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authorChristoph Hellwig <hch@tuxera.com>2010-10-14 09:54:39 -0400
committerChristoph Hellwig <hch@lst.de>2010-10-14 09:54:39 -0400
commit90e616905a423126805186cb5754e10a704b30c8 (patch)
treef3b142b0414462ae9f267689c965d91c784760d4 /fs/hfsplus/inode.c
parent722c55d13e7296cc62ed8a38f926a915ff32e4ea (diff)
hfsplus: create correct initial catalog entries for device files
Make sure the initial insertation of the catalog entry already contains the device number by calling init_special_inode early and setting writing out the dev field of the on-disk permission structure. The latter is facilitated by sharing the almost identical hfsplus_set_perms helpers between initial catalog entry creating and ->write_inode. Unless we crashed just after mknod this bug was harmless as the inode is marked dirty at the end of hfsplus_mknod, and hfsplus_write_inode will update the catalog entry to contain the correct value. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
Diffstat (limited to 'fs/hfsplus/inode.c')
-rw-r--r--fs/hfsplus/inode.c27
1 files changed, 2 insertions, 25 deletions
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index df57ea1f3a71..78449280dae0 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -252,29 +252,6 @@ static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, i
inode->i_flags &= ~S_APPEND;
}
-static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
-{
- if (inode->i_flags & S_IMMUTABLE)
- perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
- else
- perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
- if (inode->i_flags & S_APPEND)
- perms->rootflags |= HFSPLUS_FLG_APPEND;
- else
- perms->rootflags &= ~HFSPLUS_FLG_APPEND;
- perms->userflags = HFSPLUS_I(inode)->userflags;
- perms->mode = cpu_to_be16(inode->i_mode);
- perms->owner = cpu_to_be32(inode->i_uid);
- perms->group = cpu_to_be32(inode->i_gid);
-
- if (S_ISREG(inode->i_mode))
- perms->dev = cpu_to_be32(inode->i_nlink);
- else if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode))
- perms->dev = cpu_to_be32(inode->i_rdev);
- else
- perms->dev = 0;
-}
-
static int hfsplus_file_open(struct inode *inode, struct file *file)
{
if (HFSPLUS_IS_RSRC(inode))
@@ -578,7 +555,7 @@ int hfsplus_cat_write_inode(struct inode *inode)
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
sizeof(struct hfsplus_cat_folder));
/* simple node checks? */
- hfsplus_set_perms(inode, &folder->permissions);
+ hfsplus_cat_set_perms(inode, &folder->permissions);
folder->access_date = hfsp_ut2mt(inode->i_atime);
folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
@@ -600,7 +577,7 @@ int hfsplus_cat_write_inode(struct inode *inode)
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
sizeof(struct hfsplus_cat_file));
hfsplus_inode_write_fork(inode, &file->data_fork);
- hfsplus_set_perms(inode, &file->permissions);
+ hfsplus_cat_set_perms(inode, &file->permissions);
if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
else