iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

libperf: Avoid internal moving of fdarray fds

Browse Source 
Avoid moving of fds by fdarray__filter() so fds indices returned by
fdarray__add() can be used for access and processing of objects at
struct pollfd *entries.

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/676844f8-55d3-c628-23db-aa163a81519e@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Alexey Budankov
2020-07-17 09:59:12 +03:00
committed by Arnaldo Carvalho de Melo
parent 070b3b5ad7
commit 59b4412f27
2 changed files with 7 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
tools/lib/api/fd/array.c
View File

@ -93,22 +93,21 @@ int fdarray__filter(struct fdarray *fda, short revents,
return 0;
for (fd = 0; fd < fda->nr; ++fd) {
if (!fda->entries[fd].events)
continue;
if (fda->entries[fd].revents & revents) {
if (entry_destructor)
entry_destructor(fda, fd, arg);
fda->entries[fd].revents = fda->entries[fd].events = 0;
continue;
}
if (fd != nr) {
fda->entries[nr] = fda->entries[fd];
fda->priv[nr] = fda->priv[fd];
}
++nr;
}
return fda->nr = nr;
return nr;
}
int fdarray__poll(struct fdarray *fda, int timeout)