rt/mergerfs
1
0
Fork 0
mirror of https://github.com/trapexit/mergerfs.git synced 2026-10-26 19:01:56 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

moveonenospc: enhance the feature to allow using a policy

Browse source 
Just like functions you can now set a policy for moveonfreenospc. This
allows for more flexibility.

For backwards compatibility moveonfreenospc=true is converted to
moveonfreenospc=mfs.

minfreespace does apply which is slightly different from original behavior.
This commit is contained in:
Antonio SJ Musumeci 2020-07-12 14:03:14 -04:00
parent f2d4fbfdb2
commit 08d267fc61
23 changed files with 483 additions and 148 deletions
Download patch file Download diff file Expand all files Collapse all files

44
src/fuse_write.cpp
View file

@ -75,6 +75,32 @@ namespace l
return rv;
}
static
int
move_and_write(WriteFunc func_,
const char *buf_,
const size_t count_,
const off_t offset_,
FileInfo *fi_,
int err_)
{
int rv;
const Config &config = Config::ro();
if(config.moveonenospc.enabled == false)
return err_;
rv = fs::movefile_as_root(config.moveonenospc.policy,
config.branches,
config.minfreespace,
fi_->fusepath,
&fi_->fd);
if(rv == -1)
return err_;
return func_(fi_->fd,buf_,count_,offset_);
}
static
int
write(WriteFunc func_,
@ -90,23 +116,7 @@ namespace l
rv = func_(fi->fd,buf_,count_,offset_);
if(l::out_of_space(-rv))
{
const Config &config = Config::ro();
if(config.moveonenospc)
{
vector<string> paths;
const ugid::Set ugid(0,0);
config.branches.to_paths(paths);
rv = fs::movefile(paths,fi->fusepath,count_,fi->fd);
if(rv == -1)
return -ENOSPC;
rv = func_(fi->fd,buf_,count_,offset_);
}
}
rv = l::move_and_write(func_,buf_,count_,offset_,fi,rv);
return rv;
}