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Remove i_mutex() configure check

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The inode structure has used i_mutex as its internal locking
primitive since 2.6.16.  The compatibility code to check for
the previous semaphore primitive has been removed.  However,
the wrapper function itself is being kept because it's entirely
possible this primitive will change again to allow finer grained
locking.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Brian Behlendorf
2014-10-01 17:07:46 -04:00
parent 9f36cace41
commit 2bc5666f53
3 changed files with 3 additions and 31 deletions
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include/linux/file_compat.h
+2 -9
View File
@@ -81,15 +81,8 @@ spl_filp_fallocate(struct file *fp, int mode, loff_t offset, loff_t len)
# define spl_filp_fsync(fp, sync) file_fsync(fp, (fp)->f_dentry, sync)
#endif /* HAVE_VFS_FSYNC */
#ifdef HAVE_INODE_I_MUTEX
#define spl_inode_lock(ip) (mutex_lock(&(ip)->i_mutex))
#define spl_inode_lock_nested(ip, type) (mutex_lock_nested((&(ip)->i_mutex), \
(type)))
#define spl_inode_unlock(ip) (mutex_unlock(&(ip)->i_mutex))
#else
#define spl_inode_lock(ip) (down(&(ip)->i_sem))
#define spl_inode_unlock(ip) (up(&(ip)->i_sem))
#endif /* HAVE_INODE_I_MUTEX */
#define spl_inode_lock(ip) mutex_lock(&(ip)->i_mutex)
#define spl_inode_unlock(ip) mutex_unlock(&(ip)->i_mutex)
#endif /* SPL_FILE_COMPAT_H */