diff options
Diffstat (limited to 'Documentation/filesystems')
15 files changed, 45 insertions, 20 deletions
diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX index 7001782ab932..875d49696b6e 100644 --- a/Documentation/filesystems/00-INDEX +++ b/Documentation/filesystems/00-INDEX @@ -1,7 +1,5 @@ 00-INDEX - this file (info on some of the filesystems supported by linux). -Exporting - - explanation of how to make filesystems exportable. Locking - info on locking rules as they pertain to Linux VFS. 9p.txt @@ -68,12 +66,8 @@ mandatory-locking.txt - info on the Linux implementation of Sys V mandatory file locking. ncpfs.txt - info on Novell Netware(tm) filesystem using NCP protocol. -nfs41-server.txt - - info on the Linux server implementation of NFSv4 minor version 1. -nfs-rdma.txt - - how to install and setup the Linux NFS/RDMA client and server software. -nfsroot.txt - - short guide on setting up a diskless box with NFS root filesystem. +nfs/ + - nfs-related documentation. nilfs2.txt - info and mount options for the NILFS2 filesystem. ntfs.txt @@ -92,8 +86,6 @@ relay.txt - info on relay, for efficient streaming from kernel to user space. romfs.txt - description of the ROMFS filesystem. -rpc-cache.txt - - introduction to the caching mechanisms in the sunrpc layer. seq_file.txt - how to use the seq_file API sharedsubtree.txt diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt index 05d5cf1d743f..867c5b50cb42 100644 --- a/Documentation/filesystems/ext3.txt +++ b/Documentation/filesystems/ext3.txt @@ -32,8 +32,8 @@ journal_dev=devnum When the external journal device's major/minor numbers identified through its new major/minor numbers encoded in devnum. -noload Don't load the journal on mounting. Note that this forces - mount of inconsistent filesystem, which can lead to +norecovery Don't load the journal on mounting. Note that this forces +noload mount of inconsistent filesystem, which can lead to various problems. data=journal All data are committed into the journal prior to being diff --git a/Documentation/filesystems/nfs/00-INDEX b/Documentation/filesystems/nfs/00-INDEX new file mode 100644 index 000000000000..2f68cd688769 --- /dev/null +++ b/Documentation/filesystems/nfs/00-INDEX @@ -0,0 +1,16 @@ +00-INDEX + - this file (nfs-related documentation). +Exporting + - explanation of how to make filesystems exportable. +knfsd-stats.txt + - statistics which the NFS server makes available to user space. +nfs.txt + - nfs client, and DNS resolution for fs_locations. +nfs41-server.txt + - info on the Linux server implementation of NFSv4 minor version 1. +nfs-rdma.txt + - how to install and setup the Linux NFS/RDMA client and server software +nfsroot.txt + - short guide on setting up a diskless box with NFS root filesystem. +rpc-cache.txt + - introduction to the caching mechanisms in the sunrpc layer. diff --git a/Documentation/filesystems/Exporting b/Documentation/filesystems/nfs/Exporting index 87019d2b5981..87019d2b5981 100644 --- a/Documentation/filesystems/Exporting +++ b/Documentation/filesystems/nfs/Exporting diff --git a/Documentation/filesystems/knfsd-stats.txt b/Documentation/filesystems/nfs/knfsd-stats.txt index 64ced5149d37..64ced5149d37 100644 --- a/Documentation/filesystems/knfsd-stats.txt +++ b/Documentation/filesystems/nfs/knfsd-stats.txt diff --git a/Documentation/filesystems/nfs-rdma.txt b/Documentation/filesystems/nfs/nfs-rdma.txt index e386f7e4bcee..e386f7e4bcee 100644 --- a/Documentation/filesystems/nfs-rdma.txt +++ b/Documentation/filesystems/nfs/nfs-rdma.txt diff --git a/Documentation/filesystems/nfs.txt b/Documentation/filesystems/nfs/nfs.txt index f50f26ce6cd0..f50f26ce6cd0 100644 --- a/Documentation/filesystems/nfs.txt +++ b/Documentation/filesystems/nfs/nfs.txt diff --git a/Documentation/filesystems/nfs41-server.txt b/Documentation/filesystems/nfs/nfs41-server.txt index 5920fe26e6ff..1bd0d0c05171 100644 --- a/Documentation/filesystems/nfs41-server.txt +++ b/Documentation/filesystems/nfs/nfs41-server.txt @@ -41,7 +41,7 @@ interoperability problems with future clients. Known issues: conformant with the spec (for example, we don't use kerberos on the backchannel correctly). - no trunking support: no clients currently take advantage of - trunking, but this is a mandatory failure, and its use is + trunking, but this is a mandatory feature, and its use is recommended to clients in a number of places. (E.g. to ensure timely renewal in case an existing connection's retry timeouts have gotten too long; see section 8.3 of the draft.) @@ -213,3 +213,10 @@ The following cases aren't supported yet: DESTROY_CLIENTID, DESTROY_SESSION, EXCHANGE_ID. * DESTROY_SESSION