Commit 9cc97d64 authored by chandan r's avatar chandan r Committed by Chris Mason

Btrfs: Add code to support file creation time

This patch adds a new member to the 'struct btrfs_inode' structure to hold
the file creation time.
Signed-off-by: default avatarchandan <chandanrmail@gmail.com>
[refreshed, removed btrfs_inode_otime]
Signed-off-by: default avatarDavid Sterba <dsterba@suse.cz>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent a937b979
...@@ -185,6 +185,9 @@ struct btrfs_inode { ...@@ -185,6 +185,9 @@ struct btrfs_inode {
struct btrfs_delayed_node *delayed_node; struct btrfs_delayed_node *delayed_node;
/* File creation time. */
struct timespec i_otime;
struct inode vfs_inode; struct inode vfs_inode;
}; };
......
...@@ -1769,6 +1769,11 @@ static void fill_stack_inode_item(struct btrfs_trans_handle *trans, ...@@ -1769,6 +1769,11 @@ static void fill_stack_inode_item(struct btrfs_trans_handle *trans,
inode->i_ctime.tv_sec); inode->i_ctime.tv_sec);
btrfs_set_stack_timespec_nsec(&inode_item->ctime, btrfs_set_stack_timespec_nsec(&inode_item->ctime,
inode->i_ctime.tv_nsec); inode->i_ctime.tv_nsec);
btrfs_set_stack_timespec_sec(&inode_item->otime,
BTRFS_I(inode)->i_otime.tv_sec);
btrfs_set_stack_timespec_nsec(&inode_item->otime,
BTRFS_I(inode)->i_otime.tv_nsec);
} }
int btrfs_fill_inode(struct inode *inode, u32 *rdev) int btrfs_fill_inode(struct inode *inode, u32 *rdev)
...@@ -1810,6 +1815,11 @@ int btrfs_fill_inode(struct inode *inode, u32 *rdev) ...@@ -1810,6 +1815,11 @@ int btrfs_fill_inode(struct inode *inode, u32 *rdev)
inode->i_ctime.tv_sec = btrfs_stack_timespec_sec(&inode_item->ctime); inode->i_ctime.tv_sec = btrfs_stack_timespec_sec(&inode_item->ctime);
inode->i_ctime.tv_nsec = btrfs_stack_timespec_nsec(&inode_item->ctime); inode->i_ctime.tv_nsec = btrfs_stack_timespec_nsec(&inode_item->ctime);
BTRFS_I(inode)->i_otime.tv_sec =
btrfs_stack_timespec_sec(&inode_item->otime);
BTRFS_I(inode)->i_otime.tv_nsec =
btrfs_stack_timespec_nsec(&inode_item->otime);
inode->i_generation = BTRFS_I(inode)->generation; inode->i_generation = BTRFS_I(inode)->generation;
BTRFS_I(inode)->index_cnt = (u64)-1; BTRFS_I(inode)->index_cnt = (u64)-1;
......
...@@ -3535,6 +3535,11 @@ static void btrfs_read_locked_inode(struct inode *inode) ...@@ -3535,6 +3535,11 @@ static void btrfs_read_locked_inode(struct inode *inode)
inode->i_ctime.tv_sec = btrfs_timespec_sec(leaf, &inode_item->ctime); inode->i_ctime.tv_sec = btrfs_timespec_sec(leaf, &inode_item->ctime);
inode->i_ctime.tv_nsec = btrfs_timespec_nsec(leaf, &inode_item->ctime); inode->i_ctime.tv_nsec = btrfs_timespec_nsec(leaf, &inode_item->ctime);
BTRFS_I(inode)->i_otime.tv_sec =
btrfs_timespec_sec(leaf, &inode_item->otime);
BTRFS_I(inode)->i_otime.tv_nsec =
btrfs_timespec_nsec(leaf, &inode_item->otime);
inode_set_bytes(inode, btrfs_inode_nbytes(leaf, inode_item)); inode_set_bytes(inode, btrfs_inode_nbytes(leaf, inode_item));
BTRFS_I(inode)->generation = btrfs_inode_generation(leaf, inode_item); BTRFS_I(inode)->generation = btrfs_inode_generation(leaf, inode_item);
BTRFS_I(inode)->last_trans = btrfs_inode_transid(leaf, inode_item); BTRFS_I(inode)->last_trans = btrfs_inode_transid(leaf, inode_item);
...@@ -3669,6 +3674,11 @@ static void fill_inode_item(struct btrfs_trans_handle *trans, ...@@ -3669,6 +3674,11 @@ static void fill_inode_item(struct btrfs_trans_handle *trans,
btrfs_set_token_timespec_nsec(leaf, &item->ctime, btrfs_set_token_timespec_nsec(leaf, &item->ctime,
inode->i_ctime.tv_nsec, &token); inode->i_ctime.tv_nsec, &token);
btrfs_set_token_timespec_sec(leaf, &item->otime,
BTRFS_I(inode)->i_otime.tv_sec, &token);
btrfs_set_token_timespec_nsec(leaf, &item->otime,
BTRFS_I(inode)->i_otime.tv_nsec, &token);
btrfs_set_token_inode_nbytes(leaf, item, inode_get_bytes(inode), btrfs_set_token_inode_nbytes(leaf, item, inode_get_bytes(inode),
&token); &token);
btrfs_set_token_inode_generation(leaf, item, BTRFS_I(inode)->generation, btrfs_set_token_inode_generation(leaf, item, BTRFS_I(inode)->generation,
...@@ -5260,7 +5270,10 @@ static struct inode *new_simple_dir(struct super_block *s, ...@@ -5260,7 +5270,10 @@ static struct inode *new_simple_dir(struct super_block *s,
inode->i_op = &btrfs_dir_ro_inode_operations; inode->i_op = &btrfs_dir_ro_inode_operations;
inode->i_fop = &simple_dir_operations; inode->i_fop = &simple_dir_operations;
inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO; inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_mtime = CURRENT_TIME;
inode->i_atime = inode->i_mtime;
inode->i_ctime = inode->i_mtime;
BTRFS_I(inode)->i_otime = inode->i_mtime;
return inode; return inode;
} }
...@@ -5828,7 +5841,12 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans, ...@@ -5828,7 +5841,12 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
inode_init_owner(inode, dir, mode); inode_init_owner(inode, dir, mode);
inode_set_bytes(inode, 0); inode_set_bytes(inode, 0);
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->i_mtime = CURRENT_TIME;
inode->i_atime = inode->i_mtime;
inode->i_ctime = inode->i_mtime;
BTRFS_I(inode)->i_otime = inode->i_mtime;
inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0], inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_item); struct btrfs_inode_item);
memset_extent_buffer(path->nodes[0], 0, (unsigned long)inode_item, memset_extent_buffer(path->nodes[0], 0, (unsigned long)inode_item,
...@@ -8577,6 +8595,9 @@ struct inode *btrfs_alloc_inode(struct super_block *sb) ...@@ -8577,6 +8595,9 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
ei->delayed_node = NULL; ei->delayed_node = NULL;
ei->i_otime.tv_sec = 0;
ei->i_otime.tv_nsec = 0;
inode = &ei->vfs_inode; inode = &ei->vfs_inode;
extent_map_tree_init(&ei->extent_tree); extent_map_tree_init(&ei->extent_tree);
extent_io_tree_init(&ei->io_tree, &inode->i_data); extent_io_tree_init(&ei->io_tree, &inode->i_data);
......
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