mode);
inode->i_mode = 0x0000FFFF & le32_to_cpu(di->i_mode);
if (le32_to_cpu(di->i_vtype) == BFS_VDIR) {
inode->i_mode |= S_IFDIR;
inode->i_op = &bfs_dir_inops;
@@ -70,48 +71,48 @@ static void bfs_read_inode(struct inode * inode)
BFS_I(inode)->i_sblock = le32_to_cpu(di->i_sblock);
BFS_I(inode)->i_eblock = le32_to_cpu(di->i_eblock);
BFS_I(inode)->i_dsk_ino = le16_to_cpu(di->i_ino);
inode->i_uid = le32_to_cpu(di->i_uid);
inode->i_gid = le32_to_cpu(di->i_gid);
inode->i_nlink = le32_to_cpu(di->i_nlink);
inode->i_size = BFS_FILESIZE(di);
inode->i_blocks = BFS_FILEBLOCKS(di);
if (inode->i_size || inode->i_blocks) dprintf("Registered inode with %lld size, %ld blocks\n", inode->i_size, inode->i_blocks);
inode->i_atime.tv_sec = le32_to_cpu(di->i_atime);
inode->i_mtime.tv_sec = le32_to_cpu(di->i_mtime);
inode->i_ctime.tv_sec = le32_to_cpu(di->i_ctime);
inode->i_atime.tv_nsec = 0;
inode->i_mtime.tv_nsec = 0;
inode->i_ctime.tv_nsec = 0;
BFS_I(inode)->i_dsk_ino = le16_to_cpu(di->i_ino); /* can be 0 so we store a copy */
brelse(bh);
}
static int bfs_write_inode(struct inode * inode, int unused)
static int bfs_write_inode(struct inode *inode, int unused)
{
unsigned int ino = (u16)inode->i_ino;
unsigned long i_sblock;
struct bfs_inode * di;
struct buffer_head * bh;
struct bfs_inode *di;
struct buffer_head *bh;
int block, off;
dprintf("ino=%08x\n", ino);
if (ino < BFS_ROOT_INO || ino > BFS_SB(inode->i_sb)->si_lasti) {
if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(inode->i_sb)->si_lasti)) {
printf("Bad inode number %s:%08x\n", inode->i_sb->s_id, ino);
return -EIO;
}
lock_kernel();
block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
bh = sb_bread(inode->i_sb, block);
if (!bh) {
printf("Unable to read inode %s:%08x\n", inode->i_sb->s_id, ino);
printf("Unable to read inode %s:%08x\n",
inode->i_sb->s_id, ino);
unlock_kernel();
return -EIO;
}
off = (ino - BFS_ROOT_INO)%BFS_INODES_PER_BLOCK;
off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
di = (struct bfs_inode *)bh->b_data + off;
if (ino == BFS_ROOT_INO)
@@ -133,27 +134,26 @@ static int bfs_write_inode(struct inode * inode, int unused)
di->i_eoffset = cpu_to_le32(i_sblock * BFS_BSIZE + inode->i_size - 1);
mark_buffer_dirty(bh);
dprintf("Written ino=%d into %d:%d\n",le16_to_cpu(di->i_ino),block,off);
brelse(bh);
unlock_kernel();
return 0;
}
static void bfs_delete_inode(struct inode * inode)
static void bfs_delete_inode(struct inode *inode)
{
unsigned long ino = inode->i_ino;
struct bfs_inode * di;
struct buffer_head * bh;
struct bfs_inode *di;
struct buffer_head *bh;
int block, off;
struct super_block * s = inode->i_sb;
struct bfs_sb_info * info = BFS_SB(s);
struct bfs_inode_info * bi = BFS_I(inode);
struct super_block *s = inode->i_sb;
struct bfs_sb_info *info = BFS_SB(s);
struct bfs_inode_info *bi = BFS_I(inode);
dprintf("ino=%08lx\n", ino);
truncate_inode_pages(&inode->i_data, 0);
if (ino < BFS_ROOT_INO || ino > info->si_lasti) {
if ((ino < BFS_ROOT_INO) || (ino > info->si_lasti)) {
printf("invalid ino=%08lx\n", ino);
return;
