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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-20 14:50:31 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-20 14:50:31 -0700
commitbe967b7e2f7747a5ebf2a07ee627d9338491e784 (patch)
treef42b82601209a52b8ee478e36d8b21543ab03060 /fs/jffs2/dir.c
parenteef11427edcb821b63920219f89379fab84198b9 (diff)
parent7bc3312bef4d6f220812500c0de7868fb7625a41 (diff)
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Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (199 commits) [MTD] NAND: Fix breakage all over the place [PATCH] NAND: fix remaining OOB length calculation [MTD] NAND Fixup NDFC merge brokeness [MTD NAND] S3C2410 driver cleanup [MTD NAND] s3c24x0 board: Fix clock handling, ensure proper initialisation. [JFFS2] Check CRC32 on dirent and data nodes each time they're read [JFFS2] When retiring nextblock, allocate a node_ref for the wasted space [JFFS2] Mark XATTR support as experimental, for now [JFFS2] Don't trust node headers before the CRC is checked. [MTD] Restore MTD_ROM and MTD_RAM types [MTD] assume mtd->writesize is 1 for NOR flashes [MTD NAND] Fix s3c2410 NAND driver so it at least _looks_ like it compiles [MTD] Prepare physmap for 64-bit-resources [JFFS2] Fix more breakage caused by janitorial meddling. [JFFS2] Remove stray __exit from jffs2_compressors_exit() [MTD] Allow alternate JFFS2 mount variant for root filesystem. [MTD] Disconnect struct mtd_info from ABI [MTD] replace MTD_RAM with MTD_GENERIC_TYPE [MTD] replace MTD_ROM with MTD_GENERIC_TYPE [MTD] remove a forgotten MTD_XIP ...
Diffstat (limited to 'fs/jffs2/dir.c')
-rw-r--r--fs/jffs2/dir.c121
1 files changed, 86 insertions, 35 deletions
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index 8bc7a50..edd8371 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -17,8 +17,8 @@
#include <linux/fs.h>
#include <linux/crc32.h>
#include <linux/jffs2.h>
-#include <linux/jffs2_fs_i.h>
-#include <linux/jffs2_fs_sb.h>
+#include "jffs2_fs_i.h"
+#include "jffs2_fs_sb.h"
#include <linux/time.h>
#include "nodelist.h"
@@ -57,7 +57,12 @@ struct inode_operations jffs2_dir_inode_operations =
.rmdir = jffs2_rmdir,
.mknod = jffs2_mknod,
.rename = jffs2_rename,
+ .permission = jffs2_permission,
.setattr = jffs2_setattr,
+ .setxattr = jffs2_setxattr,
+ .getxattr = jffs2_getxattr,
+ .listxattr = jffs2_listxattr,
+ .removexattr = jffs2_removexattr
};
/***********************************************************************/
@@ -78,6 +83,9 @@ static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
D1(printk(KERN_DEBUG "jffs2_lookup()\n"));
+ if (target->d_name.len > JFFS2_MAX_NAME_LEN)
+ return ERR_PTR(-ENAMETOOLONG);
+
dir_f = JFFS2_INODE_INFO(dir_i);
c = JFFS2_SB_INFO(dir_i->i_sb);
@@ -206,12 +214,15 @@ static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode,
ret = jffs2_do_create(c, dir_f, f, ri,
dentry->d_name.name, dentry->d_name.len);
- if (ret) {
- make_bad_inode(inode);
- iput(inode);
- jffs2_free_raw_inode(ri);
- return ret;
- }
+ if (ret)
+ goto fail;
+
+ ret = jffs2_init_security(inode, dir_i);
+ if (ret)
+ goto fail;
+ ret = jffs2_init_acl(inode, dir_i);
+ if (ret)
+ goto fail;
dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(ri->ctime));
@@ -221,6 +232,12 @@ static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode,
D1(printk(KERN_DEBUG "jffs2_create: Created ino #%lu with mode %o, nlink %d(%d). nrpages %ld\n",
inode->i_ino, inode->i_mode, inode->i_nlink, f->inocache->nlink, inode->i_mapping->nrpages));
return 0;
+
+ fail:
+ make_bad_inode(inode);
+ iput(inode);
+ jffs2_free_raw_inode(ri);
+ return ret;
}
/***********************************************************************/
@@ -291,7 +308,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
struct jffs2_full_dnode *fn;
struct jffs2_full_dirent *fd;
int namelen;
- uint32_t alloclen, phys_ofs;
+ uint32_t alloclen;
int ret, targetlen = strlen(target);
/* FIXME: If you care. We'd need to use frags for the target
@@ -310,8 +327,8 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
* Just the node will do for now, though
*/
namelen = dentry->d_name.len;
- ret = jffs2_reserve_space(c, sizeof(*ri) + targetlen, &phys_ofs, &alloclen,
- ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
+ ret = jffs2_reserve_space(c, sizeof(*ri) + targetlen, &alloclen,
+ ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
@@ -339,7 +356,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
ri->data_crc = cpu_to_je32(crc32(0, target, targetlen));
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
- fn = jffs2_write_dnode(c, f, ri, target, targetlen, phys_ofs, ALLOC_NORMAL);
+ fn = jffs2_write_dnode(c, f, ri, target, targetlen, ALLOC_NORMAL);
jffs2_free_raw_inode(ri);
@@ -371,8 +388,20 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
