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Searched refs:i_rwsem (Results 1 – 25 of 40) sorted by relevance

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/linux-6.15/fs/netfs/
H A Dlocking.c57 __acquires(inode->i_rwsem) in netfs_start_io_read()
66 up_read(&inode->i_rwsem); in netfs_start_io_read()
72 up_write(&inode->i_rwsem); in netfs_start_io_read()
88 __releases(inode->i_rwsem) in netfs_end_io_read()
90 up_read(&inode->i_rwsem); in netfs_end_io_read()
102 __acquires(inode->i_rwsem) in netfs_start_io_write()
125 __releases(inode->i_rwsem) in netfs_end_io_write()
127 up_read(&inode->i_rwsem); in netfs_end_io_write()
168 __acquires(inode->i_rwsem) in netfs_start_io_direct()
178 up_read(&inode->i_rwsem); in netfs_start_io_direct()
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/linux-6.15/fs/ceph/
H A Dio.c56 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-6.15/fs/nfs/
H A Dio.c49 err = down_read_killable(&inode->i_rwsem); in nfs_start_io_read()
54 up_read(&inode->i_rwsem); in nfs_start_io_read()
57 err = down_write_killable(&inode->i_rwsem); in nfs_start_io_read()
61 downgrade_write(&inode->i_rwsem); in nfs_start_io_read()
76 up_read(&inode->i_rwsem); in nfs_end_io_read()
91 err = down_write_killable(&inode->i_rwsem); in nfs_start_io_write()
107 up_write(&inode->i_rwsem); in nfs_end_io_write()
142 err = down_read_killable(&inode->i_rwsem); in nfs_start_io_direct()
147 up_read(&inode->i_rwsem); in nfs_start_io_direct()
154 downgrade_write(&inode->i_rwsem); in nfs_start_io_direct()
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/linux-6.15/Documentation/filesystems/
H A Ddirectory-locking.rst7 kinds of locks - per-inode (->i_rwsem) and per-filesystem
10 When taking the i_rwsem on multiple non-directory objects, we
140 * rank ->i_rwsem of non-directories on given filesystem in inode pointer
142 * put ->i_rwsem of all directories on a filesystem at the same rank,
143 lower than ->i_rwsem of any non-directory on the same filesystem.
144 * put ->s_vfs_rename_mutex at rank lower than that of any ->i_rwsem
152 2. ->i_rwsem of directories on that NFS filesystem, same rank for all
153 3. ->i_rwsem of non-directories on that filesystem, in order of
156 5. ->i_rwsem of directories on the local filesystem, same rank for all
157 6. ->i_rwsem of non-directories on local filesystem, in order of
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H A Dlocking.rst99 ops i_rwsem(inode)
128 Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_rwsem
131 ->unlink() and ->rename() have ->i_rwsem exclusive on all non-directories
133 ->rename() has ->i_rwsem exclusive on any subdirectory that changes parent.
156 ops i_rwsem(inode)
281 ops folio locked i_rwsem invalidate_lock
570 ->iterate_shared() is called with i_rwsem held for reading, and with the
605 blocking changes through write(2) and similar operations inode->i_rwsem can be
H A Dpath-lookup.rst246 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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H A Dgfs2-glocks.rst112 1. i_rwsem (if required)
/linux-6.15/fs/orangefs/
H A Dfile.c329 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()
349 down_read(&inode->i_rwsem); in orangefs_file_splice_read()
356 up_read(&inode->i_rwsem); in orangefs_file_splice_read()
/linux-6.15/Documentation/filesystems/iomap/
H A Doperations.rst106 ``i_rwsem`` or ``invalidate_lock`` and updates mapping information.
190 Callers commonly take ``i_rwsem`` in either shared or exclusive mode
233 Callers typically hold ``i_rwsem`` and ``invalidate_lock`` in exclusive
271 It does not lock ``i_rwsem`` or ``invalidate_lock``.
493 Callers commonly hold ``i_rwsem`` in shared mode before calling this
547 Callers commonly hold ``i_rwsem`` in shared or exclusive mode before
611 Callers commonly hold ``i_rwsem`` in shared mode before calling this
688 Callers commonly hold ``i_rwsem`` in shared mode before calling this
703 Callers commonly hold ``i_rwsem`` in shared mode before calling this
716 Callers must hold ``i_rwsem`` in exclusive mode; this is already
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H A Ddesign.rst111 * ``i_rwsem``: The VFS ``struct inode`` rwsemaphore.