}
@@ -162,31 +162,35 @@ static void bfs_delete_inode(struct inode * inode)
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
lock_kernel();
mark_inode_dirty(inode);
block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
bh = sb_bread(s, block);
if (!bh) {
printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id, ino);
printf("Unable to read inode %s:%08lx\n",
inode->i_sb->s_id, ino);
unlock_kernel();
return;
}
off = (ino - BFS_ROOT_INO)%BFS_INODES_PER_BLOCK;
di = (struct bfs_inode *) bh->b_data + off;
off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
di = (struct bfs_inode *)bh->b_data + off;
memset((void *)di, 0, sizeof(struct bfs_inode));
mark_buffer_dirty(bh);
brelse(bh);
if (bi->i_dsk_ino) {
info->si_freeb += 1 + bi->i_eblock - bi->i_sblock;
info->si_freeb += BFS_FILEBLOCKS(bi);
info->si_freei++;
clear_bit(ino, info->si_imap);
dump_imap("delete_inode", s);
}
di->i_ino = 0;
di->i_sblock = 0;
mark_buffer_dirty(bh);
brelse(bh);
/* if this was the last file, make the previous
block "last files last block" even if there is no real file there,
saves us 1 gap */
if (info->si_lf_eblk == BFS_I(inode)->i_eblock) {
info->si_lf_eblk = BFS_I(inode)->i_sblock - 1;
/*
* If this was the last file, make the previous block
* "last block of the last file" even if there is no
* real file there, saves us 1 gap.
*/
if (info->si_lf_eblk == bi->i_eblock) {
info->si_lf_eblk = bi->i_sblock - 1;
mark_buffer_dirty(info->si_sbh);
}
unlock_kernel();
@@ -228,7 +232,7 @@ static void bfs_write_super(struct super_block *s)
unlock_kernel();
}
static struct kmem_cache * bfs_inode_cachep;
static struct kmem_cache *bfs_inode_cachep;
static struct inode *bfs_alloc_inode(struct super_block *sb)
{
@@ -279,7 +283,7 @@ static const struct super_operations bfs_sops = {
.statfs = bfs_statfs,
};
void dump_imap(const char *prefix, struct super_block * s)
void dump_imap(const char *prefix, struct super_block *s)
{
#ifdef DEBUG
int i;
@@ -287,25 +291,26 @@ void dump_imap(const char *prefix, struct super_block * s)
if (!tmpbuf)
return;
for (i=BFS_SB(s)->si_lasti; i>=0; i--) {
if (i > PAGE_SIZE-100) break;
for (i = BFS_SB(s)->si_lasti; i >= 0; i--) {
if (i > PAGE_SIZE - 100) break;
if (test_bit(i, BFS_SB(s)->si_imap))
strcat(tmpbuf, "1");
else
strcat(tmpbuf, "0");
}
printk(KERN_ERR "BFS-fs: %s: lasti=%08lx <%s>\n", prefix, BFS_SB(s)->si_lasti, tmpbuf);
printf("BFS-fs: %s: lasti=%08lx <%s>\n",
prefix, BFS_SB(s)->si_lasti, tmpbuf);
free_page((unsigned long)tmpbuf);
#endif
}
static int bfs_fill_super(struct super_block *s, void *data, int silent)
{
struct buffer_head * bh;
struct bfs_super_block * bfs_sb;
struct inode * inode;
struct buffer_head *bh;
struct bfs_super_block *bfs_sb;
struct inode *inode;
unsigned i, imap_len;
struct bfs_sb_info * info;
struct bfs_sb_info *info;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
@@ -329,14 +334,14 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
s->s_magic = BFS_MAGIC;
info->si_sbh = bh;
info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE)/sizeof(struct bfs_inode)
