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-rw-r--r--include/linux/fs.h20
-rw-r--r--include/linux/fsnotify.h4
-rw-r--r--include/linux/lockref.h7
3 files changed, 25 insertions, 6 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index be3ad155ec9f..2c3b2f8a621f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -222,7 +222,6 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
#define FMODE_FSNOTIFY_HSM(mode) 0
#endif
-
/*
* Attribute flags. These should be or-ed together to figure out what
* has been changed!
@@ -791,6 +790,19 @@ struct inode {
static inline void inode_set_cached_link(struct inode *inode, char *link, int linklen)
{
+ int testlen;
+
+ /*
+ * TODO: patch it into a debug-only check if relevant macros show up.
+ * In the meantime, since we are suffering strlen even on production kernels
+ * to find the right length, do a fixup if the wrong value got passed.
+ */
+ testlen = strlen(link);
+ if (testlen != linklen) {
+ WARN_ONCE(1, "bad length passed for symlink [%s] (got %d, expected %d)",
+ link, linklen, testlen);
+ linklen = testlen;
+ }
inode->i_link = link;
inode->i_linklen = linklen;
inode->i_opflags |= IOP_CACHED_LINK;
@@ -3140,6 +3152,12 @@ static inline void exe_file_allow_write_access(struct file *exe_file)
allow_write_access(exe_file);
}
+static inline void file_set_fsnotify_mode(struct file *file, fmode_t mode)
+{
+ file->f_mode &= ~FMODE_FSNOTIFY_MASK;
+ file->f_mode |= mode;
+}
+
static inline bool inode_is_open_for_write(const struct inode *inode)
{
return atomic_read(&inode->i_writecount) > 0;
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 1a9ef8f6784d..6a33288bd6a1 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -129,7 +129,7 @@ static inline int fsnotify_file(struct file *file, __u32 mask)
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
-void file_set_fsnotify_mode(struct file *file);
+void file_set_fsnotify_mode_from_watchers(struct file *file);
/*
* fsnotify_file_area_perm - permission hook before access to file range
@@ -213,7 +213,7 @@ static inline int fsnotify_open_perm(struct file *file)
}
#else
-static inline void file_set_fsnotify_mode(struct file *file)
+static inline void file_set_fsnotify_mode_from_watchers(struct file *file)
{
}
diff --git a/include/linux/lockref.h b/include/linux/lockref.h
index c39f119659ba..676721ee878d 100644
--- a/include/linux/lockref.h
+++ b/include/linux/lockref.h
@@ -37,12 +37,13 @@ struct lockref {
/**
* lockref_init - Initialize a lockref
* @lockref: pointer to lockref structure
- * @count: initial count
+ *
+ * Initializes @lockref->count to 1.
*/
-static inline void lockref_init(struct lockref *lockref, unsigned int count)
+static inline void lockref_init(struct lockref *lockref)
{
spin_lock_init(&lockref->lock);
- lockref->count = count;
+ lockref->count = 1;
}
void lockref_get(struct lockref *lockref);