- 22 Jan, 2020 1 commit
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J. R. Okajima authored
Signed-off-by:J. R. Okajima <hooanon05g@gmail.com> (cherry picked from commit 56b4b776c84f364384971c4cdfd66b4a2f0696d4)
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- 09 Mar, 2019 7 commits
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J. R. Okajima authored
Signed-off-by: -
J. R. Okajima authored
This feature automatically handles MVDOWN in other commits. In user-space, a daemon monitors the free space of the branch and issues MVDOWN ioctl automatically when necessary. The main role is in user-space and several options are implemented. For a branch to join the FHSM circle, a new attribute 'fhsm' should be specified. See also the document in this commit. Signed-off-by: -
J. R. Okajima authored
Support for the options of MVDOWN feature, which allows to overwrite the existing entry, and writing to the branch even if its permission is RO. Signed-off-by: -
J. R. Okajima authored
Because of some inode is in use, the deletion of a branch can fail. For those who wants to test the inode is busy or not, aufs provides an ioctl, and a utility 'aubusy' in aufs-util.git. Signed-off-by: -
J. R. Okajima authored
For a directory which has millions of files, aufs VDIR consumes much memory. In this case, RDU (readdir(3) in user-space) is definitely better. If you enable CONFIG_AUFS_RDU at compiling aufs, install libau.so from aufs-util.git, and set some environment variables, then you can use this feature. When readdir(3) in libau.so receives an aufs dir, it issues ioctl(2) instead of regular readdir(3). All merging and whiteout handling are done in userspace. Signed-off-by: -
J. R. Okajima authored
Provide info about the branches, which will be used from user-space. This is essentially equivalent to the entries under sysfs (/sys/fs/aufs/si_*/). But the ioctl behaviour is atomic and never confuse the matching of the branch id. Signed-off-by: -
J. R. Okajima authored
Provide a file descriptor corresponding the specified writable branch. The file descriptor will be used from user-space such as FHSM and libau.so. For details, see aufs-util.git. Signed-off-by:
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