diff options
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/9p.txt | 2 | ||||
| -rw-r--r-- | Documentation/filesystems/Locking | 2 | ||||
| -rw-r--r-- | Documentation/filesystems/ext3.txt | 14 | ||||
| -rw-r--r-- | Documentation/filesystems/files.txt | 6 | ||||
| -rw-r--r-- | Documentation/filesystems/proc.txt | 7 | ||||
| -rw-r--r-- | Documentation/filesystems/sysfs.txt | 2 | ||||
| -rw-r--r-- | Documentation/filesystems/vfs.txt | 2 |
7 files changed, 18 insertions, 17 deletions
diff --git a/Documentation/filesystems/9p.txt b/Documentation/filesystems/9p.txt index d6fd6c6e424..b90f537af35 100644 --- a/Documentation/filesystems/9p.txt +++ b/Documentation/filesystems/9p.txt @@ -54,7 +54,7 @@ OPTIONS aname=name aname specifies the file tree to access when the server is offering several exported file systems. - cache=mode specifies a cacheing policy. By default, no caches are used. + cache=mode specifies a caching policy. By default, no caches are used. loose = no attempts are made at consistency, intended for exclusive, read-only mounts diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index fe26cc97852..37c10cba717 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -224,7 +224,7 @@ against the page the filesystem should redirty the page with redirty_page_for_writepage(), then unlock the page and return zero. This may also be done to avoid internal deadlocks, but rarely. -If the filesytem is called for sync then it must wait on any +If the filesystem is called for sync then it must wait on any in-progress I/O and then start new I/O. The filesystem should unlock the page synchronously, before returning to the diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt index 4aecc9bdb27..b45f3c1b8b4 100644 --- a/Documentation/filesystems/ext3.txt +++ b/Documentation/filesystems/ext3.txt @@ -130,12 +130,12 @@ Device layer. Journaling Block Device layer ----------------------------- -The Journaling Block Device layer (JBD) isn't ext3 specific. It was design to -add journaling capabilities on a block device. The ext3 filesystem code will -inform the JBD of modifications it is performing (called a transaction). The -journal supports the transactions start and stop, and in case of crash, the -journal can replayed the transactions to put the partition back in a -consistent state fast. +The Journaling Block Device layer (JBD) isn't ext3 specific. It was designed +to add journaling capabilities to a block device. The ext3 filesystem code +will inform the JBD of modifications it is performing (called a transaction). +The journal supports the transactions start and stop, and in case of a crash, +the journal can replay the transactions to quickly put the partition back into +a consistent state. Handles represent a single atomic update to a filesystem. JBD can handle an external journal on a block device. @@ -164,7 +164,7 @@ written to the journal first, and then to its final location. In the event of a crash, the journal can be replayed, bringing both data and metadata into a consistent state. This mode is the slowest except when data needs to be read from and written to disk at the same time where it -outperforms all others modes. +outperforms all other modes. Compatibility ------------- diff --git a/Documentation/filesystems/files.txt b/Documentation/filesystems/files.txt index 133e213ebb7..bb0142f6108 100644 --- a/Documentation/filesystems/files.txt +++ b/Documentation/filesystems/files.txt @@ -76,13 +76,13 @@ the fdtable structure - 5. Handling of the file structures is special. Since the look-up of the fd (fget()/fget_light()) are lock-free, it is possible that look-up may race with the last put() operation on the - file structure. This is avoided using the rcuref APIs + file structure. This is avoided using atomic_inc_not_zero() on ->f_count : rcu_read_lock(); file = fcheck_files(files, fd); if (file) { - if (rcuref_inc_lf(&file->f_count)) + if (atomic_inc_not_zero(&file->f_count)) *fput_needed = 1; else /* Didn't get the reference, someone's freed */ @@ -92,7 +92,7 @@ the fdtable structure - .... return file; - rcuref_inc_lf() detects if refcounts is already zero or + atomic_inc_not_zero() detects if refcounts is already zero or goes to zero during increment. If it does, we fail fget()/fget_light(). diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index e5c1df52a87..dec99455321 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -813,9 +813,9 @@ Various pieces of information about kernel activity are available in the since the system first booted. For a quick look, simply cat the file: > cat /proc/stat - cpu 2255 34 2290 22625563 6290 127 456 - cpu0 1132 34 1441 11311718 3675 127 438 - cpu1 1123 0 849 11313845 2614 0 18 + cpu 2255 34 2290 22625563 6290 127 456 0 + cpu0 1132 34 1441 11311718 3675 127 438 0 + cpu1 1123 0 849 11313845 2614 0 18 0 intr 114930548 113199788 3 0 5 263 0 4 [... lots more numbers ...] ctxt 1990473 btime 1062191376 @@ -835,6 +835,7 @@ second). The meanings of the columns are as follows, from left to right: - iowait: waiting for I/O to complete - irq: servicing interrupts - softirq: servicing softirqs +- steal: involuntary wait The "intr" line gives counts of interrupts serviced since boot time, for each of the possible system interrupts. The first column is the total of all diff --git a/Documentation/filesystems/sysfs.txt b/Documentation/filesystems/sysfs.txt index 4b5ca26e504..4598ef7b622 100644 --- a/Documentation/filesystems/sysfs.txt +++ b/Documentation/filesystems/sysfs.txt @@ -51,7 +51,7 @@ for the attributes, providing a means to read and write kernel attributes. Attributes should be ASCII text files, preferably with only one value -per file. It is noted that it may not be efficient to contain only +per file. It is noted that it may not be efficient to contain only one value per file, so it is socially acceptable to express an array of values of the same type. diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 6f8e16e3d6c..9d019d35728 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -706,7 +706,7 @@ struct address_space_operations { wants to make it a free page. If ->releasepage succeeds, the page will be removed from the address_space and become free. - The second case if when a request has been made to invalidate + The second case is when a request has been made to invalidate some or all pages in an address_space. This can happen through the fadvice(POSIX_FADV_DONTNEED) system call or by the filesystem explicitly requesting it as nfs and 9fs do (when |