diff options
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 0554c48cb1fd..966ecb0d8f86 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c | |||
| @@ -2825,14 +2825,14 @@ fix_extent_len: | |||
| 2825 | * to an uninitialized extent. | 2825 | * to an uninitialized extent. |
| 2826 | * | 2826 | * |
| 2827 | * Writing to an uninitized extent may result in splitting the uninitialized | 2827 | * Writing to an uninitized extent may result in splitting the uninitialized |
| 2828 | * extent into multiple /intialized unintialized extents (up to three) | 2828 | * extent into multiple /initialized uninitialized extents (up to three) |
| 2829 | * There are three possibilities: | 2829 | * There are three possibilities: |
| 2830 | * a> There is no split required: Entire extent should be uninitialized | 2830 | * a> There is no split required: Entire extent should be uninitialized |
| 2831 | * b> Splits in two extents: Write is happening at either end of the extent | 2831 | * b> Splits in two extents: Write is happening at either end of the extent |
| 2832 | * c> Splits in three extents: Somone is writing in middle of the extent | 2832 | * c> Splits in three extents: Somone is writing in middle of the extent |
| 2833 | * | 2833 | * |
| 2834 | * One of more index blocks maybe needed if the extent tree grow after | 2834 | * One of more index blocks maybe needed if the extent tree grow after |
| 2835 | * the unintialized extent split. To prevent ENOSPC occur at the IO | 2835 | * the uninitialized extent split. To prevent ENOSPC occur at the IO |
| 2836 | * complete, we need to split the uninitialized extent before DIO submit | 2836 | * complete, we need to split the uninitialized extent before DIO submit |
| 2837 | * the IO. The uninitialized extent called at this time will be split | 2837 | * the IO. The uninitialized extent called at this time will be split |
| 2838 | * into three uninitialized extent(at most). After IO complete, the part | 2838 | * into three uninitialized extent(at most). After IO complete, the part |