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Diffstat (limited to 'Documentation/filesystems/quota.txt')
| -rw-r--r-- | Documentation/filesystems/quota.txt | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/Documentation/filesystems/quota.txt b/Documentation/filesystems/quota.txt index a590c4093ef..5e8de25bf0f 100644 --- a/Documentation/filesystems/quota.txt +++ b/Documentation/filesystems/quota.txt @@ -3,14 +3,14 @@ Quota subsystem =============== Quota subsystem allows system administrator to set limits on used space and -number of used inodes (inode is a filesystem structure which is associated -with each file or directory) for users and/or groups. For both used space and -number of used inodes there are actually two limits. The first one is called -softlimit and the second one hardlimit. An user can never exceed a hardlimit -for any resource. User is allowed to exceed softlimit but only for limited -period of time. This period is called "grace period" or "grace time". When -grace time is over, user is not able to allocate more space/inodes until he -frees enough of them to get below softlimit. +number of used inodes (inode is a filesystem structure which is associated with +each file or directory) for users and/or groups. For both used space and number +of used inodes there are actually two limits. The first one is called softlimit +and the second one hardlimit. An user can never exceed a hardlimit for any +resource (unless he has CAP_SYS_RESOURCE capability). User is allowed to exceed +softlimit but only for limited period of time. This period is called "grace +period" or "grace time". When grace time is over, user is not able to allocate +more space/inodes until he frees enough of them to get below softlimit. Quota limits (and amount of grace time) are set independently for each filesystem. @@ -53,6 +53,12 @@ in parentheses): QUOTA_NL_BSOFTLONGWARN - space (block) softlimit is exceeded longer than given grace period. QUOTA_NL_BSOFTWARN - space (block) softlimit + - four warnings are also defined for the event when user stops + exceeding some limit: + QUOTA_NL_IHARDBELOW - inode hardlimit + QUOTA_NL_ISOFTBELOW - inode softlimit + QUOTA_NL_BHARDBELOW - space (block) hardlimit + QUOTA_NL_BSOFTBELOW - space (block) softlimit QUOTA_NL_A_DEV_MAJOR (u32) - major number of a device with the affected filesystem QUOTA_NL_A_DEV_MINOR (u32) |