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| author | Eric Dumazet <dada1@cosmosbay.com> | 2007-10-20 01:47:49 +0200 |
|---|---|---|
| committer | Adrian Bunk <bunk@kernel.org> | 2007-10-20 01:47:49 +0200 |
| commit | 94547426db2f4f2aad2f640ca074ccb1c6f7e660 (patch) | |
| tree | 102645f27b6a6275b72471b7aab3404c6814a7c7 /Documentation/filesystems/files.txt | |
| parent | 6888c1ecd63a3e5e206048602b3f59b58f4ffd8f (diff) | |
| download | op-kernel-dev-94547426db2f4f2aad2f640ca074ccb1c6f7e660.zip op-kernel-dev-94547426db2f4f2aad2f640ca074ccb1c6f7e660.tar.gz | |
Documentation/filesystems/files.txt: remove rcuref_inc_lf() reverences
rcuref_inc_lf() is not used anymore. Replace it by atomic_inc_not_zero()
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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 133e213..bb0142f 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(). |