+ BFS_ROOT_INO - 1;
imap_len = info->si_lasti/8 + 1;
info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE) /
sizeof(struct bfs_inode)
+ BFS_ROOT_INO - 1;
imap_len = (info->si_lasti / 8) + 1;
info->si_imap = kzalloc(imap_len, GFP_KERNEL);
if (!info->si_imap)
goto out;
for (i=0; i<BFS_ROOT_INO; i++)
for (i = 0; i < BFS_ROOT_INO; i++)
set_bit(i, info->si_imap);
s->s_op = &bfs_sops;
@@ -352,16 +357,15 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
goto out;
}
info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1)>>BFS_BSIZE_BITS; /* for statfs(2) */
info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1 - le32_to_cpu(bfs_sb->s_start))>>BFS_BSIZE_BITS;
info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1) >> BFS_BSIZE_BITS;
info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1
- le32_to_cpu(bfs_sb->s_start)) >> BFS_BSIZE_BITS;
info->si_freei = 0;
info->si_lf_eblk = 0;
info->si_lf_sblk = 0;
info->si_lf_ioff = 0;
bh = NULL;
for (i=BFS_ROOT_INO; i<=info->si_lasti; i++) {
for (i = BFS_ROOT_INO; i <= info->si_lasti; i++) {
struct bfs_inode *di;
int block = (i - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
int block = (i - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
int off = (i - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
unsigned long sblock, eblock;
@@ -384,11 +388,8 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
sblock = le32_to_cpu(di->i_sblock);
eblock = le32_to_cpu(di->i_eblock);
if (eblock > info->si_lf_eblk) {
if (eblock > info->si_lf_eblk)
info->si_lf_eblk = eblock;
info->si_lf_sblk = sblock;
info->si_lf_ioff = BFS_INO2OFF(i);
}
}
brelse(bh);
if (!(s->s_flags & MS_RDONLY)) {
fs/ecryptfs/read_write.c
+1 -1
View File
@@ -87,7 +87,7 @@ int ecryptfs_write_lower_page_segment(struct inode *ecryptfs_inode,
loff_t offset;
int rc;
offset = ((((off_t)page_for_lower->index) << PAGE_CACHE_SHIFT)
offset = ((((loff_t)page_for_lower->index) << PAGE_CACHE_SHIFT)
+ offset_in_page);
virt = kmap(page_for_lower);
rc = ecryptfs_write_lower(ecryptfs_inode, virt, offset, size);
fs/ext2/ioctl.c
+5
View File
@@ -47,6 +47,11 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
flags &= ~EXT2_DIRSYNC_FL;
mutex_lock(&inode->i_mutex);
/* Is it quota file? Do not allow user to mess with it */
if (IS_NOQUOTA(inode)) {
mutex_unlock(&inode->i_mutex);
return -EPERM;
}
oldflags = ei->i_flags;
/*
fs/ext3/dir.c
+5 -5
View File
@@ -67,7 +67,7 @@ int ext3_check_dir_entry (const char * function, struct inode * dir,
unsigned long offset)
{
const char * error_msg = NULL;
const int rlen = le16_to_cpu(de->rec_len);
const int rlen = ext3_rec_len_from_disk(de->rec_len);
if (rlen < EXT3_DIR_REC_LEN(1))
error_msg = "rec_len is smaller than minimal";
@@ -173,10 +173,10 @@ revalidate:
* least that it is non-zero. A
* failure will be detected in the
* dirent test below. */
if (le16_to_cpu(de->rec_len) <
if (ext3_rec_len_from_disk(de->rec_len) <
EXT3_DIR_REC_LEN(1))
break;
i += le16_to_cpu(de->rec_len);
i += ext3_rec_len_from_disk(de->rec_len);
}
