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docs: filesystems: vfs: Remove space before tab
Currently the file has a bunch of spaces before tabspaces. This is a nuisance when patching the file because they show up whenever we touch these lines. Let's just fix them all now in preparation for doing the RST conversion. Remove spaces before tabspaces. Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Tobin C. Harding
Jonathan Corbet
parent
93285c0197
commit
50c1f43a37
@ -134,7 +134,7 @@ struct file_system_type {
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should be shut down
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owner: for internal VFS use: you should initialize this to THIS_MODULE in
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most cases.
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most cases.
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next: for internal VFS use: you should initialize this to NULL
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@ -143,7 +143,7 @@ struct file_system_type {
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The mount() method has the following arguments:
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struct file_system_type *fs_type: describes the filesystem, partly initialized
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by the specific filesystem code
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by the specific filesystem code
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int flags: mount flags
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@ -180,12 +180,12 @@ and provides a fill_super() callback instead. The generic variants are:
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mount_nodev: mount a filesystem that is not backed by a device
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mount_single: mount a filesystem which shares the instance between
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all mounts
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all mounts
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A fill_super() callback implementation has the following arguments:
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struct super_block *sb: the superblock structure. The callback
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must initialize this properly.
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must initialize this properly.
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void *data: arbitrary mount options, usually comes as an ASCII
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string (see "Mount Options" section)
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@ -236,14 +236,14 @@ only called from a process context (i.e. not from an interrupt handler
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or bottom half).
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alloc_inode: this method is called by alloc_inode() to allocate memory
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for struct inode and initialize it. If this function is not
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defined, a simple 'struct inode' is allocated. Normally
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alloc_inode will be used to allocate a larger structure which
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contains a 'struct inode' embedded within it.
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for struct inode and initialize it. If this function is not
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defined, a simple 'struct inode' is allocated. Normally
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alloc_inode will be used to allocate a larger structure which
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contains a 'struct inode' embedded within it.
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destroy_inode: this method is called by destroy_inode() to release
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resources allocated for struct inode. It is only required if
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->alloc_inode was defined and simply undoes anything done by
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resources allocated for struct inode. It is only required if
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->alloc_inode was defined and simply undoes anything done by
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->alloc_inode.
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dirty_inode: this method is called by the VFS to mark an inode dirty.
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@ -271,15 +271,15 @@ or bottom half).
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(i.e. unmount). This is called with the superblock lock held
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sync_fs: called when VFS is writing out all dirty data associated with
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a superblock. The second parameter indicates whether the method
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a superblock. The second parameter indicates whether the method
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should wait until the write out has been completed. Optional.
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freeze_fs: called when VFS is locking a filesystem and
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forcing it into a consistent state. This method is currently
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used by the Logical Volume Manager (LVM).
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forcing it into a consistent state. This method is currently
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used by the Logical Volume Manager (LVM).
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unfreeze_fs: called when VFS is unlocking a filesystem and making it writable
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again.
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again.
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statfs: called when the VFS needs to get filesystem statistics.
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@ -476,30 +476,30 @@ otherwise noted.
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that.
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permission: called by the VFS to check for access rights on a POSIX-like
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filesystem.
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filesystem.
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May be called in rcu-walk mode (mask & MAY_NOT_BLOCK). If in rcu-walk
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mode, the filesystem must check the permission without blocking or
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mode, the filesystem must check the permission without blocking or
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storing to the inode.
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If a situation is encountered that rcu-walk cannot handle, return
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-ECHILD and it will be called again in ref-walk mode.
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setattr: called by the VFS to set attributes for a file. This method
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is called by chmod(2) and related system calls.
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is called by chmod(2) and related system calls.
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getattr: called by the VFS to get attributes of a file. This method
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is called by stat(2) and related system calls.
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is called by stat(2) and related system calls.
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listxattr: called by the VFS to list all extended attributes for a
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given file. This method is called by the listxattr(2) system call.
