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| author | Steve French <sfrench@us.ibm.com> | 2007-10-20 04:26:44 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2007-10-20 04:26:44 +0000 |
| commit | 748c5151deb56e4b7b5a9b07a884243764933831 (patch) | |
| tree | e9dd45b8806d00b56503cfa55c46f3ebce0d151c /Documentation/filesystems/files.txt | |
| parent | 4879b44829d94a1f8facf90cced3c5f23c5a8c62 (diff) | |
| parent | e8b8c977734193adedf2b0f607d6252c78e86394 (diff) | |
| download | talos-obmc-linux-748c5151deb56e4b7b5a9b07a884243764933831.tar.gz talos-obmc-linux-748c5151deb56e4b7b5a9b07a884243764933831.zip | |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'Documentation/filesystems/files.txt')
| -rw-r--r-- | Documentation/filesystems/files.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/filesystems/files.txt b/Documentation/filesystems/files.txt index 133e213ebb72..bb0142f61084 100644 --- a/Documentation/filesystems/files.txt +++ b/Documentation/filesystems/files.txt @@ -76,13 +76,13 @@ the fdtable structure - 5. Handling of the file structures is special. Since the look-up of the fd (fget()/fget_light()) are lock-free, it is possible that look-up may race with the last put() operation on the - file structure. This is avoided using the rcuref APIs + file structure. This is avoided using atomic_inc_not_zero() on ->f_count : rcu_read_lock(); file = fcheck_files(files, fd); if (file) { - if (rcuref_inc_lf(&file->f_count)) + if (atomic_inc_not_zero(&file->f_count)) *fput_needed = 1; else /* Didn't get the reference, someone's freed */ @@ -92,7 +92,7 @@ the fdtable structure - .... return file; - rcuref_inc_lf() detects if refcounts is already zero or + atomic_inc_not_zero() detects if refcounts is already zero or goes to zero during increment. If it does, we fail fget()/fget_light(). |