offset = i;
filp->f_pos = (filp->f_pos & ~(sb->s_blocksize - 1))
@@ -197,7 +197,7 @@ revalidate:
ret = stored;
goto out;
}
offset += le16_to_cpu(de->rec_len);
offset += ext3_rec_len_from_disk(de->rec_len);
if (le32_to_cpu(de->inode)) {
/* We might block in the next section
* if the data destination is
@@ -219,7 +219,7 @@ revalidate:
goto revalidate;
stored ++;
}
filp->f_pos += le16_to_cpu(de->rec_len);
filp->f_pos += ext3_rec_len_from_disk(de->rec_len);
}
offset = 0;
brelse (bh);
fs/ext3/ioctl.c
+5
View File
@@ -51,6 +51,11 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
flags &= ~EXT3_DIRSYNC_FL;
mutex_lock(&inode->i_mutex);
/* Is it quota file? Do not allow user to mess with it */
if (IS_NOQUOTA(inode)) {
mutex_unlock(&inode->i_mutex);
return -EPERM;
}
oldflags = ei->i_flags;
/* The JOURNAL_DATA flag is modifiable only by root */
fs/ext3/namei.c
+45 -47
View File
@@ -176,6 +176,16 @@ static struct buffer_head * ext3_dx_find_entry(struct dentry *dentry,
static int ext3_dx_add_entry(handle_t *handle, struct dentry *dentry,
struct inode *inode);
/*
* p is at least 6 bytes before the end of page
*/
static inline struct ext3_dir_entry_2 *
ext3_next_entry(struct ext3_dir_entry_2 *p)
{
return (struct ext3_dir_entry_2 *)((char *)p +
ext3_rec_len_from_disk(p->rec_len));
}
/*
* Future: use high four bits of block for coalesce-on-delete flags
* Mask them off for now.
@@ -280,7 +290,7 @@ static struct stats dx_show_leaf(struct dx_hash_info *hinfo, struct ext3_dir_ent
space += EXT3_DIR_REC_LEN(de->name_len);
names++;
}
de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
de = ext3_next_entry(de);
}
printk("(%i)\n", names);
return (struct stats) { names, space, 1 };
@@ -546,14 +556,6 @@ static int ext3_htree_next_block(struct inode *dir, __u32 hash,
}
/*
* p is at least 6 bytes before the end of page
*/
static inline struct ext3_dir_entry_2 *ext3_next_entry(struct ext3_dir_entry_2 *p)
{
return (struct ext3_dir_entry_2 *)((char*)p + le16_to_cpu(p->rec_len));
}
/*
* This function fills a red-black tree with information from a
* directory block. It returns the number directory entries loaded
@@ -720,7 +722,7 @@ static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
cond_resched();
}
/* XXX: do we need to check rec_len == 0 case? -Chris */
de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
de = ext3_next_entry(de);
}
return count;
}
@@ -822,7 +824,7 @@ static inline int search_dirblock(struct buffer_head * bh,
return 1;
}
/* prevent looping on a bad block */
de_len = le16_to_cpu(de->rec_len);
de_len = ext3_rec_len_from_disk(de->rec_len);
if (de_len <= 0)
return -1;
offset += de_len;
@@ -1130,7 +1132,7 @@ dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
rec_len = EXT3_DIR_REC_LEN(de->name_len);
memcpy (to, de, rec_len);
((struct ext3_dir_entry_2 *) to)->rec_len =
cpu_to_le16(rec_len);
ext3_rec_len_to_disk(rec_len);
de->inode = 0;
map++;
to += rec_len;
@@ -1149,13 +1151,12 @@ static struct ext3_dir_entry_2* dx_pack_dirents(char *base, int size)
prev = to = de;
