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Maintain inode count in super and log trees

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Add a count of used inodes to the super block and a change in the inode
count to the log_trees struct.   Client transactions track the change in
inode count as they create and delete inodes.   The log_trees delta is
added to the count in the super as finalized log_trees are deleted.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2021-10-28 12:30:47 -07:00
parent 94e5bc1457
commit 95ed36f9d3
8 changed files with 85 additions and 1 deletions
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kmod/src/dir.c
+4
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@@ -31,6 +31,7 @@
#include "lock.h"
#include "hash.h"
#include "omap.h"
#include "forest.h"
#include "counters.h"
#include "scoutfs_trace.h"
@@ -836,6 +837,7 @@ static int scoutfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
si->crtime = inode->i_mtime;
inode_inc_iversion(dir);
inode_inc_iversion(inode);
scoutfs_forest_inc_inode_count(sb);
if (S_ISDIR(mode)) {
inc_nlink(inode);
@@ -1309,6 +1311,7 @@ static int scoutfs_symlink(struct inode *dir, struct dentry *dentry,
si->crtime = inode->i_ctime;
i_size_write(inode, name_len);
inode_inc_iversion(inode);
scoutfs_forest_inc_inode_count(sb);
scoutfs_update_inode_item(inode, inode_lock, &ind_locks);
scoutfs_update_inode_item(dir, dir_lock, &ind_locks);
@@ -1908,6 +1911,7 @@ static int scoutfs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mod
ihold(inode); /* need to update inode modifications in d_tmpfile */
d_tmpfile(dentry, inode);
inode_inc_iversion(inode);
scoutfs_forest_inc_inode_count(sb);
scoutfs_update_inode_item(inode, inode_lock, &ind_locks);
scoutfs_update_inode_item(dir, dir_lock, &ind_locks);