| /linux/fs/ceph/ |
| A D | io.c | 56 down_read(&inode->i_rwsem); in ceph_start_io_read()
59 up_read(&inode->i_rwsem); in ceph_start_io_read()
61 down_write(&inode->i_rwsem); in ceph_start_io_read()
63 downgrade_write(&inode->i_rwsem); in ceph_start_io_read()
76 up_read(&inode->i_rwsem); in ceph_end_io_read()
89 down_write(&inode->i_rwsem); in ceph_start_io_write()
103 up_write(&inode->i_rwsem); in ceph_end_io_write()
142 down_read(&inode->i_rwsem); in ceph_start_io_direct()
145 up_read(&inode->i_rwsem); in ceph_start_io_direct()
147 down_write(&inode->i_rwsem); in ceph_start_io_direct()
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| /linux/fs/nfs/ |
| A D | io.c | 47 down_read(&inode->i_rwsem); in nfs_start_io_read()
50 up_read(&inode->i_rwsem); in nfs_start_io_read()
52 down_write(&inode->i_rwsem); in nfs_start_io_read()
54 downgrade_write(&inode->i_rwsem); in nfs_start_io_read()
67 up_read(&inode->i_rwsem); in nfs_end_io_read()
80 down_write(&inode->i_rwsem); in nfs_start_io_write()
94 up_write(&inode->i_rwsem); in nfs_end_io_write()
127 down_read(&inode->i_rwsem); in nfs_start_io_direct()
130 up_read(&inode->i_rwsem); in nfs_start_io_direct()
132 down_write(&inode->i_rwsem); in nfs_start_io_direct()
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| /linux/Documentation/filesystems/ |
| A D | directory-locking.rst | 7 kinds of locks - per-inode (->i_rwsem) and per-filesystem
10 When taking the i_rwsem on multiple non-directory objects, we
58 All ->i_rwsem are taken exclusive. Again, we might get away with locking
94 Thus all processes are blocked on ->i_rwsem.
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| A D | locking.rst | 91 ops i_rwsem(inode)
118 Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_rwsem
143 ops i_rwsem(inode)
275 ops PageLocked(page) i_rwsem invalidate_lock
557 ->iterate() is called with i_rwsem exclusive.
559 ->iterate_shared() is called with i_rwsem at least shared.
593 blocking changes through write(2) and similar operations inode->i_rwsem can be
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| A D | path-lookup.rst | 246 inode->i_rwsem
256 This has a complementary role to that of ``d_lock``: ``i_rwsem`` on a
259 dcache hold ``i_rwsem`` on the relevant directory inode and briefly take
262 memory pressure. This uses ``d_lock``, but ``i_rwsem`` plays no role.
276 to take, or not take, ``i_rwsem`` is one of the
280 name that is not yet in the dcache - the shared lock on ``i_rwsem`` will
287 ``i_rwsem``, a thread must call ``d_alloc_parallel()``. This allocates a
450 takes ``i_rwsem``, rechecks the cache, and then asks the filesystem
484 ``i_rwsem`` to exclude other changes while they validate and then
503 not always, take ``i_rwsem``, depending on what it finds.
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| A D | gfs2-glocks.rst | 116 1. i_rwsem (if required)
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| A D | vfs.rst | 598 (in this case with i_rwsem locked exclusive). If unset, then
604 i_rwsem exclusive. If unset, then fall back to f_op->ioctl().