while ((char*)de < base + size) {
next = (struct ext3_dir_entry_2 *) ((char *) de +
le16_to_cpu(de->rec_len));
next = ext3_next_entry(de);
if (de->inode && de->name_len) {
rec_len = EXT3_DIR_REC_LEN(de->name_len);
if (de > to)
memmove(to, de, rec_len);
to->rec_len = cpu_to_le16(rec_len);
to->rec_len = ext3_rec_len_to_disk(rec_len);
prev = to;
to = (struct ext3_dir_entry_2 *) (((char *) to) + rec_len);
}
@@ -1229,8 +1230,8 @@ static struct ext3_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
/* Fancy dance to stay within two buffers */
de2 = dx_move_dirents(data1, data2, map + split, count - split);
de = dx_pack_dirents(data1,blocksize);
de->rec_len = cpu_to_le16(data1 + blocksize - (char *) de);
de2->rec_len = cpu_to_le16(data2 + blocksize - (char *) de2);
de->rec_len = ext3_rec_len_to_disk(data1 + blocksize - (char *) de);
de2->rec_len = ext3_rec_len_to_disk(data2 + blocksize - (char *) de2);
dxtrace(dx_show_leaf (hinfo, (struct ext3_dir_entry_2 *) data1, blocksize, 1));
dxtrace(dx_show_leaf (hinfo, (struct ext3_dir_entry_2 *) data2, blocksize, 1));
@@ -1300,7 +1301,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
return -EEXIST;
}
nlen = EXT3_DIR_REC_LEN(de->name_len);
rlen = le16_to_cpu(de->rec_len);
rlen = ext3_rec_len_from_disk(de->rec_len);
if ((de->inode? rlen - nlen: rlen) >= reclen)
break;
de = (struct ext3_dir_entry_2 *)((char *)de + rlen);
@@ -1319,11 +1320,11 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
/* By now the buffer is marked for journaling */
nlen = EXT3_DIR_REC_LEN(de->name_len);
rlen = le16_to_cpu(de->rec_len);
rlen = ext3_rec_len_from_disk(de->rec_len);
if (de->inode) {
struct ext3_dir_entry_2 *de1 = (struct ext3_dir_entry_2 *)((char *)de + nlen);
de1->rec_len = cpu_to_le16(rlen - nlen);
de->rec_len = cpu_to_le16(nlen);
de1->rec_len = ext3_rec_len_to_disk(rlen - nlen);
de->rec_len = ext3_rec_len_to_disk(nlen);
de = de1;
}
de->file_type = EXT3_FT_UNKNOWN;
@@ -1400,17 +1401,18 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
/* The 0th block becomes the root, move the dirents out */
fde = &root->dotdot;
de = (struct ext3_dir_entry_2 *)((char *)fde + le16_to_cpu(fde->rec_len));
de = (struct ext3_dir_entry_2 *)((char *)fde +
ext3_rec_len_from_disk(fde->rec_len));
len = ((char *) root) + blocksize - (char *) de;
memcpy (data1, de, len);
de = (struct ext3_dir_entry_2 *) data1;
top = data1 + len;
while ((char *)(de2=(void*)de+le16_to_cpu(de->rec_len)) < top)
while ((char *)(de2 = ext3_next_entry(de)) < top)
de = de2;
de->rec_len = cpu_to_le16(data1 + blocksize - (char *) de);
de->rec_len = ext3_rec_len_to_disk(data1 + blocksize - (char *) de);
/* Initialize the root; the dot dirents already exist */
de = (struct ext3_dir_entry_2 *) (&root->dotdot);
de->rec_len = cpu_to_le16(blocksize - EXT3_DIR_REC_LEN(2));
de->rec_len = ext3_rec_len_to_disk(blocksize - EXT3_DIR_REC_LEN(2));
memset (&root->info, 0, sizeof(root->info));
root->info.info_length = sizeof(root->info);
root->info.hash_version = EXT3_SB(dir->i_sb)->s_def_hash_version;
