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add option to drop file caches before closing files

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This commit is contained in:
Antonio SJ Musumeci 2017-02-18 13:45:43 -05:00
parent 3a89491507
commit 6aa62d03ff
4 changed files with 42 additions and 19 deletions
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19
src/release.cpp
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@ -18,14 +18,25 @@
#include <string>
#include "config.hpp"
#include "errno.hpp"
#include "fileinfo.hpp"
#include "fs_base_close.hpp"
#include "fs_fadvise.hpp"
static
int
_release(FileInfo *fi)
_release(FileInfo *fi,
const bool dropcacheonclose)
{
// according to Feh of nocache calling it once doesn't always work
// https://github.com/Feh/nocache
if(dropcacheonclose)
{
fs::fadvise(fi->fd,0,0,POSIX_FADV_DONTNEED);
fs::fadvise(fi->fd,0,0,POSIX_FADV_DONTNEED);
}
fs::close(fi->fd);
delete fi;
@ -41,9 +52,11 @@ namespace mergerfs
release(const char *fusepath,
fuse_file_info *ffi)
{
FileInfo *fi = reinterpret_cast<FileInfo*>(ffi->fh);
const fuse_context *fc = fuse_get_context();
const Config &config = Config::get(fc);
FileInfo *fi = reinterpret_cast<FileInfo*>(ffi->fh);
return _release(fi);
return _release(fi,config.dropcacheonclose);
}
}
}