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| /linux/fs/xfs/ |
| A D | xfs_inode.c | 184 down_write_nested(&VFS_I(ip)->i_rwsem, in xfs_ilock()
187 down_read_nested(&VFS_I(ip)->i_rwsem, in xfs_ilock()
238 if (!down_write_trylock(&VFS_I(ip)->i_rwsem)) in xfs_ilock_nowait()
241 if (!down_read_trylock(&VFS_I(ip)->i_rwsem)) in xfs_ilock_nowait()
269 up_write(&VFS_I(ip)->i_rwsem); in xfs_ilock_nowait()
271 up_read(&VFS_I(ip)->i_rwsem); in xfs_ilock_nowait()
308 up_write(&VFS_I(ip)->i_rwsem); in xfs_iunlock()
310 up_read(&VFS_I(ip)->i_rwsem); in xfs_iunlock()
343 downgrade_write(&VFS_I(ip)->i_rwsem); in xfs_ilock_demote()
381 return __xfs_rwsem_islocked(&VFS_I(ip)->i_rwsem, in xfs_isilocked()
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| A D | xfs_iops.c | 1363 lockdep_set_class(&inode->i_rwsem, in xfs_setup_inode()
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| A D | xfs_icache.c | 352 ASSERT(!rwsem_is_locked(&inode->i_rwsem)); in xfs_iget_recycle()
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| A D | xfs_super.c | 637 ASSERT(!rwsem_is_locked(&inode->i_rwsem)); in xfs_fs_destroy_inode()
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| /linux/fs/orangefs/ |
| A D | file.c | 329 down_read(&file_inode(iocb->ki_filp)->i_rwsem); in orangefs_file_read_iter()
336 up_read(&file_inode(iocb->ki_filp)->i_rwsem); in orangefs_file_read_iter()
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| /linux/include/linux/ |
| A D | fs.h | 670 struct rw_semaphore i_rwsem; member
783 down_write(&inode->i_rwsem); in inode_lock()
788 up_write(&inode->i_rwsem); in inode_unlock()
793 down_read(&inode->i_rwsem); in inode_lock_shared()
798 up_read(&inode->i_rwsem); in inode_unlock_shared()
803 return down_write_trylock(&inode->i_rwsem); in inode_trylock()
808 return down_read_trylock(&inode->i_rwsem); in inode_trylock_shared()
813 return rwsem_is_locked(&inode->i_rwsem); in inode_is_locked()
818 down_write_nested(&inode->i_rwsem, subclass); in inode_lock_nested()
823 down_read_nested(&inode->i_rwsem, subclass); in inode_lock_shared_nested()
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| /linux/fs/ |
| A D | inode.c | 175 init_rwsem(&inode->i_rwsem); in inode_init_always()
176 lockdep_set_class(&inode->i_rwsem, &sb->s_type->i_mutex_key); in inode_init_always()
987 if (lockdep_match_class(&inode->i_rwsem, &type->i_mutex_key)) { in lockdep_annotate_inode_mutex_key()
992 init_rwsem(&inode->i_rwsem); in lockdep_annotate_inode_mutex_key()
993 lockdep_set_class(&inode->i_rwsem, in lockdep_annotate_inode_mutex_key()
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| A D | readdir.c | 55 res = down_read_killable(&inode->i_rwsem); in iterate_dir()
57 res = down_write_killable(&inode->i_rwsem); in iterate_dir()
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| A D | dax.c | 1282 lockdep_assert_held_write(&iomi.inode->i_rwsem); in dax_iomap_rw()
1285 lockdep_assert_held(&iomi.inode->i_rwsem); in dax_iomap_rw()
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| /linux/fs/configfs/ |
| A D | inode.c | 135 lockdep_set_class(&inode->i_rwsem, in configfs_set_inode_lock_class()
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| /linux/fs/overlayfs/ |
| A D | inode.c | 721 lockdep_set_class(&inode->i_rwsem, &ovl_i_mutex_dir_key[depth]); in ovl_lockdep_annotate_inode_mutex_key()
723 lockdep_set_class(&inode->i_rwsem, &ovl_i_mutex_key[depth]); in ovl_lockdep_annotate_inode_mutex_key()
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| A D | readdir.c | 276 err = down_write_killable(&dir->d_inode->i_rwsem); in ovl_check_whiteouts()
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| /linux/lib/ |
| A D | test_lockup.c | 543 lock_rwsem_ptr = (unsigned long)&test_inode->i_rwsem; in test_lockup_init()
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| /linux/drivers/staging/android/ |
| A D | ashmem.c | 422 lockdep_set_class(&inode->i_rwsem, &backing_shmem_inode_class); in ashmem_mmap()
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| /linux/fs/ocfs2/ |
| A D | inode.c | 245 lockdep_set_class(&inode->i_rwsem, in ocfs2_init_locked_inode()
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| /linux/fs/gfs2/ |
| A D | ops_fstype.c | 911 lockdep_set_class(&sdp->sd_quota_inode->i_rwsem, in init_inodes()
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| /linux/fs/btrfs/ |
| A D | delayed-inode.c | 1573 downgrade_write(&inode->i_rwsem); in btrfs_readdir_put_delayed_items()
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| A D | ioctl.c | 908 error = down_write_killable_nested(&dir->i_rwsem, I_MUTEX_PARENT); in btrfs_mksubvol()
3000 err = down_write_killable_nested(&dir->i_rwsem, I_MUTEX_PARENT); in btrfs_ioctl_snap_destroy()
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