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update_time: called by the VFS to update a specific time or the i_version of
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an inode. If this is not defined the VFS will update the inode itself
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and call mark_inode_dirty_sync.
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an inode. If this is not defined the VFS will update the inode itself
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and call mark_inode_dirty_sync.
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atomic_open: called on the last component of an open. Using this optional
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method the filesystem can look up, possibly create and open the file in
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method the filesystem can look up, possibly create and open the file in
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one atomic operation. If it wants to leave actual opening to the
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caller (e.g. if the file turned out to be a symlink, device, or just
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something filesystem won't do atomic open for), it may signal this by
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@ -687,13 +687,13 @@ struct address_space_operations {
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that all succeeds, ->readpage will be called again.
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writepages: called by the VM to write out pages associated with the
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address_space object. If wbc->sync_mode is WBC_SYNC_ALL, then
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the writeback_control will specify a range of pages that must be
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written out. If it is WBC_SYNC_NONE, then a nr_to_write is given
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address_space object. If wbc->sync_mode is WBC_SYNC_ALL, then
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the writeback_control will specify a range of pages that must be
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written out. If it is WBC_SYNC_NONE, then a nr_to_write is given
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and that many pages should be written if possible.
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If no ->writepages is given, then mpage_writepages is used
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instead. This will choose pages from the address space that are
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tagged as DIRTY and will pass them to ->writepage.
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instead. This will choose pages from the address space that are
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tagged as DIRTY and will pass them to ->writepage.
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set_page_dirty: called by the VM to set a page dirty.
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This is particularly needed if an address space attaches
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@ -704,11 +704,11 @@ struct address_space_operations {
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PAGECACHE_TAG_DIRTY tag in the radix tree.
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readpages: called by the VM to read pages associated with the address_space
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object. This is essentially just a vector version of
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readpage. Instead of just one page, several pages are
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requested.
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object. This is essentially just a vector version of
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readpage. Instead of just one page, several pages are
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requested.
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readpages is only used for read-ahead, so read errors are
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ignored. If anything goes wrong, feel free to give up.
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ignored. If anything goes wrong, feel free to give up.
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write_begin:
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Called by the generic buffered write code to ask the filesystem to
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@ -745,12 +745,12 @@ struct address_space_operations {
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that were able to be copied into pagecache.
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bmap: called by the VFS to map a logical block offset within object to
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physical block number. This method is used by the FIBMAP
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ioctl and for working with swap-files. To be able to swap to
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a file, the file must have a stable mapping to a block
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device. The swap system does not go through the filesystem
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but instead uses bmap to find out where the blocks in the file
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are and uses those addresses directly.
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physical block number. This method is used by the FIBMAP
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ioctl and for working with swap-files. To be able to swap to
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a file, the file must have a stable mapping to a block
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device. The swap system does not go through the filesystem
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but instead uses bmap to find out where the blocks in the file
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are and uses those addresses directly.
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invalidatepage: If a page has PagePrivate set, then invalidatepage
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will be called when part or all of the page is to be removed
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@ -810,7 +810,7 @@ struct address_space_operations {
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putback_page: Called by the VM when isolated page's migration fails.
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launder_page: Called before freeing a page - it writes back the dirty page. To
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prevent redirtying the page, it is kept locked during the whole
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prevent redirtying the page, it is kept locked during the whole
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operation.
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is_partially_uptodate: Called by the VM when reading a file through the
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@ -921,7 +921,7 @@ otherwise noted.
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unlocked_ioctl: called by the ioctl(2) system call.
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compat_ioctl: called by the ioctl(2) system call when 32 bit system calls
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are used on 64 bit kernels.
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are used on 64 bit kernels.
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mmap: called by the mmap(2) system call
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@ -946,7 +946,7 @@ otherwise noted.
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(non-blocking) mode is enabled for a file
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lock: called by the fcntl(2) system call for F_GETLK, F_SETLK, and F_SETLKW
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commands
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commands
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get_unmapped_area: called by the mmap(2) system call
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