MUST be the final operation in the COMPOUND request. +Nonstandard compound limitations: +* No support for a sessions fore channel RPC compound that requires both a + ca_maxrequestsize request and a ca_maxresponsesize reply, so we may + fail to live up to the promise we made in CREATE_SESSION fore channel + negotiation. +* No more than one IO operation (read, write, readdir) allowed per + compound. diff --git a/Documentation/filesystems/nfsroot.txt b/Documentation/filesystems/nfs/nfsroot.txt index 3ba0b945aaf8..3ba0b945aaf8 100644 --- a/Documentation/filesystems/nfsroot.txt +++ b/Documentation/filesystems/nfs/nfsroot.txt diff --git a/Documentation/filesystems/rpc-cache.txt b/Documentation/filesystems/nfs/rpc-cache.txt index 8a382bea6808..8a382bea6808 100644 --- a/Documentation/filesystems/rpc-cache.txt +++ b/Documentation/filesystems/nfs/rpc-cache.txt diff --git a/Documentation/filesystems/nilfs2.txt b/Documentation/filesystems/nilfs2.txt index 01539f410676..4949fcaa6b6a 100644 --- a/Documentation/filesystems/nilfs2.txt +++ b/Documentation/filesystems/nilfs2.txt @@ -49,8 +49,7 @@ Mount options NILFS2 supports the following mount options: (*) == default -barrier=on(*) This enables/disables barriers. barrier=off disables - it, barrier=on enables it. +nobarrier Disables barriers. errors=continue(*) Keep going on a filesystem error. errors=remount-ro Remount the filesystem read-only on an error. errors=panic Panic and halt the machine if an error occurs. @@ -71,6 +70,10 @@ order=strict Apply strict in-order semantics that preserves sequence blocks. That means, it is guaranteed that no overtaking of events occurs in the recovered file system after a crash. +norecovery Disable recovery of the filesystem on mount. + This disables every write access on the device for + read-only mounts or snapshots. This option will fail + for r/w mounts on an unclean volume. NILFS2 usage ============ diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 92b888d540a6..a7e9746ee7ea 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -140,7 +140,7 @@ Callers of notify_change() need ->i_mutex now. New super_block field "struct export_operations *s_export_op" for explicit support for exporting, e.g. via NFS. The structure is fully documented at its declaration in include/linux/fs.h, and in -Documentation/filesystems/Exporting. +Documentation/filesystems/nfs/Exporting. Briefly it allows for the definition of decode_fh and encode_fh operations to encode and decode filehandles, and allows the filesystem to use diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 94b9f2056f4c..220cc6376ef8 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -38,6 +38,7 @@ Table of Contents 3.3 /proc/<pid>/io - Display the IO accounting fields 3.4 /proc/<pid>/coredump_filter - Core dump filtering settings 3.5 /proc/<pid>/mountinfo - Information about mounts + 3.6 /proc/<pid>/comm & /proc/<pid>/task/<tid>/comm ------------------------------------------------------------------------------ @@ -1409,3 +1410,11 @@ For more information on mount propagation see: Documentation/filesystems/sharedsubtree.txt + +3.6 /proc/<pid>/comm & /proc/<pid>/task/<tid>/comm +-------------------------------------------------------- +These files provide a method to access a tasks comm value. It also allows for +a task to set its own or one of its thread siblings comm value. The comm value +is limited in size compared to the cmdline value, so writing anything longer +then the kernel's TASK_COMM_LEN (currently 16 chars) will result in a truncated +comm value. diff --git a/Documentation/filesystems/seq_file.txt b/Documentation/filesystems/seq_file.txt index 0d15ebccf5b0..a1e2e0dda907 100644 --- a/Documentation/filesystems/seq_file.txt +++ b/Documentation/filesystems/seq_file.txt @@ -248,9 +248,7 @@ code, that is done in the initialization code in the usual way: { struct proc_dir_entry *entry; - entry = create_proc_entry("sequence", 0, NULL); - if (entry) - entry->proc_fops = &ct_file_ops; + proc_create("sequence", 0, NULL, &ct_file_ops); return 0; } diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 623f094c9d8d..3de2f32edd90 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -472,7 +472,7 @@ __sync_single_inode) to check if ->writepages has been successful in writing out the whole address_space. The Writeback tag is used by filemap*wait* and sync_page* functions, -via wait_on_page_writeback_range, to wait for all writeback to +via filemap_fdatawait_range, to wait for all writeback to complete. While waiting ->sync_page (if defined) will be called on each page that is found to require writeback. |