408 For example, a filesystem might take ``i_rwsem`` before calling
/linux-6.15/fs/
H A Dreaddir.c53 up_read(&inode->i_rwsem); in wrap_directory_iterator()
54 down_write(&inode->i_rwsem); in wrap_directory_iterator()
67 downgrade_write(&inode->i_rwsem); in wrap_directory_iterator()
101 res = down_read_killable(&inode->i_rwsem); in iterate_dir()
H A Dinode.c272 init_rwsem(&inode->i_rwsem); in inode_init_always_gfp()
273 lockdep_set_class(&inode->i_rwsem, &sb->s_type->i_mutex_key); in inode_init_always_gfp()
1159 if (lockdep_match_class(&inode->i_rwsem, &type->i_mutex_key)) { in lockdep_annotate_inode_mutex_key()
1164 init_rwsem(&inode->i_rwsem); in lockdep_annotate_inode_mutex_key()
1165 lockdep_set_class(&inode->i_rwsem, in lockdep_annotate_inode_mutex_key()
H A Ddax.c1764 lockdep_assert_held_write(&iomi.inode->i_rwsem); in dax_iomap_rw()
1767 lockdep_assert_held(&iomi.inode->i_rwsem); in dax_iomap_rw()
/linux-6.15/fs/xfs/scrub/
H A Dxfile.c71 lockdep_set_class(&inode->i_rwsem, &xfile_i_mutex_key); in xfile_create()
97 lockdep_set_class(&inode->i_rwsem, &inode->i_sb->s_type->i_mutex_key); in xfile_destroy()
/linux-6.15/fs/xfs/
H A Dxfs_inode.c149 down_write_nested(&VFS_I(ip)->i_rwsem, in xfs_ilock()
152 down_read_nested(&VFS_I(ip)->i_rwsem, in xfs_ilock()
192 if (!down_write_trylock(&VFS_I(ip)->i_rwsem)) in xfs_ilock_nowait()
195 if (!down_read_trylock(&VFS_I(ip)->i_rwsem)) in xfs_ilock_nowait()
223 up_write(&VFS_I(ip)->i_rwsem); in xfs_ilock_nowait()
225 up_read(&VFS_I(ip)->i_rwsem); in xfs_ilock_nowait()
250 up_write(&VFS_I(ip)->i_rwsem); in xfs_iunlock()
252 up_read(&VFS_I(ip)->i_rwsem); in xfs_iunlock()
285 downgrade_write(&VFS_I(ip)->i_rwsem); in xfs_ilock_demote()
310 rwsem_assert_held(&VFS_I(ip)->i_rwsem); in xfs_assert_ilocked()
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H A Dxfs_buf_mem.c73 lockdep_set_class(&inode->i_rwsem, &xmbuf_i_mutex_key); in xmbuf_alloc()
H A Dxfs_iops.c1382 lockdep_set_class(&inode->i_rwsem, in xfs_setup_inode()
/linux-6.15/include/linux/
H A Dfs.h727 struct rw_semaphore i_rwsem; member
867 down_write(&inode->i_rwsem); in inode_lock()
872 up_write(&inode->i_rwsem); in inode_unlock()
877 down_read(&inode->i_rwsem); in inode_lock_shared()
882 up_read(&inode->i_rwsem); in inode_unlock_shared()
887 return down_write_trylock(&inode->i_rwsem); in inode_trylock()
892 return down_read_trylock(&inode->i_rwsem); in inode_trylock_shared()
897 return rwsem_is_locked(&inode->i_rwsem); in inode_is_locked()
902 down_write_nested(&inode->i_rwsem, subclass); in inode_lock_nested()
907 down_read_nested(&inode->i_rwsem, subclass); in inode_lock_shared_nested()
/linux-6.15/fs/configfs/
H A Dinode.c134 lockdep_set_class(&inode->i_rwsem, in configfs_set_inode_lock_class()
/linux-6.15/fs/ext4/
H A Dfile.c313 lockdep_assert_held_write(&inode->i_rwsem); in ext4_handle_inode_extension()
339 lockdep_assert_held_write(&inode->i_rwsem); in ext4_inode_extension_cleanup()
/linux-6.15/lib/
H A Dtest_lockup.c548 lock_rwsem_ptr = (unsigned long)&test_inode->i_rwsem; in test_lockup_init()
/linux-6.15/fs/btrfs/
H A Dbtrfs_inode.h517 lockdep_assert_held(&inode->vfs_inode.i_rwsem); in btrfs_assert_inode_locked()
/linux-6.15/fs/overlayfs/
H A Dinode.c835 lockdep_set_class(&inode->i_rwsem, &ovl_i_mutex_dir_key[depth]); in ovl_lockdep_annotate_inode_mutex_key()
837 lockdep_set_class(&inode->i_rwsem, &ovl_i_mutex_key[depth]); in ovl_lockdep_annotate_inode_mutex_key()
/linux-6.15/fs/afs/
H A Daddr_prefs.c392 lockdep_is_held(&file_inode(file)->i_rwsem)); in afs_proc_addr_prefs_write()
/linux-6.15/Documentation/mm/
H A Dprocess_addrs.rst380 inode->i_rwsem (while writing or truncating, not reading or faulting)
411 ->i_rwsem
424 ->i_rwsem (generic_perform_write)

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