diff options
Diffstat (limited to 'doc/hacker-guide/en-US/markdown/posix.md')
-rw-r--r-- | doc/hacker-guide/en-US/markdown/posix.md | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/doc/hacker-guide/en-US/markdown/posix.md b/doc/hacker-guide/en-US/markdown/posix.md deleted file mode 100644 index 84c813e55a2..00000000000 --- a/doc/hacker-guide/en-US/markdown/posix.md +++ /dev/null @@ -1,59 +0,0 @@ -storage/posix translator -======================== - -Notes ------ - -### `SET_FS_ID` - -This is so that all filesystem checks are done with the user's -uid/gid and not GlusterFS's uid/gid. - -### `MAKE_REAL_PATH` - -This macro concatenates the base directory of the posix volume -('option directory') with the given path. - -### `need_xattr` in lookup - -If this flag is passed, lookup returns a xattr dictionary that contains -the file's create time, the file's contents, and the version number -of the file. - -This is a hack to increase small file performance. If an application -wants to read a small file, it can finish its job with just a lookup -call instead of a lookup followed by read. - -### `getdents`/`setdents` - -These are used by unify to set and get directory entries. - -### `ALIGN_BUF` - -Macro to align an address to a page boundary (4K). - -### `priv->export_statfs` - -In some cases, two exported volumes may reside on the same -partition on the server. Sending statvfs info for both -the volumes will lead to erroneous df output at the client, -since free space on the partition will be counted twice. - -In such cases, user can disable exporting statvfs info -on one of the volumes by setting this option. - -### `xattrop` - -This fop is used by replicate to set version numbers on files. - -### `getxattr`/`setxattr` hack to read/write files - -A key, `GLUSTERFS_FILE_CONTENT_STRING`, is handled in a special way by -`getxattr`/`setxattr`. A getxattr with the key will return the entire -content of the file as the value. A `setxattr` with the key will write -the value as the entire content of the file. - -### `posix_checksum` - -This calculates a simple XOR checksum on all entry names in a -directory that is used by unify to compare directory contents. |