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Diffstat (limited to 'fs/hfsplus/inode.c')
-rw-r--r--fs/hfsplus/inode.c89
1 files changed, 57 insertions, 32 deletions
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 8afd7e84f98d..a8df651747f0 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -8,6 +8,7 @@
* Inode handling routines
*/
+#include <linux/blkdev.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
@@ -77,7 +78,8 @@ static int hfsplus_releasepage(struct page *page, gfp_t mask)
if (!tree)
return 0;
if (tree->node_size >= PAGE_CACHE_SIZE) {
- nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
+ nidx = page->index >>
+ (tree->node_size_shift - PAGE_CACHE_SHIFT);
spin_lock(&tree->hash_lock);
node = hfs_bnode_findhash(tree, nidx);
if (!node)
@@ -90,7 +92,8 @@ static int hfsplus_releasepage(struct page *page, gfp_t mask)
}
spin_unlock(&tree->hash_lock);
} else {
- nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
+ nidx = page->index <<
+ (PAGE_CACHE_SHIFT - tree->node_size_shift);
i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
spin_lock(&tree->hash_lock);
do {
@@ -166,8 +169,8 @@ const struct dentry_operations hfsplus_dentry_operations = {
.d_compare = hfsplus_compare_dentry,
};
-static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
+static struct dentry *hfsplus_file_lookup(struct inode *dir,
+ struct dentry *dentry, struct nameidata *nd)
{
struct hfs_find_data fd;
struct super_block *sb = dir->i_sb;
@@ -190,7 +193,9 @@ static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dent
inode->i_ino = dir->i_ino;
INIT_LIST_HEAD(&hip->open_dir_list);
mutex_init(&hip->extents_lock);
- hip->flags = HFSPLUS_FLG_RSRC;
+ hip->extent_state = 0;
+ hip->flags = 0;
+ set_bit(HFSPLUS_I_RSRC, &hip->flags);
hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
err = hfsplus_find_cat(sb, dir->i_ino, &fd);
@@ -219,7 +224,8 @@ out:
return NULL;
}
-static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
+static void hfsplus_get_perms(struct inode *inode,
+ struct hfsplus_perm *perms, int dir)
{
struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);
u16 mode;
@@ -302,29 +308,41 @@ static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr)
return 0;
}
-static int hfsplus_file_fsync(struct file *filp, int datasync)
+int hfsplus_file_fsync(struct file *file, int datasync)
{
- struct inode *inode = filp->f_mapping->host;
- struct super_block * sb;
- int ret, err;
-
- /* sync the inode to buffers */
- ret = write_inode_now(inode, 0);
-
- /* sync the superblock to buffers */
- sb = inode->i_sb;
- if (sb->s_dirt) {
- if (!(sb->s_flags & MS_RDONLY))
- hfsplus_sync_fs(sb, 1);
- else
- sb->s_dirt = 0;
+ struct inode *inode = file->f_mapping->host;
+ struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
+ struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);
+ int error = 0, error2;
+
+ /*
+ * Sync inode metadata into the catalog and extent trees.
+ */
+ sync_inode_metadata(inode, 1);
+
+ /*
+ * And explicitly write out the btrees.
+ */
+ if (test_and_clear_bit(HFSPLUS_I_CAT_DIRTY, &hip->flags))
+ error = filemap_write_and_wait(sbi->cat_tree->inode->i_mapping);
+
+ if (test_and_clear_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags)) {
+ error2 =
+ filemap_write_and_wait(sbi->ext_tree->inode->i_mapping);
+ if (!error)
+ error = error2;
}
- /* .. finally sync the buffers to disk */
- err = sync_blockdev(sb->s_bdev);
- if (!ret)
- ret = err;
- return ret;
+ if (test_and_clear_bit(HFSPLUS_I_ALLOC_DIRTY, &hip->flags)) {
+ error2 = filemap_write_and_wait(sbi->alloc_file->i_mapping);
+ if (!error)
+ error = error2;
+ }
+
+ if (!test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
+ blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+
+ return error;
}
static const struct inode_operations hfsplus_file_inode_operations = {
@@ -337,7 +355,7 @@ static const struct inode_operations hfsplus_file_inode_operations = {
};
static const struct file_operations hfsplus_file_operations = {
- .llseek = generic_file_llseek,
+ .llseek = generic_file_llseek,
.read = do_sync_read,
.aio_read = generic_file_aio_read,
.write = do_sync_write,
@@ -370,6 +388,7 @@ struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
INIT_LIST_HEAD(&hip->open_dir_list);
mutex_init(&hip->extents_lock);
atomic_set(&hip->opencnt, 0);
+ hip->extent_state = 0;
hip->flags = 0;
memset(hip->first_extents, 0, sizeof(hfsplus_extent_rec));
memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec));
@@ -457,7 +476,8 @@ void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
}
}
-void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
+void hfsplus_inode_write_fork(struct inode *inode,
+ struct hfsplus_fork_raw *fork)
{
memcpy(&fork->extents, &HFSPLUS_I(inode)->first_extents,
sizeof(hfsplus_extent_rec));
@@ -499,13 +519,14 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
sizeof(struct hfsplus_cat_file));
- hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
- &file->data_fork : &file->rsrc_fork);
+ hfsplus_inode_read_fork(inode, HFSPLUS_IS_RSRC(inode) ?
+ &file->rsrc_fork : &file->data_fork);
hfsplus_get_perms(inode, &file->permissions, 0);
inode->i_nlink = 1;
if (S_ISREG(inode->i_mode)) {
if (file->permissions.dev)
- inode->i_nlink = be32_to_cpu(file->permissions.dev);
+ inode->i_nlink =
+ be32_to_cpu(file->permissions.dev);
inode->i_op = &hfsplus_file_inode_operations;
inode->i_fop = &hfsplus_file_operations;
inode->i_mapping->a_ops = &hfsplus_aops;
@@ -578,7 +599,9 @@ int hfsplus_cat_write_inode(struct inode *inode)
sizeof(struct hfsplus_cat_file));
hfsplus_inode_write_fork(inode, &file->data_fork);
hfsplus_cat_set_perms(inode, &file->permissions);
- if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
+ if (HFSPLUS_FLG_IMMUTABLE &
+ (file->permissions.rootflags |
+ file->permissions.userflags))
file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
else
file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
@@ -588,6 +611,8 @@ int hfsplus_cat_write_inode(struct inode *inode)
hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
sizeof(struct hfsplus_cat_file));
}
+
+ set_bit(HFSPLUS_I_CAT_DIRTY, &HFSPLUS_I(inode)->flags);
out:
hfs_find_exit(&fd);
return 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.