What all can be done with a lazy-unmounted filesystem?
umount --lazy calls umount(2) with the MNT_DETACH flag set. umount(2) says that will
"Perform a lazy unmount: make the mount point unavailable for new accesses, immediately disconnect the filesystem and all filesystems mounted below it from each other and from the mount table, and actually perform the unmount when the mount point ceases to be busy.
umount(8) says that a file system is busy...
for example, when there are open files on it, or when some process has its working directory there, or when a swap file on it is in use.
But what exactly does "unavailable for new access" mean? I've seen applications that chdir(2) into a directory which is subsequently unmounted, and they behave just fine.
linux unmounting
asked 5 mins ago
Jonathon ReinhartJonathon Reinhart
7781817
add a comment |
umount --lazy calls umount(2) with the MNT_DETACH flag set. umount(2) says that will
"Perform a lazy unmount: make the mount point unavailable for new accesses, immediately disconnect the filesystem and all filesystems mounted below it from each other and from the mount table, and actually perform the unmount when the mount point ceases to be busy.
umount(8) says that a file system is busy...
for example, when there are open files on it, or when some process has its working directory there, or when a swap file on it is in use.
But what exactly does "unavailable for new access" mean? I've seen applications that chdir(2) into a directory which is subsequently unmounted, and they behave just fine.
linux unmounting
asked 5 mins ago
Jonathon ReinhartJonathon Reinhart
7781817
add a comment |
umount --lazy calls umount(2) with the MNT_DETACH flag set. umount(2) says that will
"Perform a lazy unmount: make the mount point unavailable for new accesses, immediately disconnect the filesystem and all filesystems mounted below it from each other and from the mount table, and actually perform the unmount when the mount point ceases to be busy.
umount(8) says that a file system is busy...
for example, when there are open files on it, or when some process has its working directory there, or when a swap file on it is in use.
But what exactly does "unavailable for new access" mean? I've seen applications that chdir(2) into a directory which is subsequently unmounted, and they behave just fine.
linux unmounting
asked 5 mins ago
Jonathon ReinhartJonathon Reinhart
7781817
umount --lazy calls umount(2) with the MNT_DETACH flag set. umount(2) says that will
"Perform a lazy unmount: make the mount point unavailable for new accesses, immediately disconnect the filesystem and all filesystems mounted below it from each other and from the mount table, and actually perform the unmount when the mount point ceases to be busy.
umount(8) says that a file system is busy...
for example, when there are open files on it, or when some process has its working directory there, or when a swap file on it is in use.
But what exactly does "unavailable for new access" mean? I've seen applications that chdir(2) into a directory which is subsequently unmounted, and they behave just fine.
linux unmounting
linux unmounting
asked 5 mins ago
Jonathon ReinhartJonathon Reinhart
7781817
asked 5 mins ago
Jonathon ReinhartJonathon Reinhart
7781817
asked 5 mins ago
Jonathon ReinhartJonathon Reinhart
7781817
asked 5 mins ago
Jonathon ReinhartJonathon Reinhart
7781817
asked 5 mins ago
Jonathon ReinhartJonathon Reinhart
7781817
7781817
add a comment |
add a comment |
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