@@ -1490,7 +1492,7 @@ static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
return retval;
de = (struct ext3_dir_entry_2 *) bh->b_data;
de->inode = 0;
de->rec_len = cpu_to_le16(blocksize);
de->rec_len = ext3_rec_len_to_disk(blocksize);
return add_dirent_to_buf(handle, dentry, inode, de, bh);
}
@@ -1553,7 +1555,7 @@ static int ext3_dx_add_entry(handle_t *handle, struct dentry *dentry,
goto cleanup;
node2 = (struct dx_node *)(bh2->b_data);
entries2 = node2->entries;
node2->fake.rec_len = cpu_to_le16(sb->s_blocksize);
node2->fake.rec_len = ext3_rec_len_to_disk(sb->s_blocksize);
node2->fake.inode = 0;
BUFFER_TRACE(frame->bh, "get_write_access");
err = ext3_journal_get_write_access(handle, frame->bh);
@@ -1651,9 +1653,9 @@ static int ext3_delete_entry (handle_t *handle,
BUFFER_TRACE(bh, "get_write_access");
ext3_journal_get_write_access(handle, bh);
if (pde)
pde->rec_len =
cpu_to_le16(le16_to_cpu(pde->rec_len) +
le16_to_cpu(de->rec_len));
pde->rec_len = ext3_rec_len_to_disk(
ext3_rec_len_from_disk(pde->rec_len) +
ext3_rec_len_from_disk(de->rec_len));
else
de->inode = 0;
dir->i_version++;
@@ -1661,10 +1663,9 @@ static int ext3_delete_entry (handle_t *handle,
ext3_journal_dirty_metadata(handle, bh);
return 0;
}
i += le16_to_cpu(de->rec_len);
i += ext3_rec_len_from_disk(de->rec_len);
pde = de;
de = (struct ext3_dir_entry_2 *)
((char *) de + le16_to_cpu(de->rec_len));
de = ext3_next_entry(de);
}
return -ENOENT;
}
@@ -1798,13 +1799,13 @@ retry:
de = (struct ext3_dir_entry_2 *) dir_block->b_data;
de->inode = cpu_to_le32(inode->i_ino);
de->name_len = 1;
de->rec_len = cpu_to_le16(EXT3_DIR_REC_LEN(de->name_len));
de->rec_len = ext3_rec_len_to_disk(EXT3_DIR_REC_LEN(de->name_len));
strcpy (de->name, ".");
ext3_set_de_type(dir->i_sb, de, S_IFDIR);
de = (struct ext3_dir_entry_2 *)
((char *) de + le16_to_cpu(de->rec_len));
de = ext3_next_entry(de);
de->inode = cpu_to_le32(dir->i_ino);
de->rec_len = cpu_to_le16(inode->i_sb->s_blocksize-EXT3_DIR_REC_LEN(1));
de->rec_len = ext3_rec_len_to_disk(inode->i_sb->s_blocksize -
EXT3_DIR_REC_LEN(1));
de->name_len = 2;
strcpy (de->name, "..");
ext3_set_de_type(dir->i_sb, de, S_IFDIR);
@@ -1856,8 +1857,7 @@ static int empty_dir (struct inode * inode)
return 1;
}
de = (struct ext3_dir_entry_2 *) bh->b_data;
de1 = (struct ext3_dir_entry_2 *)
((char *) de + le16_to_cpu(de->rec_len));
de1 = ext3_next_entry(de);
if (le32_to_cpu(de->inode) != inode->i_ino ||
!le32_to_cpu(de1->inode) ||
strcmp (".", de->name) ||
@@ -1868,9 +1868,9 @@ static int empty_dir (struct inode * inode)
brelse (bh);
return 1;
}
offset = le16_to_cpu(de->rec_len) + le16_to_cpu(de1->rec_len);
de = (struct ext3_dir_entry_2 *)
((char *) de1 + le16_to_cpu(de1->rec_len));
offset = ext3_rec_len_from_disk(de->rec_len) +
ext3_rec_len_from_disk(de1->rec_len);
de = ext3_next_entry(de1);
while (offset < inode->i_size ) {
if (!bh ||
(void *) de >= (void *) (bh->b_data+sb->s_blocksize)) {
@@ -1899,9 +1899,8 @@ static int empty_dir (struct inode * inode)
brelse (bh);
return 0;
}
offset += le16_to_cpu(de->rec_len);
