TheCloud/fuse-overlayfs
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Merge pull request #402 from giuseppe/fix-perf-issue

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main: fix performance issue with large dirs
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Giuseppe Scrivano 2023-08-29 17:31:41 +02:00 committed by GitHub
commit ff6b14d0a8
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3 changed files with 15 additions and 4 deletions
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4
NEWS
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@ -1,3 +1,7 @@
* fuse-overlayfs-1.13
- fix a performance issue when dealing with big directories.
* fuse-overlayfs-1.12 * fuse-overlayfs-1.12
- change license to GPL-2.0-or-later. - change license to GPL-2.0-or-later.

2
fuse-overlayfs.h
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@ -54,6 +54,8 @@ struct ovl_node
struct ovl_node *next_link; struct ovl_node *next_link;
unsigned int in_readdir; unsigned int in_readdir;
size_t n_links;
unsigned int do_unlink : 1; unsigned int do_unlink : 1;
unsigned int do_rmdir : 1; unsigned int do_rmdir : 1;
unsigned int hidden : 1; unsigned int hidden : 1;

13
main.c
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@ -941,9 +941,13 @@ rpl_stat (fuse_req_t req, struct ovl_node *node, int fd, const char *path, struc
st->st_ino = node->tmp_ino; st->st_ino = node->tmp_ino;
st->st_dev = node->tmp_dev; st->st_dev = node->tmp_dev;
if (node_dirp (node)) if (node->loaded && node->n_links > 0)
st->st_nlink = node->n_links;
else if (node_dirp (node))
{ {
if (!data->static_nlink) if (data->static_nlink)
st->st_nlink = 1;
else
{ {
struct ovl_node *it; struct ovl_node *it;
@ -955,8 +959,8 @@ rpl_stat (fuse_req_t req, struct ovl_node *node, int fd, const char *path, struc
st->st_nlink++; st->st_nlink++;
} }
} }
else
st->st_nlink = 1; node->n_links = st->st_nlink;
} }
else else
{ {
@ -5157,6 +5161,7 @@ ovl_mkdir (fuse_req_t req, fuse_ino_t parent, const char *name, mode_t mode)
e.attr_timeout = get_timeout (lo); e.attr_timeout = get_timeout (lo);
e.entry_timeout = get_timeout (lo); e.entry_timeout = get_timeout (lo);
node->ino->lookups++; node->ino->lookups++;
pnode->n_links++;
fuse_reply_entry (req, &e); fuse_reply_entry (req, &e);
} }