up(&f->sem);
jffs2_complete_reservation(c);
- ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
- ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
+
+ ret = jffs2_init_security(inode, dir_i);
+ if (ret) {
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+ ret = jffs2_init_acl(inode, dir_i);
+ if (ret) {
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+
+ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
+ ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
/* Eep. */
jffs2_clear_inode(inode);
@@ -404,7 +433,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
- fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
+ fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, ALLOC_NORMAL);
if (IS_ERR(fd)) {
/* dirent failed to write. Delete the inode normally
@@ -442,7 +471,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
struct jffs2_full_dnode *fn;
struct jffs2_full_dirent *fd;
int namelen;
- uint32_t alloclen, phys_ofs;
+ uint32_t alloclen;
int ret;
mode |= S_IFDIR;
@@ -457,8 +486,8 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
* Just the node will do for now, though
*/
namelen = dentry->d_name.len;
- ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL,
- JFFS2_SUMMARY_INODE_SIZE);
+ ret = jffs2_reserve_space(c, sizeof(*ri), &alloclen, ALLOC_NORMAL,
+ JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
@@ -483,7 +512,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
ri->data_crc = cpu_to_je32(0);
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
- fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
+ fn = jffs2_write_dnode(c, f, ri, NULL, 0, ALLOC_NORMAL);
jffs2_free_raw_inode(ri);
@@ -501,8 +530,20 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
up(&f->sem);
jffs2_complete_reservation(c);
- ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
- ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
+
+ ret = jffs2_init_security(inode, dir_i);
+ if (ret) {
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+ ret = jffs2_init_acl(inode, dir_i);
+ if (ret) {
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+
+ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
+ ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
/* Eep. */
jffs2_clear_inode(inode);
@@ -534,7 +575,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
- fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
+ fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, ALLOC_NORMAL);
if (IS_ERR(fd)) {
/* dirent failed to write. Delete the inode normally
@@ -588,12 +629,12 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
struct jffs2_full_dnode *fn;
struct jffs2_full_dirent *fd;
int namelen;
- jint16_t dev;
+ union jffs2_device_node dev;
int devlen = 0;
- uint32_t alloclen, phys_ofs;
+ uint32_t alloclen;
int ret;
- if (!old_valid_dev(rdev))
+ if (!new_valid_dev(rdev))
return -EINVAL;
ri = jffs2_alloc_raw_inode();
@@ -602,17 +643,15 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
c = JFFS2_SB_INFO(dir_i->i_sb);
- if (S_ISBLK(mode) || S_ISCHR(mode)) {
- dev = cpu_to_je16(old_encode_dev(rdev));
- devlen = sizeof(dev);
- }
+ if (S_ISBLK(mode) || S_ISCHR(mode))
+ devlen = jffs2_encode_dev(&dev, rdev);
/* Try to reserve enough space for both node and dirent.
* Just the node will do for now, though
*/
namelen = dentry->d_name.len;
- ret = jffs2_reserve_space(c, sizeof(*ri) + devlen, &phys_ofs, &alloclen,
- ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
+ ret = jffs2_reserve_space(c, sizeof(*ri) + devlen, &alloclen,
+ ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
@@ -639,7 +678,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
ri->data_crc = cpu_to_je32(crc32(0, &dev, devlen));
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
- fn = jffs2_write_dnode(c, f, ri, (char *)&dev, devlen, phys_ofs, ALLOC_NORMAL);
+ fn = jffs2_write_dnode(c, f, ri, (char *)&dev, devlen, ALLOC_NORMAL);
jffs2_free_raw_inode(ri);
@@ -657,8 +696,20 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
up(&f->sem);
jffs2_complete_reservation(c);
- ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
- ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
+
+ ret = jffs2_init_security(inode, dir_i);
+ if (ret) {
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+ ret = jffs2_init_acl(inode, dir_i);
+ if (ret) {
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+
+ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
+ ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
/* Eep. */
jffs2_clear_inode(inode);
@@ -693,7 +744,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
- fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
+ fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, ALLOC_NORMAL);
if (IS_ERR(fd)) {
/* dirent failed to write. Delete the inode normally