de = (struct ext3_dir_entry_2 *)
((char *) de + le16_to_cpu(de->rec_len));
offset += ext3_rec_len_from_disk(de->rec_len);
de = ext3_next_entry(de);
}
brelse (bh);
return 1;
@@ -2255,8 +2254,7 @@ retry:
}
#define PARENT_INO(buffer) \
((struct ext3_dir_entry_2 *) ((char *) buffer + \
le16_to_cpu(((struct ext3_dir_entry_2 *) buffer)->rec_len)))->inode
(ext3_next_entry((struct ext3_dir_entry_2 *)(buffer))->inode)
/*
* Anybody can rename anything with this: the permission checks are left to the
fs/ext4/ioctl.c
+5
View File
@@ -51,6 +51,11 @@ int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
flags &= ~EXT4_DIRSYNC_FL;
mutex_lock(&inode->i_mutex);
/* Is it quota file? Do not allow user to mess with it */
if (IS_NOQUOTA(inode)) {
mutex_unlock(&inode->i_mutex);
return -EPERM;
}
oldflags = ei->i_flags;
/* The JOURNAL_DATA flag is modifiable only by root */
fs/fuse/file.c
+3 -2
View File
@@ -55,9 +55,10 @@ struct fuse_file *fuse_file_alloc(void)
if (!ff->reserved_req) {
kfree(ff);
ff = NULL;
} else {
INIT_LIST_HEAD(&ff->write_entry);
atomic_set(&ff->count, 0);
}
INIT_LIST_HEAD(&ff->write_entry);
atomic_set(&ff->count, 0);
}
return ff;
}
fs/hugetlbfs/inode.c
+5 -6
View File
@@ -364,7 +364,6 @@ static void truncate_hugepages(struct inode *inode, loff_t lstart)
++next;
truncate_huge_page(page);
unlock_page(page);
hugetlb_put_quota(mapping);
freed++;
}
huge_pagevec_release(&pvec);
@@ -859,15 +858,15 @@ out_free:
return -ENOMEM;
}
int hugetlb_get_quota(struct address_space *mapping)
int hugetlb_get_quota(struct address_space *mapping, long delta)
{
int ret = 0;
struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb);
if (sbinfo->free_blocks > -1) {
spin_lock(&sbinfo->stat_lock);
if (sbinfo->free_blocks > 0)
sbinfo->free_blocks--;
if (sbinfo->free_blocks - delta >= 0)
sbinfo->free_blocks -= delta;
else
ret = -ENOMEM;
spin_unlock(&sbinfo->stat_lock);
@@ -876,13 +875,13 @@ int hugetlb_get_quota(struct address_space *mapping)
return ret;
}
void hugetlb_put_quota(struct address_space *mapping)
void hugetlb_put_quota(struct address_space *mapping, long delta)
{
struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb);
if (sbinfo->free_blocks > -1) {
spin_lock(&sbinfo->stat_lock);
sbinfo->free_blocks++;
sbinfo->free_blocks += delta;
spin_unlock(&sbinfo->stat_lock);
}
}
fs/jfs/ioctl.c
+3
View File
@@ -79,6 +79,9 @@ int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
if (!S_ISDIR(inode->i_mode))
flags &= ~JFS_DIRSYNC_FL;
/* Is it quota file? Do not allow user to mess with it */
if (IS_NOQUOTA(inode))
return -EPERM;
jfs_get_inode_flags(jfs_inode);
oldflags = jfs_inode->mode2;
fs/open.c
+1 -1
View File
@@ -1061,7 +1061,7 @@ asmlinkage long sys_open(const char __user *filename, int flags, int mode)
prevent_tail_call(ret);
return ret;
}
EXPORT_SYMBOL_GPL(sys_open);
EXPORT_UNUSED_SYMBOL_GPL(sys_open); /* To be deleted for 2.6.25 */
asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
int mode)
fs/proc/base.c
+6 -9
View File
@@ -2328,21 +2328,18 @@ out:
void proc_flush_task(struct task_struct *task)
{
