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-rw-r--r--Documentation/filesystems/files.txt6
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/filesystems/files.txt b/Documentation/filesystems/files.txt
index 133e213ebb7..bb0142f6108 100644
--- a/Documentation/filesystems/files.txt
+++ b/Documentation/filesystems/files.txt
@@ -76,13 +76,13 @@ the fdtable structure -
765. Handling of the file structures is special. Since the look-up 765. Handling of the file structures is special. Since the look-up
77 of the fd (fget()/fget_light()) are lock-free, it is possible 77 of the fd (fget()/fget_light()) are lock-free, it is possible
78 that look-up may race with the last put() operation on the 78 that look-up may race with the last put() operation on the
79 file structure. This is avoided using the rcuref APIs 79 file structure. This is avoided using atomic_inc_not_zero()
80 on ->f_count : 80 on ->f_count :
81 81
82 rcu_read_lock(); 82 rcu_read_lock();
83 file = fcheck_files(files, fd); 83 file = fcheck_files(files, fd);
84 if (file) { 84 if (file) {
85 if (rcuref_inc_lf(&file->f_count)) 85 if (atomic_inc_not_zero(&file->f_count))
86 *fput_needed = 1; 86 *fput_needed = 1;
87 else 87 else
88 /* Didn't get the reference, someone's freed */ 88 /* Didn't get the reference, someone's freed */
@@ -92,7 +92,7 @@ the fdtable structure -
92 .... 92 ....
93 return file; 93 return file;
94 94
95 rcuref_inc_lf() detects if refcounts is already zero or 95 atomic_inc_not_zero() detects if refcounts is already zero or
96 goes to zero during increment. If it does, we fail 96 goes to zero during increment. If it does, we fail
97 fget()/fget_light(). 97 fget()/fget_light().
98 98