int i, leader;
struct pid *pid, *tgid;
int i;
struct pid *pid, *tgid = NULL;
struct upid *upid;
leader = thread_group_leader(task);
proc_flush_task_mnt(proc_mnt, task->pid, leader ? task->tgid : 0);
pid = task_pid(task);
if (pid->level == 0)
return;
if (thread_group_leader(task))
tgid = task_tgid(task);
tgid = task_tgid(task);
for (i = 1; i <= pid->level; i++) {
for (i = 0; i <= pid->level; i++) {
upid = &pid->numbers[i];
proc_flush_task_mnt(upid->ns->proc_mnt, upid->nr,
leader ? 0 : tgid->numbers[i].nr);
tgid ? tgid->numbers[i].nr : 0);
}
upid = &pid->numbers[pid->level];
fs/proc/generic.c
+21 -16
View File
@@ -561,28 +561,33 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
static void proc_kill_inodes(struct proc_dir_entry *de)
{
struct list_head *p;
struct super_block *sb = proc_mnt->mnt_sb;
struct super_block *sb;
/*
* Actually it's a partial revoke().
*/
file_list_lock();
list_for_each(p, &sb->s_files) {
struct file * filp = list_entry(p, struct file, f_u.fu_list);
struct dentry * dentry = filp->f_path.dentry;
struct inode * inode;
const struct file_operations *fops;
spin_lock(&sb_lock);
list_for_each_entry(sb, &proc_fs_type.fs_supers, s_instances) {
file_list_lock();
list_for_each(p, &sb->s_files) {
struct file *filp = list_entry(p, struct file,
f_u.fu_list);
struct dentry *dentry = filp->f_path.dentry;
struct inode *inode;
const struct file_operations *fops;
if (dentry->d_op != &proc_dentry_operations)
continue;
inode = dentry->d_inode;
if (PDE(inode) != de)
continue;
fops = filp->f_op;
filp->f_op = NULL;
fops_put(fops);
if (dentry->d_op != &proc_dentry_operations)
continue;
inode = dentry->d_inode;
if (PDE(inode) != de)
continue;
fops = filp->f_op;
filp->f_op = NULL;
fops_put(fops);
}
file_list_unlock();
}
file_list_unlock();
spin_unlock(&sb_lock);
}
static struct proc_dir_entry *proc_create(struct proc_dir_entry **parent,
fs/proc/internal.h
+2
View File
@@ -78,3 +78,5 @@ static inline int proc_fd(struct inode *inode)
{
return PROC_I(inode)->fd;
}
extern struct file_system_type proc_fs_type;
fs/proc/root.c
+1 -1
View File
@@ -98,7 +98,7 @@ static void proc_kill_sb(struct super_block *sb)
put_pid_ns(ns);
}
static struct file_system_type proc_fs_type = {
struct file_system_type proc_fs_type = {
.name = "proc",
.get_sb = proc_get_sb,
.kill_sb = proc_kill_sb,
fs/read_write.c
+1 -1
View File
@@ -370,7 +370,7 @@ asmlinkage ssize_t sys_read(unsigned int fd, char __user * buf, size_t count)
return ret;
}
EXPORT_SYMBOL_GPL(sys_read);
EXPORT_UNUSED_SYMBOL_GPL(sys_read); /* to be deleted for 2.6.25 */
asmlinkage ssize_t sys_write(unsigned int fd, const char __user * buf, size_t count)
{
fs/reiserfs/ioctl.c
+3
View File
@@ -57,6 +57,9 @@ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
if (get_user(flags, (int __user *)arg))
return -EFAULT;
/* Is it quota file? Do not allow user to mess with it. */
if (IS_NOQUOTA(inode))
return -EPERM;
if (((flags ^ REISERFS_I(inode)->
i_attrs) & (REISERFS_IMMUTABLE_FL |
REISERFS_APPEND_FL))

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